How do you figure out diameter and circumference?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

Circumference is pi times diameter. Diameter is circumference divided by pi. Diameter is twice the radius. Radius is half the diameter.
6 people found this useful

Diameter to circumference?

To get a circle's circumference, multiply its diameter by π (pi), which is approximately 3.1416.