Unit Conversion Table:
LENGTH
1 km = 1000 m
1 m = 100 cm
1 m = 1000 mm
1 mm = 1000 µm
1 m = 3.281 ft
1 in = 2.54 cm
1 ft = 12 in
1 mi = 5280 ft
1 nautical mile = 6080 ft
MASS
1 kg = 1000 g
1 g = 1000 mg
1 mg = 1000 mcg
1 kg weighs of 2.205 lb on earth.
FORCE
1 N = 0.2248 lb
1 lb = 4.448 N
15
1 light year = 9.461 x 10 m
TIME
1 s = 1000 ms
1 min = 60 s
1 hr = 3600 s
1 day = 86,400 s
1 year = 365.24 day
PRESSURE
1 Pascal = 1 N / m
2
5
1 bar = 10 Pascals
1 psi = 6894 Pascals
1 atm = 1.012  10 Pa
1 atm = 14.7 psi
1 atm = 760 mmHg
1 mm Hg = 133.3 Pa
5
AREA
1 cm = 0.155 in
2
1 m = 10.76 ft
2
2
2
1 in = 6.452 cm
2
2
1 ft = 144 in = 0.0929 m
2
2
ENERGY
1 Kilojoules = 1000 Joules
1 Joule = 1000 mJ
1 Joule = 0.239 calories
1 calorie = 4.186 Joule
1 Btu = 1055 Joules
1 Btu = 252 calories
2
VOLUME
1 liter = 1000 ml
1 ml = 1000 µl
1 gallon = 3.788 liters
1 eV = 1.602  10
−19
J
1 kWh = 3.6  10 J
6
ANGLE
1 radian = 57.30°
1° = 0.01745 radians
1 revolution = 360° = 2  rad
POWER
1 Watt = 1 Joule / second
1 hp = 746 Watts
SPEED
1 m/s = 3.281 ft/s
1 ft/s = 0.3048 m/s
1 mile/min = 60 mi/hr = 88 ft/s
1 km/hr = 0.2778 m/s = 0.6214 mi/hr
1 mi/hr = 1.46 ft/s = 0.447 m/s = 1.609 km/hr
ACCELERATION
2
2
1 m / s = 100 cm / s = 3.281 ft / s
2
2
2
1 cm / s = 0.01 m / s = 0.03281 ft / s
2
2
1 ft / s = 0.309 m / s = 30.48 cm / s
1 mi/hr * s = 1.47 ft / s
2
2
2
MASS ENERGY EQUIVALANCE
1 kg → 8.988  10 J
1 u → 931.5 MeV
16
−9
1 eV →1.074  10 u