Conversion Factors

Pressure

1 atm = 760 torr
= 760 mm of Hg
= 101325 Pa
= 14.7 psi
1 bar = 100000 Pa
1 bar = .987 atm

Length

1 in = 2.54 cm
1 ft = 12 in
1 yd = 3 ft
1 mi = 5280 ft
1 Å = 10-10 m

Mass

1 pound = 453.6 g
= 0.4536 kg
= 16 oz
1 kg = 2.205 lbs
1 ton = 2000 lbs
1 metric ton = 1000 kg

Energy

1 L·atm = 101.325 J
1 cal = 4.184 J
1 eV = 1.602 × 10-19 J
1 C·V = 1 J
1 kWh = 3600 kJ

Volume

1 L = 1000 mL
= 1000 cm3
= 0.2642 gal
1 gal = 3.785 L
= 231 in3
= 128 fl oz
= 4 qts
= 8 pints
1 cup = 8 fl oz
= 1/2 pint
1 tbsp = 15 mL
1 tsp = 5 mL

Power

1 W = 1 J/s