| | To Convert From | To | Multiply By |
| Length | miles (mi) | meters (m) | 1609.3 |
| | feet (ft) | meters (m) | .3048 |
| | inches (in) | meters (m) | .0254 |
| | | | |
| Area | square feet (ft2) | square meters (m2) | 9.29 x 10–2 |
| | square inches (in2) | square meters (m2) | 6.452 x 10–4 |
| | | | |
| Volume | cubic feet (ft3) | cubic meters (m3) | .0283 |
| | fluid ounces — US (fl oz) | cubic meters (m3) | 2.957 x 10–5 |
| | gallons — US (gal) | cubic meters (m3) | 3.785 x 10–3 |
| | | | |
| Volume per
Unit Time | ft3/min | m3/s | 4.719 x 10–4 |
| | in3/min | m3/s | 2.732 x 10–7 |
| | | | |
| Mass | ounces (oz) | kilograms (kg) | .0283 |
| | pounds (lb) | kilograms (kg) | .4536 |
| | ton-short (2000lb) (T) | kilograms (kg) | 907.185 |
| | | | |
| Mass per
Unit Area | oz/ft2 | kg/m2 | .3052 |
| | | | |
| Mass per
Unit Time | lb/h | kg/s | 1.26 x 10–4 |
| | | | |
| Mass per
Unit Volume | g/cm3 | kg/m3 | 1000 |
| | oz(avoirdupois)/in3 | kg/m3 | 1730 |
| | lb/in3 | kg/m3 | 2.768 x 104 |
| | lb/ft3 | kg/m3 | 16.018 |
| | | | |
| Volume per
Unit Time | ft3/min | m3/s | 4.719 x 10–4 |
| | in3/min | m3/s | 2.732 x 10–7 |
| | gal/min | m3/s | 6.309 x 10–5 |
| | | | |
| Velocity | ft/min | m/s | 5.08 x 10–3 |
| | in/s | m/s | .0254 |
| | mi/h | m/s | .447 |
| | | | |
| Viscosity | poise (P) | pascal-second (Pa•s) | .1 |
| | stokes (St) | m2/s | 10–4 |
| | | | |
| Force | dyne | Newton (N) | 10–5 |
| | kgf | Newton (N) | 9.807 |
| | lbf | Newton (N) | 4.448 |
| | | | |
| Force per
Unit Length | lbf /ft | N/m | 14.594 |
| | | | |
| Stress per
Unit Area | Atmosphere (standard) | Pa | 1.0133 x 105 |
| | torr (mm Hg 0°C) | Pa | 133.32 |
| | inches of Hg (60°F) | Pa | 3376.9 |
| | inches of H2O (60°F) | Pa | 248.84 |
| | lbf /in2 | Pa | 6894.8 |
| | centimeters of Hg (0°C) | Pa | 1333.2 |
| | kgf /cm2 | Pa | 9.807 x 104 |
| | | | |
| Energy | Btu (International) | Joule (J) | 1055.06 |
| | ft•lbf | Joule (J) | 1.356 |
| | Kilowatt hour (kW•h) | Joule (J) | 3.6 x 106 |
| | calorie (cal)(International) | Joule (J) | 4.1868 |
| | | | |
| Energy per
Unit Area Time | Btu(International)/(ft2•s) | W/m2 | 1.136 x 104 |
| | erg/(cm2•s) | W/m2 | 10-3 |
| | | | |
| Heat | Btu(Int'l)•in/(hr•ft2•°F) | W/(m•°K) | .144 |
| | Btu(Int'l)•in/(s•ft2•°F) | W/(m•°K) | 519.22 |
| | cal(Int'l)/g | J/kg | 4186.8 |
| | Btu(Int'l)/(lb•°F) | J/(kg•°K) | 4186.8 |
| | cal(Int'l)/(g•°C) | J/(kg•°K) | 4186.8 |
| | | | |
| Power | Btu(Int'l)/s | W | 1055.1 |
| | cal (Int'l)/s | W | 4.187 |
| | erg/s | W | 10-7 |
| | ft•lbf /s | W | 1.356 |
| | Horsepower (hp) 550 ft•lb/s | W | 745.7 |
| | | | |
| Temperature | °C | °K | Tk=Tc + 273.15 |
| | °F | °C | Tc=(Tf – 32)/1.8 |
| | | | |
| Light | cd/in2 | cd/m2
(candela/sq. meter) | 1550 |
| | | | |
