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Inches to Cm Converter.

Convert inches to cm instantly with this free calculator. 1 inch = 2.54 cm.

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Reference Table

mm	cm	m	km	in	ft	yd	mi	nmi
0.3048	0.03048	0.0003048	3.048000e-7	0.012	0.001	0.0003333333	1.893939e-7	1.645788e-7
3.048	0.3048	0.003048	0.000003048	0.12	0.01	0.0033333333	0.0000018939	0.0000016458
30.48	3.048	0.03048	0.00003048	1.2	0.1	0.0333333333	0.0000189394	0.0000164579
304.8	30.48	0.3048	0.0003048	12	1	0.3333333333	0.0001893939	0.0001645788
3048	304.8	3.048	0.003048	120	10	3.333333	0.0018939394	0.0016457883
30480	3048	30.48	0.03048	1200	100	33.333333	0.0189393939	0.0164578834
304800	30480	304.8	0.3048	12000	1000	333.333333	0.1893939394	0.1645788337

How to convert inches to cm

Formula. centimetres = inches × 2.54.

Relationship. 1 inch = 2.54 cm.

Worked example. 12 in = 30.48 cm.

inches to cm conversion table

in	cm
0.5	1.27
1	2.54
1.5	3.81
2	5.08
2.5	6.35
3	7.62
4	10.16
5	12.7
6	15.24
7	17.78
8	20.32
9	22.86
10	25.4
11	27.94
12	30.48
15	38.1
18	45.72
20	50.8
24	60.96
30	76.2
36	91.44
40	101.6
48	121.92
60	152.4
72	182.88

FAQ

Frequently Asked Questions

How do I convert inches to centimetres?

Multiply the inch value by 2.54. For example, 12 inches (one foot) × 2.54 = 30.48 cm.

How many cm is 5 feet 6 inches?

5 ft 6 in is 66 inches, so 66 × 2.54 = 167.64 cm. Multiply total inches, not feet and inches separately.

What is 1 inch in cm?

Exactly 2.54 cm — this is a defined value, not a rounded approximation, so it is the same worldwide.

Why convert inches to centimetres?

Most of the world uses the metric system, so screen sizes, clothing, furniture and craft patterns quoted in inches often need converting to cm to compare with local measurements.

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