Conversions

Length

1 in = 2.54 cm (exact)

1 Å = 1×10–10 m

1 mi = 5280 ft

1 mi = 1609.3 m

1 ft = 0.3048 m

1 m = 1.094 yd

1 km = 0.621 miles(mi)

Volume

1 mL = 1 cm3

1 L = 1.0567 qt

1 gal = 3.7854 L

1 m3 = 1000 L

Mass

1 lb = 453.6 g

1 g = 6.022×1023 amu

1 kg = 2.20 lb

1 lb = 16 oz

1 oz = 28.35 g

1 ton = 2000 lb

1 metric ton = 1 Mg

Energy

1 cal = 4.184 J

1 L·atm = 101.325 J

1 eV = 1.602×10–19 J

1 J = 1 kg·m2/s2

1 J = 1 m3·Pa

1 J = 1 L·kPa

1 J = 1 C·V

Pressure

1 atm = 760 Torr

1 atm = 760 mmHg

1 atm = 101325 Pa

1 atm = 14.7 psi

1 atm = 1.01325 bar

1 bar = 100 kPa

1 Torr = 1 mmHg

Temperature

TK = TC + 273.15

TC = (5/9)(TF – 32)

TF = 32 + (9/5)TC