inch/metric conversion table
Inch/metric Coversion Table
Conversion Factors for The U.S. Customary System (USCS) and The International System of Units (SI)
Fraction |
Inch
Decimal |
mm |
|
0.00004 |
0.001 |
|
0.00039 |
0.01 |
|
0.0010 |
0.025 |
|
0.0020 |
0.051 |
|
0.0030 |
0.0762 |
|
0.00394 |
0.1 |
|
0.0050 |
0.1270 |
|
0.00984 |
0.25 |
|
0.0100 |
0.254 |
1/64 |
0.0156 |
0.396 |
1/32 |
0.0312 |
0.793 |
|
0.03937 |
1. |
3/64 |
0.0469 |
1.191 |
|
0.0591 |
1.5 |
1/16 |
0.0625 |
1.5875 |
5/64 |
0.0781 |
1.984 |
|
0.0787 |
2. |
3/32 |
0.0937 |
2.381 |
|
0.0984 |
2.5 |
|
0.1000 |
2.54 |
7/64 |
0.1094 |
2.778 |
|
0.1181 |
3. |
1/8 |
0.1250 |
3.175 |
|
0.1378 |
3.5 |
9/64 |
0.1406 |
3.571 |
5/32 |
0.1562 |
3.968 |
|
0.1575 |
4. |
11/64 |
0.1719 |
4.366 |
|
0.1772 |
4.5 |
3/16 |
0.1875 |
4.7625 |
|
0.1969 |
5. |
13/64 |
0.2031 |
5.159 |
7/32 |
0.2187 |
5.556 |
15/64 |
0.2344 |
5.953 |
|
0.2362 |
6. |
1/4 |
0.2500 |
6.35 |
17/64 |
0.2656 |
6.746 |
|
0.2756 |
7. |
9/32 |
0.2812 |
7.1437 |
19/64 |
0.2969 |
7.5406 |
5/16 |
0.3125 |
7.9375 |
|
0.3150 |
8. |
21/64 |
0.3281 |
8.334 |
11/32 |
0.3437 |
8.731 |
|
0.3543 |
9. |
23/64 |
0.3594 |
9.1281 |
3/8 |
0.3750 |
9.525 |
25/64 |
0.3906 |
9.9219 |
|
0.3937 |
10. |
13/32 |
0.4062 |
10.318 |
27/64 |
0.4219 |
10.716 |
|
0.4331 |
11. |
7/16 |
0.4375 |
11.1125 |
29/64 |
0.4531 |
11.509 |
15/32 |
0.4687 |
11.906 |
|
0.4724 |
12. |
31/64 |
0.4844 |
12.303 |
1/2 |
0.5000 |
12.7 |
|
0.5118 |
13. |
33/64 |
0.5156 |
13.096 |
17/32 |
0.5312 |
13.493 |
35/64 |
0.5469 |
13.891 |
|
0.5512 |
14. |
9/16 |
0.5625 |
14.2875 |
37/64 |
0.5781 |
14.684 |
|
0.5906 |
15. |
19/32 |
0.5937 |
15.081 |
39/64 |
0.6094 |
15.478 |
5/8 |
0.6250 |
15.875 |
|
0.6299 |
16. |
41/64 |
0.6406 |
16.271 |
21/32 |
0.6562 |
16.668 |
|
0.6693 |
17. |
43/64 |
0.6719 |
17.066 |
11/16 |
0.6875 |
17.4625 |
45/64 |
0.7031 |
17.859 |
|
0.7086 |
18. |
23/32 |
0.7187 |
18.256 |
47/64 |
0.7344 |
18.653 |
|
0.7480 |
19. |
3/4 |
0.7500 |
19.05 |
49/64 |
0.7656 |
19.446 |
25/32 |
0.7812 |
19.843 |
|
0.7874 |
20. |
51/64 |
0.7969 |
20.240 |
13/16 |
0.8125 |
20.6375 |
|
0.8268 |
21. |
53/64 |
0.8281 |
21.034 |
27/32 |
0.8437 |
21.431 |
55/64 |
0.8594 |
21.828 |
|
0.8661 |
22. |
7/8 |
0.8750 |
22.225 |
57/64 |
0.8906 |
22.621 |
|
0.9055 |
23. |
29/32 |
0.9062 |
23.018 |
59/64 |
0.9219 |
23.416 |
15/16 |
0.9375 |
23.8125 |
|
0.9449 |
24. |
61/64 |
0.9531 |
24.209 |
31/32 |
0.9687 |
24.606 |
|
0.9843 |
25. |
63/64 |
0.9844 |
25.003 |
1 |
1.0000 |
25.4 |
|
1.0630 |
27. |
|
1.1024 |
28. |
|
1.1811 |
30. |
1 1/4 |
1.2500 |
31.75 |
|
1.2992 |
33. |
|
1.3780 |
35. |
|
1.4173 |
36. |
1 1/2 |
1.5000 |
38.1 |
|
1.5354 |
39. |
|
1.5748 |
40. |
|
1.6535 |
42. |
1 3/4 |
1.7500 |
44.45 |
|
1.7717 |
45. |
|
1.8898 |
48. |
|
1.9685 |
50. |
2 |
2.000 |
50.8 |
|
2.0472 |
52. |
|
2.1654 |
55. |
|
2.2047 |
56. |
2 1/4 |
2.2500 |
57.15 |
|
2.3622 |
60. |
2 1/2 |
2.5000 |
63.5 |
|
2.5197 |
64. |
2 3/4 |
2.7500 |
69.85 |
|
2.8346 |
72. |
|
2.9528 |
75. |
3 |
3.0000 |
76.2 |
|
3.1496 |
80. |
3 1/4 |
3.2500 |
82.55 |
3 1/2 |
3.5000 |
88.9 |
|
3.5433 |
90. |
3 3/4 |
3.7500 |
95.25 |
|
3.9370 |
100. |
4 |
4.0000 |
101.6 |
4 1/4 |
4.2500 |
107.95 |
|
4.3307 |
110. |
4 1/2 |
4.5000 |
114.3 |
|
4.7244 |
120. |
4 3/4 |
4.7500 |
120.65 |
5 |
5.0000 |
127. |
5 1/2 |
5.5000 |
139.7 |
Conversion Factors for The U.S. Customary System (USCS) and The International System of Units (SI)
|
USCS to SI |
SI to USCS |
| Length |
1 in = 25.4 mm |
1mm = 0.0393701 in |
| Surface Texture |
1µ in = 0.0254 um |
1µm = 39.3701 µ in |
| Area |
1 in2 = 645.16 mm2 |
1mm2 = 0.00155 in2 |
| Volume |
1 in3 = 16.3871 cm3 |
1cm3 = 0.0610237 in3 |
| Mass |
1 lb = 0.45359 kg |
1 kg = 2.20462 lb |
|
1 oz = 28.3495 g |
1g = 0.035274 oz
|
| Density |
1lb/in3 = 27.6799 g/cm3 |
1 g/cm3 = 0.036 lb/in3 |
| Force |
1 lbf = 4.44822 N |
1N = 0.224809 lbf |
| Moment of Force (Torque) |
1 lbf in = 0.112985 Nm |
1Nm = 8.85 lbf in |
| Stress |
1 lbf/in2 = 0.00689 N/mm2 |
1 N/mm2 = 145.038 lbf/in2 |
|
