Appendix: Units Multimedia Engineering Fluids US_to_SI SI_to_US
 Chapter 1. Basics 2. Fluid Statics 3. Kinematics 4. Laws (Integral) 5. Laws (Diff.) 6. Modeling/Similitude 7. Inviscid 8. Viscous 9. External Flow 10. Open-Channel Appendix Basic Math Units Basic Equations Water/Air Tables Sections Search eBooks Dynamics Fluids Math Mechanics Statics Thermodynamics Author(s): Chean Chin Ngo Kurt Gramoll ©Kurt Gramoll

 US to SI Area 1 in2 = 645.2 mm2 1 ft2 = 144 in2 = 0.09290 m2 Acceleration 1 ft/s2 = 0.3048 m/s2 1 g = 32.17 ft/s2 = 9.807 m/s2   (average at earth's surface) Mass 1 slug = 14.59 kg Force 1 lb = 4.448 N 1 kip = 1000 lb = 4448 N 1 ton = 2000 lb = 8896 N Power 1 ft-lb/s = 1.356 W 1 hp = 550 ft-lb/s = 746 W Time 1 min = 60 s 1 hr = 60 min = 3600 s 1 day = 24 hr = 86,400 s Density 1 slug/ft3 = 515.4 kg/m3 Temperature TF = (9/5) TC + 32 TR = TF + 459.67 (Rankine) Pressure 1 lb/in2 (psi) = 144 lb/ft2 = 6895 Pa 1 lb/ft2 = 0.006944 lb/in2 = 47.88 Pa 1 ksi = 1,000 psi = 6,895 kPa = 6.895 MPa 1 msi = 1×106 psi = 6,895 MPa = 6.895 GPa 1 atm = 14.70 psi = 760 mmHg Length 1 ft = 12 in. = 0.3048 m 1 mi = 5280 ft = 1.609 km 1 nautical mile = 6076 ft = 1.852 km Volume 1 in3 = 16,390 mm3 =1.639×10-5 m3 1 ft3 = 0.02832 m3 1 gal = 3.7854 liter = 0.1337 ft3 Velocity 1 mi/hr = 1.467 ft/s = 1.609 km/hr = 0.4470 m/s 1 knot = 1 nautical mile/hr = 1.689 ft/s = 0.5144 m/s Work/Energy 1 ft-lb = 1.356 J = 1.356 N-m Angle 1 rad = 180/π deg = 57.30 deg 1 deg = π/180 rad = 0.01745 rad 1 rev = 2π rad = 360 deg 1 rev/min (rpm) = 0.1047 rad/s