Inches to CM Conversion

Instant tool for inch to centimeter conversion

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Conversion Table

The best instant online tool for inch to centimeter conversion or vice versa, free to use!

Formula for Conversion: Inches to Centimeters (cm)

Centimeters = Inches × 2.54

Why 2.54?

Since 1959, the inch has been internationally defined as exactly 2.54 centimeters (exact, no approximation).

Example:

5 inches = 5 × 2.54 = 12.7 cm
12 inches = 12 × 2.54 = 30.48 cm

For quick mental math:
→ 1 inch ≈ 2.5 cm (slightly underestimate)
→ 4 inches ≈ 10 cm (very handy!)
→ 12 inches (1 foot) = 30.48 cm

Inches to Centimeters (cm) Conversion Table (1–100 Inches)

Inches	Centimeters (cm)
1	2.54
2	5.08
3	7.62
4	10.16
5	12.70
6	15.24
7	17.78
8	20.32
9	22.86
10	25.40
11	27.94
12	30.48
13	33.02
14	35.56
15	38.10
16	40.64
17	43.18
18	45.72
19	48.26
20	50.80
21	53.34
22	55.88
23	58.42
24	60.96
25	63.50
26	66.04
27	68.58
28	71.12
29	73.66
30	76.20
31	78.74
32	81.28
33	83.82
34	86.36
35	88.90
36	91.44
37	93.98
38	96.52
39	99.06
40	101.60
41	104.14
42	106.68
43	109.22
44	111.76
45	114.30
46	116.84
47	119.38
48	121.92
49	124.46
50	127.00
51	129.54
52	132.08
53	134.62
54	137.16
55	139.70
56	142.24
57	144.78
58	147.32
59	149.86
60	152.40
61	154.94
62	157.48
63	160.02
64	162.56
65	165.10
66	167.64
67	170.18
68	172.72
69	175.26
70	177.80
71	180.34
72	182.88
73	185.42
74	187.96
75	190.50
76	193.04
77	195.58
78	198.12
79	200.66
80	203.20
81	205.74
82	208.28
83	210.82
84	213.36
85	215.90
86	218.44
87	220.98
88	223.52
89	226.06
90	228.60
91	231.14
92	233.68
93	236.22
94	238.76
95	241.30
96	243.84
97	246.38
98	248.92
99	251.46
100	254.00