Metric and British units
To obtain | From | Multiply
by the following |
|
3.281 | metres (m) | feet (ft) | 0.3048 |
10.76 | square metres (m2 ) | square feet (ft 2 ) | 0.0929 |
35.32 | cubic metres (m³) | cubic feet (ft 3 ) | 0.0283 |
0.22 | litres (l) | UK gallons (UK gal) | 4.546 |
0.264 | litres (l) | US gallons (US gal) | 3.785 |
0.0353 | litres (1) | cubic (ft3) | 28.3168 |
2.205 | kilogrammes (kg) | pounds (lb) | 0.454 |
0.00142 | kilogrammes per
square metre (kg/m²) |
pounds per
square inch (lb/in2) |
703 |
0.0624 | kilogrammes per
cubic metre (kg/m³) |
pounds per cubic
foot (lb/ft3) |
16.0185 |
3.97 | kilocalories (kcal) | British thermal units (Btu) | 0.252 |
1.341 | kilowatts (kW) | horsepower (hp) (UK or US) | 0.746 |
0.00156 | kcal per hour (kcal/h) | hp | 642 |
1.163 | kcal/h x 1000 | kilowatts (kW) | 0.860 |
0.3307 | kcal/h x 1000 | ton of refrigeration (US) | 3.024 |
0.2048 | keal/m²h°C | Btu/ft 2 h°F | 4.882 |
8.064 | kcal/m h°C | Btu in/ft 2 h°F | 0.1240 |
1 | kcal/kg °C | Btu/lb °F | 1 |
1.8 | kcal/kg | Btu/lb | 0.5556 |
Multiply by the above |
To convert | To |
Metric, Imperial and SI units
The International System of Units (SI units) is now widely used and some conversions relating to the above units are given below:
To obtain | From | Multiply
by the following |
|
9.807 | kg/m² | Newtons per
square metre, Pascals (N/m²) (Pa) |
0.1020 |
0.9807 | kg/m² | milk bar (mbar) | 1.020 |
6895 | lb/in2 (psi) | Pascals (N/m²) (Pa) | 0.000145 |
0.01450 | mbar | lb/in 2 ( psi ) | 68.95 |
4.187 | kcal | kilojoules (kJ) | 0.2388 |
0.9479 | kJ | Btu | 1.055 |
1.163 | kcal x 1000 | kWh | 0.8598 |
0.2778 | MJ | kWh | 3.6 |
3.413 | W | Btu/h | 0.293 |
1.341 | kW | hp (UK & US) | 0.746 |
1.359 | kW | hp (metric) | 0.736 |
12 | ton refrigeration (US) | Btu/h x 1000 | 0.08333 |
3.517 | ton refrigeration | kW | 0.284 |
1.163 | kcal/h | W | 0.8598 |
1.163 | kcal/m²h0C | W/m² °C | 1 0.8598 |
0.317 | W/m² | Btu/ft 2 h | 3.155 |
0.1761 | W/m² °C | Btu/ft 2 h°F | 5.678 |
1.163 | kcal/m h°C | W/m °C | 0.8598 |
6.935 | W/m °C | Btu/in/ft 2 h°F | 0.1442 |
0.2388 | kcal/kg °C | kJ/kg°C | 4.187 |
0.2388 | kJ/kg °C | Btu/lb °F | 4.187 |
Multiply by the above | To convert | To |