Calculators & Converters
    Circle
    Calculate :

    Radius :


    Area :





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    Circle Area, Circumference, Diameter & Radius Calculator

    getcalc.com's Circle Formulas & Calculator is an online basic geometry tool to calculate area, circumference, diameter & radius of a circle shape, in both US customary & metric (SI) units.

    Steps to Find Area of a Circle

    The step by step workout for how to find what is the area of a circle.Workout :
    step1 Address the formula, input parameters and values
    Radius = 5 in

    step 2 Find area of circle using radius values
    Area = πr²
    = π x (5)² in²
    = 3.1416 x 25 in²
    Area = 78.5398 in²

    Definition & Formulas

    Circle is a round plane with every point on its boundary consists of equal length from the center point. Any distance between any point on the boundary and the center is called the radius. The straight from any point to another through the the center point is called the diameter.

    circle formulas to calculate area, circumference, diameter & radius
    Formula to calculate area, circumference, diameter & radius of a circle
    getcalc.com Calculators