more handy stuff
| Quantity | Unit | Conversion | ||
|---|---|---|---|---|
| US | Metric | SI | ||
| Length |
Inch -- in Foot -- ft (12 in) Mile -- mi (5280 ft) |
Millimeter -- mm (10-3m) Centimeter -- cm (10-2m) Meter -- m |
Meter -- m |
1 in = 2.5400 cm 1 cm = 0.3937 in 1 m = 39.3689 in 1 m = 3.2808 ft 1 ft = 0.3048 m |
| Area |
Square inch -- in2 Square foot-- ft2 (144 in2) Acre -- 43560 ft2 (approx 210 ft square) |
Square cm -- cm2
(10-4 m2) Square meter -- m2 |
Square meter -- m2 |
1 in2 = 6.4516 cm2 1 cm2 = 0.1550 in2 1 ft2 = 0.0929 m2 1 m2 = 10.764 ft2 |
| Volume |
Ounce, fluid (US) -- oz Gallon (US) -- gal (128 oz) Cubic Foot -- ft3 |
Cubic cm -- cm3
(10-6 m3) Cubic meter -- m3 |
Cubic meter -- m3 |
1 oz = 29.5736 cm3 1 cm3 = 0.0338 oz 1 gal = 0.1337 ft3 1 ft3 = 7.4805 gal 1 m3 = 264.1721 gal 1 m3 = 35.3147 ft3 |
| Velocity |
Feet per Second -- ft/sec Miles per Hour -- MPH |
Meters per Second -- m/sec Kilometers per Hour -- KPH |
Meters per Second -- m/sec |
1 ft/sec = .3048 m/sec 1 m/sec = 3.2808 ft/sec 1 MPH = 1.6093 KPH 1 KPH = 0.6214 MPH |
| Acceleration |
Feet per sec per sec -- ft/sec2 |
Meters per sec per sec -- m/sec2 |
Meters per sec per sec -- m/sec2 |
1 ft/sec2 =
.3048 m/sec2 |
| Mass |
Ounce -- oz Pound -- lb (16 oz) Ton -- ton (2000 lbs) (...on Earth...) |
Gram -- g Kilogram -- kg (103g) |
Gram -- g |
1 oz = 28.3495 g 1 g = 0.0353 oz 1 lb = 0.4536 kg 1 kg = 2.2046 lb |
| Weight of Water | Pound -- lb | Gram -- g |
1 cm3 = 1 g 1 gal = 8.3454 lb 1 ft3 = 62.4280 lb |
|
| Force | Pound Force -- lbf |
Kilogram Force -- kgf (...on Earth...) |
Newton -- N |
1 lbf = 0.4536 kgf 1 kgf = 2.2046 lbf 1 lbf = 4.4482 N 1 kgf = 9.8067 N 1 N = 0.2248 lbf 1 N = 0.1020 kgf |
| Pressure |
Pound Force per Square Inch -- lbf/in2 -- PSI |
Kilogram Force per Square Centimeter -- kgf/cm2 |
Pascal -- N/m2 -- Pa |
1 PSI = 0.0703 kgf/cm2 1 kgf/cm2 = 14.2233 PSI 1 kgf/cm2 = 98066.5 Pa 1 atmosphere = 14.6959 PSI |
| Torque or Work |
Inch Pound -- in-lbf | Kilogram Centimeter -- kgf-cm |
Newton Meters -- N-m |
1 in-lbf = 1.15 21 kgf-cm 1 kgf-cm = 0.8679 in-lbf 1 in-lbf = 0.1130 N-m 1 N-m = 8.85 in-lbf 1 N-m = 10.1972 kgf-cm |
| Power or (Work per Time) |
Foot Pounds per Minute HorsePower -- hp |
Kilogram Meters per sec |
Newton-Meters per Second -- N-m/sec or Watt -- W |
1 W = 1 N-m/sec 1 W = 44.2537 ft-lbf/min 1 W = 0.1020 kgf-m/sec 1 hp = 33,000 ft-lbf/min 1 hp = 745.6999 W 1 hp = 76.0402 kgf-m/sec |
| Torque to Power@RPM |
HorsePower -- hp | Watt -- W | hp = (ft-lbf * RPM) / 5,252 | |