| LENGTH | |
| inches to centimeters: | 1 in = 2.54 cm |
| 1 cm = 0.3937 in | |
| meters to feet: | 1 m = 39.37 in = 3.281 ft |
| 1 ft = 12 in = 0.305 m | |
| kilometers to miles: | 1 km = 0.621 mi |
| 1 mi = 1.61 km | |
| MASS | |
| slugs to kilograms: | 1 slug = 14.59 kg |
| 1 kg = 0.0685 slug | |
| VELOCITY | |
| meters per second to miles per hour: | 1 m/s = 2.237 mph |
| 1 mph = 0.447 m/s | |
| miles per hour to feet per second: | 1 mph = 1.467 ft/s |
| 1 ft/s = 0.682 mph | |
| FORCE | |
| Newtons to pounds: | 1 N = 0.2248 lb |
| 1 lb = 4.448 N | |
| PRESSURE | |
| Pascals to pounds per square inch: | 1 Pa = 1 N/m2 = 0.000145 lb/in2 (psi) |
| 1 lb/in2 = 689.655 N/m2 = 689.655 Pa | |
| VOLUME | |
| cubic meters to cubic feet: | 1 m3 = 35.32 ft3 |
| 1 ft3 = 0.0283 m3 | |
| liters to cubic feet: | 1 L = 0.000999 m3 = 0.0353 ft3 |
| 1 ft3 = 0.0283 m3 = 28.33 L | |
| U.S. gallons to liters: | 1 U.S. gal = 3.786 L |
| 1 L = 0.264 U.S. gal | |
| WORK | |
| foot pounds to Joules: | 1 ft lb = 1.3558 N m = 1.3558 J |
| 1 J = 1 N m = 0.7376 ft lb | |
| POWER | |
| Watts to horsepower: | 1 W = 0.00134 hp |
| 1 hp = 745.7 W | |
| foot pounds/second to horsepower: | 1 ft lb/s = 0.00182 hp |
| 1 hp = 550 ft lb/s | |
| Watts to foot pounds/second: | 1 W = 0.7373 ft lb/s |
| 1 ft lb/s = 1.3564 W | |