Inches To Millimeters (mm)- How many millimeters in an inch ?

Inches to millimeters (mm) conversion table shows the most common values for the quick reference. Alternatively, you may use the converter below to convert any other values if wondering how many millimeters in an inch.

1 Inch = 25.4 Millimeters

Inch is a unit of length in different types of systems such as imperial and us customary and widely used daily. The abbreviation is "in" and also the symbol is a double prime ( " ).

Millimeter is a metric length unit and equal to one thousandth of a meter. Spelled as millimetre in most of the countries. Used widely to measure small distances in engineering and machining. The abbreviation is "mm".

For other length unit conversions, please go to Length Conversion

Converter

Enter a value that you want to convert into millimeters and click on the "convert" button.

Conversion Table

inch	mm	inch	mm	inch	mm	inch	mm
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 Conversion

How many millimeters in an inch ?

Conversion Table