# Circumference

- Circumference of a Circle - The circumference of a circle is calculated by multiplying its radius by 2 and then by π. This calculator helps find the circumference.
- Circumference of a Circle from Diameter - The circumference of a circle is calculated by multiplying the diameter with π. This calculator helps find the circumference from the diameter.
- Circumference of a Sphere - The circumference of a sphere is calculated by multiplying the value of π with the diameter of the sphere. This calculator helps find the circumference.