Marine Installation Manual 2022-03 9-7
9 Appendix
9.4 Approximate conversion factors
X62DF-S2.0
9.4 Approximate conversion factors
Table 9-4 Conversion factors
Length
1 in = 25.4 mm
1 ft = 12 in = 304.8 mm
1 yd = 3 feet = 914.4 mm
1 statute mile = 1760 yds = 1609.3 m
1 nautical mile = 6080 feet = 1853 m
Mass
1 oz = 0.0283 kg
1 lb = 16 oz = 0.4536 kg
1 long ton = 1016.1 kg
1 short ton = 907.2 kg
1 tonne = 1000 kg
Volume (fluids)
1 Imp. pint = 0.568 l
1 U.S. pint = 0.473 l
1 Imp. quart = 1.136 l
1 U.S. quart = 0.946 l
1 Imp. gal = 4.546 l
1 U.S. gal = 3.785 l
1 Imp. barrel = 36 Imp. gal = 163.66 l
1 barrel petroleum = 42 U.S. gal = 158.98 l
Force 1 lbf (pound force) = 4.45 N
Pressure 1 psi (lb/sq in) = 6.899 kPa (0.0689 bar)
Velocity
1 mph = 1.609 km/h
1 knot = 1.853 km/h
Acceleration 1 mphps = 0.447 m/s
2
Temperature 1 °C = 0.55 x (°F -32)
Energy
1 BTU = 1.06 kJ
1 kcal = 4.186 kJ
Power
1 kW = 1.36 bhp
1 kW = 860 kcal/h
Volume
1 in
3
= 16.4 cm
3
1 ft
3
= 0.0283 m
3
1 yd
3
= 0.7645 m
3