Created By : Abhinandan Kumar

Reviewed By : Rajashekhar Valipishetty

Last Updated : May 30, 2023


Enter the Radius


Circumference of a circle radius 4 inches is 25.12 inches.

Circumference of a circle is the length of the boundary of the circle. If we cut open the circle and straighten it the length of the boundary will be the measure of the circumference of the circle. Circumference of a circle radius 4 inches is 25.12 inches.


    Circumference of Circle 4 in in other units

Value unit
0.000638 km
0.0003965 mi
0.638048 m
2.0933333 ft
25.12 in
0.6977778 yd
63.8048 cm
638.048 mm

Circumference of a Circle side 4 in is 25.12 in

Steps:

Given that Radius, r = 4 in

We know that, Circumference of a circle= 2πr

Put the value of radius value in Circumference Formula.

Circumference = 2π x 4 in

Substituting the value of π

Circumference = 2 x 3.14 x 4

Circumference = 25.12 in

∴ Circumference of a Circle side 4 in is 25.12 in