Conversion Table | The Bearing Company

FRACTION	DECIMAL	MM
1/32	0.031	0.79
1/16	0.062	1.59
3./32	0.094	2.38
1/8	0.125	3.18
5/32	0.156	3.97
3/16	0.187	4.76
7/32	0.219	5.55
1/4	0.25	6.35
9/32	0.281	7.14
5/16	0.312	7.94
11/32	0.343	8.73
3/8	0.375	9.53
13/32	0.406	10.32
7/16	0.437	11.11
15/32	0.469	11.91
1/2	0.5	12.7
17/31	0.531	13.49
9/16	0.562	14.29
19/32	0.594	15.08
5/8	0.625	15.88
21/32	0.656	16.67
11/16	0.687	17.46
23/32	0.719	18.26
3/4	0.75	19.05
25/32	0.781	19.84
13/16	0.812	20.64
27/32	0.844	21.43
7/8	0.875	22.23
29/32	0.906	23.02
15/16	0.937	23.81
31/32	0.969	24.61
1	1	25.4
1.1/16	1.062	26.99
1.1/8	1.125	28.58
1.3/16	1.187	30.16
1.1/4	1.25	31.75
1.5/16	1.312	33.34
1.3/8	1.375	34.93
1.7/16	1.437	36.51
1.1/2	1.5	38.1
1.9/16	1.562	39.69
1.5/8	1.625	41.28
1.11/16	1.687	42.86
1.3/4	1.75	44.45
1.13/16	1.812	46.04
1.7/8	1.875	47.63
1.15/46	1.937	49.21
2	2	50.8
2.1/8	2.125	53.98
2.1/4	2.25	57.15
2.3/8	2.375	60.33
2.1/2	2.5	63.5
2.5/8	2.625	66.68
2.3/4	2.75	69.85
2.7/8	2.875	73.03
3	3	76.2
3.1/8	3.125	79.38
3.1/4	3.25	82.55
3.3/8	3.375	85.73
3.1/2	3.5	88.9
3.5/8	3.625	92.08
3.3/4	3.75	95.25
3.7/8	3.875	98.43
4	4	101.6
4.1/8	4.125	104.78
4.1/4	4.25	107.95
4.3/8	4.375	111.13
4.1/2	4.5	114.3
4.5/8	4.625	117.48
4.3/4	4.75	120.65
4.7/8	4.875	123.83
5	5	127
5.1/8	5.125	130.18
5.1/4	5.25	133.35
5.3/8	5.375	136.53
5.1/2	5.5	139.7
5.5/8	5.625	142.88
5.3/4	5.75	146.05
5.7/8	5.875	149.23
6	6	152.4
6.1/8	6.125	155.58
6.1/4	6.25	158.75
6.3/8	6.375	161.92
6.1/2	6.5	165.1
6.5/8	6.625	168.28
6.3/4	6.75	171.45
6.7/8	6.875	174.63
7	7	177.8
7.1/8	7.125	180.98
7.1/4	7.25	184.15
7.3/8	7.375	187.33
7.1/2	7.5	190.5
7.5/8	7.625	193.68
7.3/4	7.75	196.85
7.7/8	7.875	200.03
8	8	203.2
8.1/4	8.25	209.55
8.1/2	8.5	215.9
8.3/4	8.75	222.25
9	9	228.6
9.1/4	9.25	234.95
9.1/2	9.5	241.3
9.3/4	9.75	247.65
10	10	254
10.1/4	10.25	260.35
10.1/2	10.5	266.7
10.3/4	10.75	273.05
11	11	279.4
11.1/4	11.25	285.75
11.1/2	11.5	292.1
11.3/4	11.75	298.45
12	12	304.8
12.1/4	12.25	311.15
12.1/2	12.5	317.5
12.3/4	12.75	323.85
13	13	330.2
13.1/4	13.25	336.55
13.1/2	13.5	342.9
13.3/4	13.75	349.25
14	14	355.6
14.1/4	14.25	361.95
14.1/2	14.5	368.3
14.3/4	14.75	374.65
15	15	381
15.1/4	15.25	387.35
15.1/2	15.5	393.7
15.3/4	15.75	400.05
16	16	406.4
16.1/4	16.25	412.75
16.1/2	16.5	419.1
16.3/4	16.75	425.45
17	17	431.8
17.1/4	17.25	438.15
17.1/2	17.5	444.5
17.3/4	17.75	450.85
18	18	457.2
18.1/4	18.25	463.55
18.1/2	18.5	569.9
18.3/4	18.75	476.25
19	19	482.6
19.1/4	19.25	488.95
19.1/2	19.5	495.3
19.3/4	19.75	501.65
20	20	508