Circle Calculator

Calculate the diameter, radius, area, and perimeter of a circle or arc.

This app offers an easy way to calculate the diameter, radius, area, and perimeter of a circle or arc by entering one value. The app has a great design and an option to switch between degrees and radians to make your workflow as efficient as possible.

You can also upgrade to the pro version. The pro version has no ads and shows the formulas used by the calculations.