| Conversion
Factors For Commonly Used Units |
| |
Imperial |
SI Metric |
From Imperial To
SI Metric Multiply by |
From SI Metric to
Imperial Multiply by |
| Linear Measurement |
Inch
Mil
Ft.
Yd.
Mile |
Mm (millimetre)
m (micrometre)
m (metre)
m
km (kilometre) |
25.4
25.4
0.304 8
0.914 4
1.609 34 |
0.039 37
0.039 37
3.280 84
1.093 61
0.621 37 |
| Area |
Sq. inch
Sq. inch
Sq. ft.
Sq. yd. |
Mm2
Cm2
M2
M2 |
645.16
6.451 6
0.092 903
0.836 13 |
0.01 55
0.155 00
10.763 91
1.195 99 |
| Volume And Liquid Capacity |
Cu. Inch
Cu.ft.
Cu.yd.
Fluid oz. (lmp.)
gallon (lmp)
Gallon (US) |
Cm3
M3
M3
Ml (millilitre)
L (litre) L |
16.387 06
0.028 37
0.764 55
28.413 06
4.546 09
3.785 41 |
0.061 024
35.314 67
1.307 95
0.035 195
0.219 97
0.264 17 |
| Weight (mass)… |
Oz
Ib.
Ton (Short) |
G (gram)
Kg (kilogram)
T (tonne) |
28.349 52
0.453 59
0.907 18 |
0.035 274
2.204 62
1.102 31 |
| Weight per unit length |
Ib./ft. |
Kg/m |
1.488 16 |
0.671 97 |
| Coating weight |
Oz.sq. ft. |
G/m2 |
305. 152 |
0.003 277 |
| Force |
Pound-force
Kip |
N (newton)
Kn (kilonewton) |
4.448 22
4.448 22 |
0.224 81
0.224 81 |
| Pressure And stress*** |
Psi
Ksi |
Mpa (megapascal) |
0.006 8948 6.894 76 |
145.039 0.145 04 |
| Pressure and stress*** |
Psi
Ksi |
Kgf/mm2
Kgf/mm2 |
0.000 7031
0.703 1 |
1422.347
1.422 347 |
| Torque and bending |
Ib.in. |
n.m. (Newton metre) |
0.112 99 |
8.850 75 |
| Moment |
Ib. ft. |
n.m. |
1.355 82 |
0.737 56 |
| Energy |
Ft. lb. |
J (Joule) |
1.355 82 |
0.737 56 |
| Temperature |
0F |
0C |
5/9 (0F-32) |
9/50C+32 |
