Sphere radius to volume calculator Sphere radius to surface area calculatorContents User GuideThis tool will calculate the area of a circle from the radius, and will convert different measurement units for radius and area.FormulaThe formula used to calculate circle area is:A...
The area of a circle having a radius ‘r’ (The distance from the centre to a point on the boundary) is given by πr2where π = $\frac{22}{7}$ or 3.14 (approx.) Let us understand it through an example. Suppose we have a circle that has a radius of 7 cm. Its area will be...
See How to Calculate the Area below, but first the calculator:The CalculatorEnter the radius, diameter, circumference or area of a Circle to find the other three. The calculations are done "live":How to Calculate the AreaThe area of a circle is:...
Circle Area = π× r2 r = radius Ellipse Area = πab Sector Area = ½ × r2×θ r = radiusθ = angle in radians Note: h is at right angles to b Example: What is the area of this rectangle? The formula is: Area = w × h w = width h = height We know w = 5 an...
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 ◔ We'll give you a tour of ...
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.
There are a few ways to find the area of a circle. The first way tocalculate areais 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. ...
Area Calculator Area of quadrilateral Area of a circle and fan shape ･Area of a circleCalculate the area of the circle and the perimeter from the radius. ･Area of fan shapeCalculate the area of the sector, the length of the arc, and the length of the chord from the radius and ...
Area of a Circle Calculator Our Area of a Circle Calculator will find the area of any circle, if you type in a radius or diameter. It will take whole numbers, fractions or decimal values. The best thing about it is that it shows the working out, step-by-step. ...
How to Calculate the Area of a Circle You can find the area of a circle using acalculator, or you can use the circle area formula: A = πr² The areaAis equal to pi times the radiusrsquared. How to Find the Circumference