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