| LENGTH CONVERTER | |
|---|---|
| 1in = 25.4mm | 1mm = 0.039in |
| 1ft = 30.5cm | 1cm = 0.033ft |
| 1yd = 0.914m | 1m = 1.094yd |
| 1mi = 1.61km | 1km = 0.62mi |
| AREA | |
|---|---|
| 1in2 = 645mm2 | 1mm2 = 0.002in2 |
| 1in2 = 6.45cm2 | 1cm2 = 0.155in2 |
| 1ft2 = 929cm2 | 1cm2 = 0.00107ft2 |
| 1yd2 = 0.836m2 | 1m2 = 1.2yd2 |
| 1ac2 = 0.405ha2 | 1ha2 = 2.47ac2 |
| 1mi2 = 2.59km2 | 1km2 = 0.387mi2 |
| PRESSURE | |
|---|---|
| 1psi = 6.9kpa | 1kpa = 0.145psi |
| 1in of water = 249kpa | 1pa = 0.004in water |
| 1ft of water = 0.433psi | 1psi = 2.31ft of water |
| 1ft of water = 0.305m of water | 1m of water = 3.28ft of water |
| 1kg f/sq cm = 98kpa | 1kpa = 0.01kg f/sq cm |
| 1bar = 100kpa | 1kpa = 0.01bar |
| 1bar = 10m head | - |
| VELOCITY | |
|---|---|
| 1ft/s = 0.305m/s | 1m/s = 0.039in |
| 1m/s = 3.6km/h | 1km/h = 0.033ft |
| 1mi/h = 1.6093 km/h | 1km/h = 0.6214mi/h |
| LIQUID MEASURE | |
|---|---|
| 1 imp gal = 0.00455 m3 | 1 m3 = 220 imp gal |
| 1 US gal = 0.00378 m3 | 1 m3 = 264.2 US gal |
| 1 imp gal = 1.201 US gal | 1 US gal = 0.8327 imp gal |
| 1 US bbl = 34.97 imp gal / 42 US gal / 0.159 m3 | - |
| VOLUME | |
|---|---|
| 1in3 = 16.38cm3 | 1cm3 = 0.061in3 |
| 1ft3 = 0.028m3 | 1 m3 = 35.31ft3 |
| 1yd3 = 0.7646m3 | 1m3 = 1.307yd3 |
| 1m3 of water = 1kl of water | - |
| 1kl = 1000ltrs | - |
| 1t of water = 1m3 | - |
| FORCE | |
|---|---|
| 1lb force = 4.4448n | 1n = 0.2249lb force |
| 1ft/lb = 1.3557nm | 1nm = 0.737lb force |
| FLOW RATE | |
|---|---|
| 1ft3/min = 0.472L/sec | 1L/sec = 2.1189 cubic ft3/min |
| 1ft3/min = 0.0283m/min | 1m3/min = 35.31 cubic ft3/min |
| 1 imp gal/min = 0.076L/sec | 1L/s = 13.2 imp gal/min |
| 1 US gal/min = 0.063L/sec | 1L/s = 15.85 US gal/min |
| 1 imp gal/min = 0.2728 cubic metre/hr | 1m3/hr = 3.666 imp gal/min |
| 1 US gal/min = 0.2271 cubic metre/hr | 1m3/hr = 4.403 US gal/min |
| 1L/s = 543.439 barrels/day | 1bbl/day = 0.002 litres/sec |
| PRESSURE |
|---|
| CËš = F° minus 32 divide by 1.8 |
| FËš = C° multiply by 1.8 and add 32 |
| KËš = C° + 273.15 |
| POWER |
|---|
| 1 horsepower = 550 ft lbs/sec |
| 1 horsepower = 0.7457 kilowatts |
| 1 kilowatt = 1.341 horsepower |
| EQUIVALENTS TO 1 ATMOSPHERE |
|---|
| 76 centimetres (760mm) of mercury |
| 33.899 feet of water |
| 29.921 inches of mercury |
| 10.3322 metres of water |
| 406.782 inches of water |
| 14.696 psi |
| 101.325 kilopascal |
| ELECTRIC MOTOR POLE SPEEDS | ||
|---|---|---|
| POLES | 50 HZ | 60 HZ |
| 2 | 3000 | 3600 |
| 4 | 1500 | 1800 |
| 6 | 1000 | 1200 |
| 8 | 750 | 900 |
| 10 | 600 | 720 |
| 12 | 500 | 600 |
| HORSEPOWER TO TORQUE |
|---|
| Horsepower = Torque ft/lb rpm divide by 5252 |
| Torque (ft / lb) = Horsepower x 5252 divide by rpm |
| Torque (in / lb) = Horsepower x 63025 divide by rpm |