Circumference of a 15 Centimeter Diameter Circle

What is the circumference of a circle with a diameter of 15 cm? How far around is a circle that is 15 centimeters across?

Diameter

meters

Units

Circumference of a 15cm diameter circle

results may be rounded

The circumference of a circle is pi times its diameter.

Circumference = π * Diameter

The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.

Circle Circumference by Diameter

results may be rounded

Diameter	cm	in	ft
15.0 cm	47.12	18.55	1.546
15.1 cm	47.44	18.68	1.556
15.2 cm	47.75	18.80	1.567
15.3 cm	48.07	18.92	1.577
15.4 cm	48.38	19.05	1.587
15.5 cm	48.69	19.17	1.598
15.6 cm	49.01	19.29	1.608
15.7 cm	49.32	19.42	1.618
15.8 cm	49.64	19.54	1.629
15.9 cm	49.95	19.67	1.639
16.0 cm	50.27	19.79	1.649
16.1 cm	50.58	19.91	1.659
16.2 cm	50.89	20.04	1.670
16.3 cm	51.21	20.16	1.680
16.4 cm	51.52	20.28	1.690
16.5 cm	51.84	20.41	1.701
16.6 cm	52.15	20.53	1.711
16.7 cm	52.46	20.66	1.721
16.8 cm	52.78	20.78	1.732
16.9 cm	53.09	20.90	1.742
17.0 cm	53.41	21.03	1.752
17.1 cm	53.72	21.15	1.763
17.2 cm	54.04	21.27	1.773
17.3 cm	54.35	21.40	1.783
17.4 cm	54.66	21.52	1.793

Diameter	cm	in	ft
17.5 cm	54.98	21.64	1.804
17.6 cm	55.29	21.77	1.814
17.7 cm	55.61	21.89	1.824
17.8 cm	55.92	22.02	1.835
17.9 cm	56.23	22.14	1.845
18.0 cm	56.55	22.26	1.855
18.1 cm	56.86	22.39	1.866
18.2 cm	57.18	22.51	1.876
18.3 cm	57.49	22.63	1.886
18.4 cm	57.81	22.76	1.896
18.5 cm	58.12	22.88	1.907
18.6 cm	58.43	23.01	1.917
18.7 cm	58.75	23.13	1.927
18.8 cm	59.06	23.25	1.938
18.9 cm	59.38	23.38	1.948
19.0 cm	59.69	23.50	1.958
19.1 cm	60.00	23.62	1.969
19.2 cm	60.32	23.75	1.979
19.3 cm	60.63	23.87	1.989
19.4 cm	60.95	23.99	2.000
19.5 cm	61.26	24.12	2.010
19.6 cm	61.58	24.24	2.020
19.7 cm	61.89	24.37	2.030
19.8 cm	62.20	24.49	2.041
19.9 cm	62.52	24.61	2.051