cCalmCalc
MATH

Circle Calculator

Solve Circle with a transparent method.

Which circle measurement is known?Enter one measurement to solve radius, diameter, circumference, and area.
4 options
AREA78.53981634 m²

Radius: Derives the radius from the selected known measurement, then reports radius, diameter, circumference, and area.

Radius
5
Diameter
10
Circumference
31.41592654
Area
78.53981634
Estimate based on the values shown
Formula checkedDerives the radius from the selected known measurement, then reports radius, diameter, circumference, and area.