Appendix D: Unit Conversions from SI System to English System

The following are useful when converting from the SI system to the English system:

Length:1 m = 100 cm = 39.7 in.
 1 m = 3.28 ft
 1 m = 6.22 × 10−-4 mile
Area:1 m2 = 0.386 × 10−-6 mile2
 1 m2 = 1550 in.2
 1 cm2 = 0.155 in.2
Volume:1 m3 = 35.3 ft3
Linear speed:1 m/s = 100 cm/s = 3.28 ft/s
 1 m/s = 2.237 mph
 1 m/s = 39.37 in./s
Rotational speed:1 rad/s = 9.55 rev/min = 57.3 deg/s
Force:1 N = 0.225 lb
Power:1 kW = 1000 W = 1.34 hp
Torque:1 N-m = 0.737 lb
Magnetic flux:1 Wb = 108 lines = 108 maxwells
 1 Wb = 105 kilolines
Magnetic flux density:1 T = 6.45 × 104/line/in2
1 T = 64.5 kilolines/in ...

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