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Jul 30, 2024 · Diameter = 2 × Radius. The formula to calculate the area of a circle using radius is as follows: Area of a circle = π × r2. And, to calculate the area of a circle using diameter use the following equation: Area of a circle = π × (d/2)2. where: π is approximately equal to 3.14.
Free online area of a circle calculator which helps you calculate the are of any circle, given its radius. Supports many different metrics such as in, ft, yd, mm, cm, meters, etc. Calculators Converters
There are a few ways to find the area of a circle. The first way to calculate area is to use the circle area calculator above. The second way is to use a circle area formula. Circle Area Formulas. To calculate the area of a circle, you’ll need its radius, diameter, or circumference. Then, use one of the following formulas. Find Area Using Radius
This calculator will calculate the area of a circle given its diameter, using the famous formula area = pi times (d/2) squared. It supports different units such as meters, feet, and inches.
How to Calculate the Area. The area of a circle is: π (Pi) times the Radius squared: A = π r2. or, when you know the Diameter: A = (π/4) × D2. or, when you know the Circumference: A = C2 / 4π. Example: What is the area of a circle with radius of 3 m ? Radius = r = 3. Area = π r2. = π × 32. = 3.14159... × (3 × 3) = 28.27 m2 (to 2 decimal places)
Jul 22, 2024 · This area of a circle calculator will help you determine the circumference, diameter, area, and radius of any circle. In the article below, you will find all the circle formulas you will ever need to calculate one of these values.
Jul 22, 2024 · These are the formulas to calculate the circumference and area of a circle: c = 2πr. A = πr² = πd²/4. where: c stands for circumference; r for radius; and. d for the diameter of the circle. π is a constant approximately equal to 3.14159265359 and, among other things, represents the circumference-to-diameter ratio of any circle.
The area of a circle can be found using the following formula: A = πr 2. where A is area, r is radius, and π is the mathematical constant approximately equal to 3.14159. Alternatively, if using the circle's diameter, D, the area is: Or, if using the circle's circumference, C, the area is: Example: Find the area of circle O below. Using A = πr2,
Area of a Circle formula = Πr 2. radius r: Result window. Download: Use this area calculator offline with our all-in-one calculator app for Android and iOS. Select a different shape: This is a free online tool by EverydayCalculation.com to calculate area of a Circle.
There are three primary methods to calculate the area of a circle, and each method can be useful depending on the information you have. Method 1: Given Radius. Based on the radius, the formula for the area of a circle is. A = π * R2. Where: A is the area of the circle. π (pi) is approximately 3.14159 (a mathematical constant).
