Calculate Disc/Circle measurements
Calculate the Radius, Diameter, Circumference and Surface area of a Disc/Circle.
Fill in any of the boxes below to have all the other measurements instantly calculated.
Good to know
- The measurement unit is not specified. Whether we have meters, millimeters, inches, or any other length unit, the calculation formula is the same.
- The circumference is a special case of perimeter that is used for round objects, such as discs or spheres.
Calculation and conversion tools:
international and imperial
size, perimeter, area, volume...