Circle Calculator

Use this online calculator to calculate the properties of a circle.

  1. Enter any known dimension of a circle see the corresponding measurements
Circle Calculator

Circle Calculator

The circle calculator will automatically calculate all mathematical variants of a circle simply by entering one of the circle elements.

Simply enter the radius or circumference or diameter to calculate the area and spherical area of a circle. Each circle factor will calculate its corresponding mathematical relation.

Math Calculators

You may also find the following Math calculators useful.