Metric Conversions


Fractions of inches given in millimeters and centimeters and millimeter sizes with their equivalent in inches.

 

1 inch = 25.4 millimeters

 

1 inch = 2.54 centimeters

 

1 ounce = 28.3 grams

 

50 grams = 1-3/4 ounces

 

1 pound = 454 grams

 

500 grams (1/2 kilogram) = 1.1 pound

 

1000 grams (1 kilogram) = 2.2 pounds

Inches to Millimeters Conversion

Inches Millimeters
1/32 0.79
1/16 1.59
3/32 2.38
1/8 3.18
5/32 3.97
3/16 4.76
7/32 5.56
1/4 6.35
9/32 7.14
5/16 7.94
11/32 8.73
3/8 9.53
13/32 10.32
7/16 11.11
15/32 11.91
1/2 12.70
17/32 13.49
9/16 14.29
19/32 15.08
5/8 15.88
21/32 16.67
11/16 17.46
23/32 18.26
3/4 19.05
25/32 19.84
13/16 20.64
27/32 21.43
7/8 22.23
29/32 23.02
15/16 23.81
31/32 24.61
1 25.40

Millimeters to Inches Conversion

Size in mm Closest Equivalent in Inches
1mm just over 1/32 of an inch
2mm just over 1/16 of an inch
3mm 1/8
4mm 5/32
5mm 3/16
6mm 1/4
7mm 9/32
8mm 5/16
9mm 11/32
10mm 3/8
11mm 7/16
12mm 15/32
13mm 1/2
14mm 9/16
15mm 19/32
16mm 5/8
17mm 11/16
18mm 23/32
19mm 3/4
20mm 13/16
Inches to Centimeters Conversion

Inches Centimeters
1/8 0.3175
1/4 0.635
3/8 0.9525
1/2 1.27
5/8 1.5875
3/4 1.905
7/8 2.2225
1 2.54
1-1/8 2.8575
1-1/4 3.175
1-3/8 3.4925
1-1/2 3.81
1-5/8 4.1275
1-3/4 4.445
1-7/8 4.7625
2 5.08
2-1/8 5.3975
2-1/4 5.715
2-3/8 6.0325
2-1/2 6.35
2-5/8 6.6675
2-3/4 6.985
2-7/8 7.3025
3 7.62
3-1/8 7.9375
3-1/4 8-1/45
3-3/8 8.255
3-1/2 8.89
3-5/8 9.2075
3-3/4 9.525
3-7/8 9.8425
4 10.16
4-1/8 10.4775
4-1/4 10.795
4-3/8 11.1125
4-1/2 11.43
4-5/8 11.7475
4-3/4 12.065
4-7/8 12.3825
5 12.7
5-1/8 13.0175
5-1/4 13.335
5-3/8 13.6525
5-1/2 13.97
5-5/8 14.2875
5-3/4 14.605
5-7/8 14.9225
6 15.24
6-1/8 15.5575
6-1/4 15.875
6-3/8 16.1925
6-1/2 16.51
6-5/8 16.8275
6-3/4 17.145
6-7/8 17.4625
7 17.78
7-1/8 18.0975
7-1/4 18.415
7-3/8 18.7325
7-1/2 19.05
7-5/8 19.3675
7-3/4 19.685
7-7/8 20.0025
8 20.32
8-1/8 20.6375
8-1/4 20.955
8-3/8 21.2725
8-1/2 21.59
8-5/8 21.9075
8-3/4 22.225
8-7/8 22.5425
9 22.86
9-1/8 23.1775
9-1/4 23.495
9-3/8 23.8125
9-1/2 24.13
9-5/8 24.4475
9-3/4 24.765
9-7/8 25.0825
10 25.4
10-1/8 25.7175
10-1/4 26.035
10-3/8 26.3525
10-1/2 26.67
10-5/8 26.9875
10-3/4 27.305
10-7/8 27.6225
11 27.94
11-1/8 28.2575
11-1/4 28.575
11-3/8 28.8925
11-1/2 29.21
11-5/8 29.5275
11-3/4 29.845
11-7/8 30.1625
12 30.48
12-1/8 30.7975
12-1/4 31.115
12-3/8 31.4325
12-1/2 31.75
12-5/8 32.0675
12-3/4 32.385
12-7/8 32.7025
13 33.02
13-1/8 33.3375
13-1/4 33.655
13-3/8 33.9725
13.5 34.29
13-5/8 34.6075
13-3/4 34.925
13-7/8 35.2425
14 35.56