AP-1
| LENGTH | |
|---|---|
| 1 centimeter | 0.3937 inch |
| 1 inch | 2.5400 centimeters |
| 1 meter | 3.2808 feet; 1.0936 yards |
| 1 foot | 0.3048 meter |
| 1 yard | 0.9144 meter |
| 1 kilometer | 0.6214 mile (statute); 3281 feet |
| MASS | |
|---|---|
| 1 gram | 0.03527 ounce |
| 1 ounce | 28.3495 grams |
| 1 kilogram | 2.20462 pounds |
| 1 pound | 0.45359 kilogram |
| LENGTH | |
|---|---|
| 1 mile (statute) | 1.6093 kilometers |
| 1 mile (nautical) | 1.8531 kilometers |
| 1 fathom | 6 feet; 1.8288 meters |
| 1 angstrom | 10−8 centimeter |
| 1 micrometer | 0.0001 centimeter |
| PRESSURE | |
|---|---|
| 1 kilogram/square centimeter | 0.96784 atmosphere; 0.98067 bar; 14.2233 pounds/square inch |
| 1 bar | 0.98692 atmosphere; 105 pascals |
| VELOCITY | |
|---|---|
| 1 kilometer/hour | 27.78 centimeters/second |
| 1 mile/hour | 17.60 inches/second |
| ENERGY | |
|---|---|
| 1 joule | 0.239 calorie; 9.479 × 10−4 Btu |
| 1 British thermal unit (Btu) | 251.9 calories; 1054 joules |
| 1 quad | 1015 Btu |
| AREA | |
|---|---|
| 1 square centimeter | 0.1550 square inch |
| 1 square inch | 6.452 square centimeters |
| 1 square meter | 10.764 square feet; 1.1960 square yards |
| 1 square foot | 0.0929 square meter |
| 1 square kilometer | 0.3861 square mile |
| 1 square mile | 2.590 square kilometers |
| 1 acre (U.S.) | 4840 square yards |
| VOLUME | |
|---|---|
| 1 cubic centimeter | 0.0610 cubic inch |
| 1 cubic inch | 16.3872 cubic centimeters |
| 1 cubic meter | 35.314 cubic feet |
| 1 cubic foot | 0.02832 cubic meter |
| 1 cubic meter | 1.3079 cubic yards |
| 1 cubic yard | 0.7646 cubic meter |
| 1 liter | 1000 cubic centimeters; 1.0567 quarts (U.S. liquid) |
| 1 gallon (U.S. liquid) | 3.7853 liters |
| POWER | |
|---|---|
| 1 watt | 0.001341 horsepower (U.S.); 3.413 Btu/hour |
AP-2