Conversion Factors
Length
- 1 meter = 39.37 in.
- 1 inch = 2.54 cm
- 1 foot = 30.48 cm = 0.3048 m
- 1 nautical mile = 6076 ft
- 1 meter = 1.0936 yards
- 1 centimeter = 0.39370 inch
- 1 inch = 2.54 centimeters
- 1 Kilometer = 0.62137 mile
- 1 mile = 5280 feet = 1.6093 kilometers
- 1 angstrom = 10-10 meter
Area
- SI Unit: meter-squared (m2)
- 1 square Kilometer = 0.3861 mile2
- 1 square meter = 1.1960 inch2 = 10.763 feet2
- 1 square centimeter = 0.155 inch2
- 1 square mile = 2.590 Km2
- 1 square yard = 0.8361 m2
- 1 square foot = 0.0929 m2
- 1 square inch = 6.452 cm2
Mass
- SI Unit: Kilogram (Kg)
- 1 lbm = 453.6 g = 0.4536 kg = 7000 gr. (grain)
- 1 Kg = 1000 g = 2.204 6 lbm
- 1 slug = 1 lbf s2/ft = 32.174 lbm
- 1 US ton = 2000 lbm (also called short ton)
- 1 long ton = 2240 lbm (also called British ton)
- 1 ton = 1000 kg (also called metric ton) = 2204.6 lbm
- 1 kip = 1000 lb
- 1 Kilogram = 1000 grams = 2.2046 pounds
- 1 pound = 453.59 grams = 0.45359 Kilogram = 16 ounces
- 1 ton = 2000 pounds = 907.185 Kilograms
- 1 metric ton = 1000 Kilograms = 2204.6 pounds
- 1 amu = 1.66056 x 10-27 Kilograms
Force
- 1 lbf = 4.448 N = 4.448 x 105 dynes
- 1 lbf = 32.174 poundals = 32.174 lbm ft/s2
Gravitational Acceleration
- g = 32.2 ft/s2 = 9.81 m/s2
m/s2,the geographic latitude of the earth ellipsoid measured from the equator in degrees
Velocity
- 1 knot = 1 nautical mile/hr
- 60 mph = 88 ft/s
Density
- Water = 62.4 lbm/ft3 = 1000 kg/m3 = 1 g/cm3 = 8.33 lbm/US gal
- °API, 60° F = (141.5/SG,60°F) – 131.5
- SG, 60° F = (141.5)/(°API,60°F + 131.5)
Power
- 1 hp = 550 ft lbf/s = 33,000 ft lbf/min
- Watt (W) = Joule (J) / s
- Joule (J) = N-m
- Coulumb (C ) = Amp – second (As)