Length
Temperature
Pressure
Mass
Area
Volume
Quick Reference
1 in = 25.4 mm1 ft = 304.8 mm1 mil = 0.0254 mm0°C = 32°F = 273.15K1 bar = 14.504 PSI1 atm = 101.325 kPa1 lb = 453.59 g1 oz = 28.35 g1 gal = 3.785 L1 in² = 645.16 mm²1 in = 25.4 mm1 ft = 304.8 mm1 mil = 0.0254 mm0°C = 32°F = 273.15K1 bar = 14.504 PSI1 atm = 101.325 kPa1 lb = 453.59 g1 oz = 28.35 g1 gal = 3.785 L1 in² = 645.16 mm²