Area and Dimensions of a Circle

Enter r, d, C or enter the Area
r
d
C


Area =  

Formulas:

A = Area
C = circumference
r = radius
d = diameter
A = pr2
A = 3.1416 * r2
A = 0.7854 * d2
C = 2pr
C = 6.2832 * r
C = 3.1416 * d
r = C ÷ 6.2832
r = sqrt (A ÷ p)
r = 0.564 * sqrt (A)
d = C ÷ 3.1416
d = sqrt (A ÷ 0.7854)
d = 1.128 * sqrt (A)

Purchase Order Terms and Conditions
© Cambelt International Corporation - Privacy Policy