Length: Mass: Force: Velocity:
1 mile = 5280 ft 1 lbm = 0.4536 kg 1 lbf = 4.448 N 1 ft/s = 0.3048 m/s
1 in = 25.4 mm 1 slug = 14.59 kg 1 kgf = 9.807 N 1 mph = 0.447 m/s
1 mi = 1.60934
Area: Energy Pressure: Temperature:
1 ft² = 0.02832m² 1 Btu = 1.055 KJ 1 psi = 6.895 kPa ºF = ºC + 9/5 +32
1 ft∙lbf = 1.356J 1 atm = 14.7 psi
1 cal = 4.187 J 1 atm = 101.3 kPa
1 in Hg = 3.386 Pa
1 mm Hg = 133.3 Pa
