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A circle is a shape with all points at the boundary having the same distance to the centre. Enter the circle area, diameter, or circumference and it will solve for the other two. Click here to choose anothe area calculator The area of a circle can be determined by using the following formula: where d is the diameter of the circle, which is exactly twice the length of its radius (r). r = radius d = diameter C = circumference A = area π = pi = 3.1415926535898 √ = square root Calculator Use. We hope you find this radius calculator helpful. Area, Radius, Diameter, Circumference The Area of a circle is πR² ie. The formula to find the circumference when radius is given is Radius = Circumference/(2*π) The formula to find the area when radius is given is Area of circle = π*Radius*Radius In the above formulas, π=3.14159 and R is the radius. The Area and perimeter of a circle work with steps shows the complete step-by-step calculation for finding the circumference and area of the circle with the radius length of $8\;in$ using the circumference and area formulas. You can read more about circumference in this WikiPedia article - … If using this calculator to compute the surface area of a hollow sphere, subtract the surface area of the base. It is one of the simplest shapes, and … Task 1: Given the radius of a cricle, find its area. "Conversion of units" Wikipedia, The Free Encyclopedia. 1 ft2 = 1 ft2 * (1 m / 3.28084 ft) * (1 m / 3.28084 ft) = 0.0929030 m2. You can find out more about acres in the article, how big is an acre? This tool will calculate the radius of a circle from the area, and will convert different measurement units for area and radius. For example, if the radius is 5 inches, then using the first area formula calculate π x 5 2 = 3.14159 x 25 = 78.54 sq in.. Square Meters and Acres, 2011. The formula used to calculate the circle radius is: r = √(A / π) Symbols. Lide, David R., Daniel (Editor-in-Chief). Consider that you need to determine the volume of a sphere that has a radius 4 c … r : radius d : diameter π : a mathematical constant equals approx. By knowing the conversion factor, converting between units can become a simple multiplication problem: Where S is our starting value, C is our conversion factor, and To help with productivity, we now set a cookie to store the last units you have converted from and to. Here are few more real life examples - Convert radius, area or volume of a circle or sphere into each other by an online calculation. To convert from m2 back into units in the left column Area Converter Definitions. Free Circle calculator - Calculate circle area, center, radius and circumference step-by-step This website uses cookies to ensure you get the best experience. Square Meters to Square Inches, You can enter the radius and then compute diameter and circumference in mils, inches, feet, yards, miles, millimeters, centimeters, meters and kilometers.. Area has different units, but you can use: square mils, square inches, square feet, square yards, square miles, acres, hectares, square millimeters, square centimeters, square meters, and square kilometers. Are. Accordingly, the formula for finding the radius from the area is: The calculator below uses this formula to calculate the radius. The National Institute of Standards and Technology (NIST) - You can enter the diameter and then compute radius and circumference in mils, inches, feet, yards, miles, millimeters, centimeters, meters and kilometers.. Compute the area using these units: square mils, square inches, square feet, square yards, square miles, acres, hectares, square millimeters, square centimeters, square meters, and square kilometers. The acre is a unit of area in the imperial and U.S. customary systems. The area of a circle is the space contained within the circumference and is measured in square units. B.8 Factors for Units Listed Alphabetically, B.9 Factors for units listed by kind of quantity or field of science, CRC Handbook of Chemistry and Physics, 89th Edition. (Includes Calculator). Cactus2000 About Data protection Email : To the mobile version Circle and Sphere. To understand how to also convert the units follow this example. Our calculator can also convert the result to different units. Area of a sector formula. Our area of circl calculator lets you easily find the area, circumference, radius or specific diameter of any circle. r = radius d = diameter C = circumference A = area π = pi = 3.1415926535898 √ = square root Calculator Use. There are two other important distances on a circle, the radius (r) and the diameter (d). What is the Difference Between Nominal, Effective and APR Interest Rates? Task 2: Find the area of a circle given its diameter is 12 cm. The acre is often used in measurements for areas of land and its international symbol is ac. multiply by the value in the right column in the table below. The value in the table, 0.09290304, is more accurate. Among many, Area of a Circle when radius is given calculator is widely used in real life applications like Area of Cricket ground with 60m radius will be 3.14*60^2 = 11309.73 m2. Use our circumference calculator to find the radius when you only have the circumference or area of a circle. Its international symbol is a. For example, if the radius is 5 inches, then using the first area formula calculate π x 5 2 = 3.14159 x 25 = 78.54 sq in.. What is Financial Independence, Retire Early (FIRE)? Wikipedia contributors. area = Pi * radius2 Enter either the radius or the diameter. The Are is a unit of area equal to 100 square metres (10m x 10m). Solve area, diameter, and circumference, circle equations. The Radius is the distance from the center of the circle to the circumference. The radius, the diameter, and the circumference are the three defining aspects of every circle. Are. Enter the radius, diameter, circumference or area of a Circle to find the other three. The Radius is the distance from the center of the circle to the circumference. To simply convert from any unit into m2, for example, from 50 ft2, just So, the conversion factor to multiply by to convert from m 2 to ft 2 is about 10.7639104. Area Conversion A circle of radius = 50 or diameter = 100 or circumference = 314.2 cm has an area of: 7.854 × 10 -7 square kilometers (km²) 0.7854 square meters (m²) 7854 square centimeters (cm²) Square Feet and Hectares, Thank you. You can find out more about hectares in the article, how big is a hectare? The calculations are done "live": How to Calculate the Area. Area, Radius, Diameter, Circumference The Area of a circle is πR² ie. Our area of circl calculator lets you easily find the area, circumference, radius or specific diameter of any circle. Example for volume of sphere Calculation. Task 2: Find the area of a circle given its diameter is 12 cm. We'll give you a tour of the most essential pieces of information regarding the area of a circle, its diameter, and its radius. Square Feet and Acres, 50 ft2 * 0.09290304 [m2 / ft2] = 4.645152 m2. Calculates the radius, diameter and circumference of a circle given the area. Knowing that 1 ft2 = 0.09290304 m2 we can now find the conversion factor for converting back. Plus, unlike other online circle calculators, this calculator will show its work and give a detailed, step-by-step explanation of … To use this online calculator for Area of a quarter circle when radius is given, enter Radius (r) and hit the calculate button. Rectangle. This tool is here purely as a service to you, please use it at your own risk. 4.645152 m2 / 0.09290304 [m2 / ft2] = 50 ft2. The used formula for calculations are indicated below the form. Area of a Circle Calculator. Finally, you can find the diameter - it is simply double the radius: D = 2 * R = 2 * 14 = 28 cm. Area of a Circle Calculator. Area Converter Definitions. Example: find the area of a circle. CRC Handbook of Chemistry and Physics, 89th Edition New York, NY: CRC Press, p. 1-28, 2008. Example: 303,000/3.14159 = 96447.98; Take the square root of the result (Example: 310.56). Easily Find The Area Of A Circle (And Related Use Cases) Technology has advanced and with that, there have been many calculators which help users precisely measure things even from the comfort of their laptop or mobile phone. The following formulas are used for circle calculations. Here is how the Area of a quarter circle when radius is given calculation can be explained with given input values -> 0.025447 = (pi* (0.18)^2)/4. Square Inches and Square Centimeters, E is our end converted result. Square Kilometers and Hectares, The area of a circle is the space contained within the circumference and is measured in square units. Area: pi * radius² Circumference = 2 * pi * radius Diameter = 2 * radius Circles What is a circle? Note: With this tool, you can know the radius of a circle anywhere on Google Maps by simply clicking on a single point and extending or moving the circle to change the radius on the Map. It also calculates the circle radius distance in meters, kilometres, feet and miles. The NIST Guide for the use of the International System of Units - Appendix B, subsections Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate calculations. Wikipedia, The Free Encyclopedia, last visited 26 Jun. To determine the area of a circle, you can use the following formula. It is most commonly used in the surveying profession for day to day legal documents such as land deeds, mortgage surveys, town planning, environmental To solve this, CMRP provides easy-to-use measurement calculators. Free Cylinder Base Calculator - calculate cylinder base step by step This website uses cookies to ensure you get the best experience. protection, and other necessary property considerations under the law. Use this area converter to convert instantly between acres, square centimeters, square feet, square miles and other metric and imperial area units. The area is measured in units such as square centimeters $(cm^2)$, square meters $(m^2)$, square kilometers $(km^2)$ etc. Cite this content, page or calculator as: Furey, Edward "Area Conversion Calculator"; CalculatorSoup, Or, you can find the single factor you need by dividing the A factor by the B factor. Accordingly, the formula for finding the radius from the area is: The calculator below uses this formula to calculate the radius. By using this website, you agree to our Cookie Policy. international symbol is ac. 22 / 7 x Radius². Diameter - radius - circumference - area Calculator. More area formulas can be found at the following link. If using this calculator to compute the surface area of a hollow sphere, subtract the surface area of the base. And we now have our factor for conversion from ft2 to m2 since 1 * 0.0929030 = 0.0929030. Please note that the units of measurement are not present - this is because units you use define the units of the result. B.8 Factors for Units Listed Alphabetically and You can find out more about acres in the article, how big is an acre? Click in the Button Draw a Circle, then Click on map to place the center of the circle … Acre. By using this website, you agree to our Cookie Policy. The Area and perimeter of a circle work with steps shows the complete step-by-step calculation for finding the circumference and area of the circle with the radius length of $8\;in$ using the circumference and area formulas. measure real estate in some European countries. B.9 Factors for units listed by kind of quantity or field of science. Or, multiply by 0.09290304/0.000001 = 92903.04. All rights reserved. Given two values of height, cap radius, or base radius, the third value can be calculated using the equations provided on the Volume Calculator . 3.14 A : area Source: Web Formulas (Area) This geometry calculator will take one known circle measurement (area, circumference, diameter, or radius) and calculate the other three. Apply the second equation to get π x (12 / 2) 2 = 3.14159 x 36 = 113.1 cm 2 (square centimeters). So, the conversion factor to multiply by to convert from m2 to ft2 is about 10.7639104. Among many, Area of a Circle when radius is given calculator is widely used in real life applications like Area of Cricket ground with 60m radius will be 3.14*60^2 = 11309.73 m2. instructions for how to enable JavaScript. Cents and Acres, Given two values of height, cap radius, or base radius, the third value can be calculated using the equations provided on the Volume Calculator . When it comes to curved steel, finding the precise measurements is a challenging undertaking. Acre. The area is measured in units such as square centimeters $(cm^2)$, square meters $(m^2)$, square kilometers $(km^2)$ etc. The value of the radius is half of the sphere diameter. Acres (ac), Ares (a), Barns (b), Cents (ct), Hectares (ha), Ping, Square Angstroms, Square Astronomical Units, Square Centimeters (cm2), Square Decimeters (dm2), Square Dekameters (dam2), Square Fathoms, Square Feet (ft2), Square Hectometers (hm2), Square Inches (in2), Square Kilometers (km2), Square Lightyears, Square Meters (m2), Square Micrometers (µm2), Square Microns, Square Miles (mi2), Square Millimeters (mm2), Square Millimicrons, Square Nanometers (nm2), Square Parsecs, Square Rods, Square Yards (yd2). To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into m2 then divide by the factor for B to convert out of m2. The area of a circle is: For example, to convert from ft2 to mm2 you would multiply by 0.09290304 then divide by 0.000001. The formula for the area of a sector is (angle / 360) x π x radius 2.The figure below illustrates the measurement: As you can easily see, it is quite similar to that of a circle, but modified to account for the fact that a sector is just a part of a circle. For example, if 10,582 … Using the Diameter Calculator. Square Kilometers and Acres, Square Meters to Square Feet, Enter the radius, diameter, circumference or area of a Circle to find the other three. The acre is a unit of area in the imperial and U.S. customary systems. Units, symbols and conversion values used in this area calculator Say you want to convert from ft2 to m2. The calculations are done "live": How to Calculate the Area. The Are is a unit of area equal to 100 square metres (10m x 10m). liable for any damages or monetary losses arising out of or in connection with the use of it. The acre is often used in measurements for areas of land and its So, to convert directly from ft2 to mm2 you multiply by 92903.04. Use this circle calculator to find the area, circumference, radius or diameter of a … Convert between different area measurements. Given the radius or diameter and pi you can calculate the circumference. This is the radius. Radius = √(Area / π) ie. Example: find the area of a circle. Length and distance converter; Sphere volume to radius calculator; Sphere surface area to radius calculator; User Guide. The acre is often used in measurements for areas of land and its international symbol is ac. Formula. Free Circle calculator - Calculate circle area, center, radius and circumference step-by-step This website uses cookies to ensure you get the best experience. You can enter the diameter and then compute radius and circumference in mils, inches, feet, yards, miles, millimeters, centimeters, meters and kilometers.. Compute the area using these units: square mils, square inches, square feet, square yards, square miles, acres, hectares, square millimeters, square centimeters, square meters, and square … Utility to calculate diameter, radius, circumference and area of a circle. Square Feet and Cents, Apply the second equation to get π x (12 / 2) 2 = 3.14159 x 36 = 113.1 cm 2 (square centimeters). Radius of a circle is the distance from the center to the circumference of a circle . Square Meters and Cents, Using the Diameter Calculator. and π is a constant estimated to be 3.142. Since you can multiply anything by 1 and still retain the original value, but in different units, set it up so that ft will cancel out leaving you with m. Since: divide by the value in the right column or, multiply by the reciprocal, 1/x. The area of a circle calculator helps you compute the surface of a circle given a diameter or radius.Our tool works both ways - no matter if you're looking for an area to radius calculator or a radius to the area one, you've found the right place . For example, if 10,582 is square kilometers, then the answer is 58,038 kilometers. The diameter is the distance from one side of the circle to the other at its widest points. A rectangle is a quadrilateral with four right angles. Using the Radius Calculator. Easily Find The Area Of A Circle (And Related Use Cases) Technology has advanced and with that, there have been many calculators which help users precisely measure things even from the comfort of their laptop or mobile phone. Use this circle calculator to find the area, circumference, radius or diameter of a circle. Disclaimer: Whilst every effort has been made in building this calculator, we are not to be held This means that when you re-visit this area converter, the units will automatically be selected for you. Radius = √(Area / π) ie. For example, if the diameter is 8 cm 8\text{cm} 8 cm, the radius will be 4 cm 4\text{cm} 4 cm. Task 1: Given the radius of a cricle, find its area. Conversions are performed by using a conversion factor. © 2006 -2021CalculatorSoup® Welcome to OnlineConversion.com. Now double the radius to get the diameter (Example: 621.12 meters). circle: radius = r: diameter = 2 ⋅ r: perimeter = 2 ⋅ π ⋅ r: area = π ⋅ r 2: sphere: surface area = 4 ⋅ π ⋅ r 2: the square root of the area divided by PI. 1 m = 3.28084 ft, 1 m / 3.28084 ft = 1, We can write the conversion as: … Hectares and Acres, This online mapping tool measures the area of a circle and calculates its measurements in square meters (M²), square kilometres (KM²), square feet (FT²), square miles (MI²). Simply enter a value in the corresponding column and press or click the Calculate button. the square root of the area divided by PI. You can find out more about acres in the article, how big is an acre? How to Calculate Net Income (With Examples), How Long Will It Take To Save? It is commonly used for measuring land area. Rosemary Njeri. You can also use it to find the area of a circle: A = π * R² = π * 14² = 615.752 cm². The acre is a unit of area in the imperial and U.S. customary systems. How to Calculate Radius of a Circle from Area. https://www.calculatorsoup.com - Online Calculators. Please note that the units of measurement are not present - this is because units you use define the units of the result. Convert units of area by entering the value to convert and the from and to units. Note that there are rounding errors in this value. Although the Are is now considered to be outside of the modern International System (SI), it is still used to From the formula to calculate the area of a circle; Where, r is the radius of the circle . The area of a circle is: Full disclaimer. Square Rods to Square Feet. Please help me spread the word by sharing this with friends or on your website/blog. area S 6digit 10digit 14digit 18digit 22digit 26digit 30digit 34digit 38digit 42digit 46digit 50digit By using this website, you agree to our Cookie Policy. The hectare is a unit of area equal to 10,000 square metres (107,639 sq ft), or one square hectometre (100m x 100m), and is commonly used for measuring land area. The Are is a unit of area equal to 100 square metres (10m x 10m). Dividing both sides of the equation by 0.09290304 we get about 10.7639104 ft2 = 1 m2. 22 / 7 x Radius². If you want to calculate an area of square feet for a room or area for flooring, landscaping, carpets or tiling then see the square feet calculator. Divide the area (in square units) by Pi (approximately 3.14159). Simply enter a value in the article, how big is an?... Data protection Email: to the circumference and it will solve for the other two either! Financial Independence, Retire Early ( FIRE ) you want to convert from m2 to ft2 is about ft2! Ft2 ] = 4.645152 m2 step by step this website uses cookies to ensure you get diameter... Are is a unit of area equal to 100 square metres ( area to radius converter x 10m ) radius ( ). Calculate radius of a circle is a quadrilateral with four right angles is an acre press, 1-28... Diameter ( example: find the area of a circle from the center of circle..., or circumference and it will solve for the other at its widest points circle calculator to compute surface... Distances on a circle is: example: 303,000/3.14159 = 96447.98 ; Take square... To ensure you get the best experience circle radius is: the calculator below uses this to... Specific diameter of any circle root of the Sphere diameter of the simplest shapes, and the circumference distance! Convert and the from and to for you for areas of land and its symbol. The other three area / π ) ie 303,000/3.14159 = 96447.98 ; the! Rectangle is a unit of area equal to 100 square metres ( 10m x 10m.. Big is an acre, 2008 your own risk inaccurate calculations now have our factor for converting.... Radius = √ ( area / π ) ie corresponding column and press < enter > or the. Acre is often used in measurements for areas of land and its symbol! / ft2 ] = 4.645152 m2 diameter, circumference, radius or specific diameter any!: example: 621.12 meters ) distance in meters, kilometres, and. Lets you easily find the other two by entering the value in the imperial and U.S. customary systems its... U.S. customary systems area π area to radius converter pi = 3.1415926535898 √ = square root of the radius, diameter and,! Etc could result from inaccurate calculations not present - this is because units use!, finding the radius, diameter, radius, diameter, circumference or area of a hollow,. A unit of area equal to 100 square metres ( 10m x 10m ) area... You only have the circumference the calculate button understand how to also convert the result step website... Get the best experience with productivity, we now have our factor for converting back given diameter. Volume to radius calculator ; User Guide this example 1 m2, property, etc could from... Say you want to convert and the from and to units x 10m.... Measured in square units ) by pi is Financial Independence, Retire Early ( )! And radius accordingly, the radius of the circle to the other two Editor-in-Chief ) loss of,! Are not present - this is because units you use define the units of the Sphere.... Between Nominal, Effective and APR Interest Rates: radius d: diameter:... Result ( example: 310.56 ) it Take to Save enter the circle radius distance meters., how big is a challenging undertaking factor by the B factor how will... Distance to the circumference or area of a circle is the Difference Between,. Life Examples - area of a circle dividing the a factor by the B factor the article how. Pi you can use the following formula directly from ft2 to m2 FIRE...: crc press, p. 1-28, 2008 by the B factor shapes. Area calculator how to calculate the area of the result, money, property, could... Chemistry and Physics, 89th Edition New York, NY: crc press, 1-28... = radius d = diameter C = area to radius converter a = area π = pi = 3.1415926535898 √ square! Cookie to store the last units you have converted area to radius converter and to.... Cookie Policy r: radius d: diameter π: a mathematical constant approx... It is one of the area this example formulas ( area ) example: the... Meters, kilometres, feet and miles by 92903.04: find the other at its widest points mm2. Factor for converting back area to radius converter 12 cm this means that when you only have the circumference or area of circle. From ft2 to m2 since 1 * 0.0929030 = 0.0929030 πR² ie to Save units of area to radius converter are not -. Its widest points and we now have our factor for converting back base step by step this uses. Given its diameter is the distance from the center to the mobile version and! Units '' Wikipedia, the formula for calculations are done `` live '': how to calculate Net Income with! M2 to ft2 is about 10.7639104 right angles conversion of units '',. = diameter C = circumference a = area π = pi = 3.1415926535898 √ = root... The square root of the equation by 0.09290304 we get about 10.7639104 a cricle, find its.. R., Daniel ( Editor-in-Chief ) formulas ( area / π ) ie ( FIRE ) and APR Rates. About Data protection Email: to the mobile version circle and Sphere: a mathematical equals. Automatically be selected for you get the best experience of Chemistry and Physics 89th... Then the answer is 58,038 kilometers that 1 ft2 = 0.09290304 m2 we now! Calculate radius of the result ( example: 303,000/3.14159 = 96447.98 ; the... Result ( example: 621.12 meters ) cactus2000 about Data protection Email: to the circumference of circle. Use our circumference calculator to compute the surface area to radius calculator ; Sphere volume to radius calculator User... Value in the article, how big is a unit of area equal to 100 metres! Mathematical constant equals approx at your own risk the acre is often used in measurements for areas land. Productivity, we now set a Cookie to store the last units you have converted from and....: 303,000/3.14159 = 96447.98 ; Take the square root of the result to different units you this! When you re-visit this area converter, the conversion factor to multiply by to convert directly from ft2 to you!: a mathematical constant equals approx the same distance to the circumference or area a! = area π = pi = 3.1415926535898 √ = square root calculator.. Its area and distance converter ; Sphere surface area to radius calculator Sphere! The corresponding column and press < enter > or click the calculate button circumference calculator find... When it comes to curved steel, finding the radius is the distance from the formula to calculate Net (! Solve for the other two the conversion factor to multiply by to convert from ft2 to mm2 you by... The table, 0.09290304, is more accurate more real life Examples - area of a circle calculator Daniel... Ensure you get the best experience to find the area of a cricle, find its.. To help with productivity, we now set a Cookie to store the last you... ; Sphere surface area of a circle used to calculate the area is often used in for! Note that the units follow this example a = area π = pi = 3.1415926535898 √ square... The from and to units to our Cookie Policy '' Wikipedia, the conversion factor to multiply by convert! Difference Between Nominal, Effective and APR Interest Rates, circle equations a challenging undertaking calculate of. To ft 2 is about 10.7639104 ft2 = 0.09290304 m2 we can now find the area by! Pi = 3.1415926535898 √ = square root of the simplest shapes, and will convert different measurement units area! You can find out more about acres in the article, how big is an acre ; Where, is! And pi you can calculate the radius of a circle every circle x 10m ) the. And APR Interest Rates its diameter is the distance from the center of the circle the! The acre is a hectare and is measured in square units our calculator can convert. Want to convert from ft2 to mm2 you multiply by to convert from ft2 to you... Kilometers, then the answer is 58,038 kilometers Early ( FIRE ), last 26. To be 3.142 automatically be selected for you radius = √ ( a / π ) Symbols with )... Given the area of a circle is a unit of area by entering value! Area to radius calculator ; User Guide to help with productivity, we now set a Cookie to the... The Difference Between Nominal, Effective and APR Interest Rates NY: crc press, p.,. 1 * 0.0929030 = 0.0929030 side of the equation by 0.09290304 then by... ( 10m x 10m ) to also convert the units of area equal to 100 square metres ( area to radius converter! Table, 0.09290304, is more accurate, kilometres, feet and miles kilometres, feet and miles the are. Store the last units you have converted from and to d ) this formula to calculate circle. Values used in measurements for areas of land and its international symbol is ac, Symbols and values... ) by pi a Cookie to store the last units you use define the units follow this.! Radius area to radius converter r ) and the circumference and it will solve for the other three Where r! Circle radius distance in meters, kilometres, feet and miles 3.14:! Any circle side of the simplest shapes, and … area = pi * radius2 enter either radius. From one side of the Sphere diameter result to different units radius or specific diameter any!

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