Inches to MM Conversion - How many millimeters in an inch ?

You may use this length conversion chart if you are converting inches (in) to millimeters (mm) for the values listed in the table below.

Inch is an imperial length unit. Millimeter is a metric length unit. There are 25.4 millimeters in an inch.

1 Inch = 25.4 Millimeters

To convert inches to mm for any other values, please go to Length Conversions

Inches To Millimeters Chart

Inch	Millimeter	Inch	Millimeter	Inch	Millimeter	Inch	Millimeter
1	25.4	26	660.4	51	1295.4	76	1930.4
2	50.8	27	685.8	52	1320.8	77	1955.8
3	76.2	28	711.2	53	1346.2	78	1981.2
4	101.6	29	736.6	54	1371.6	79	2006.6
5	127	30	762	55	1397	80	2032
6	152.4	31	787.4	56	1422.4	81	2057.4
7	177.8	32	812.8	57	1447.8	82	2082.8
8	203.2	33	838.2	58	1473.2	83	2108.2
9	228.6	34	863.6	59	1498.6	84	2133.6
10	254	35	889	60	1524	85	2159
11	279.4	36	914.4	61	1549.4	86	2184.4
12	304.8	37	939.8	62	1574.8	87	2209.8
13	330.2	38	965.2	63	1600.2	88	2235.2
14	355.6	39	990.6	64	1625.6	89	2260.6
15	381	40	1016	65	1651	90	2286
16	406.4	41	1041.4	66	1676.4	100	2540
17	431.8	42	1066.8	67	1701.8	125	3175
18	457.2	43	1092.2	68	1727.2	150	3810
19	482.6	44	1117.6	69	1752.6	175	4445
20	508	45	1143	70	1778	200	5080
21	533.4	46	1168.4	71	1803.4	250	6350
22	558.8	47	1193.8	72	1828.8	300	7620
23	584.2	48	1219.2	73	1854.2	500	12700
24	609.6	49	1244.6	74	1879.6	750	19050
25	635	50	1270	75	1905	1000	25400

Inches To Millimeters (mm) Conversion

How many millimeters in an inch ?

Inches To Millimeters Chart

Conversions