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Chapter 17
| U.S. to metric | Metric to U.S. | ||
| Inch | 2.54 centimeters. | Centimeter | 0.3937 inch. |
| Foot | 0.3048 meter. | Meter | 3.2808 feet. |
| Yard | 0.9144 meter. | Do | 1.0936 yards. |
| Mile | 1.6093 kilometers. | Kilometer | 0.6214 mile. |
| Nautical mile | 1.852 kilometers. | Do | 0.5399 nautical mile. |
| League | 5.556 kilometers. | Do | 0.1799 league. |
| Square inch | 6.452 square centimeters. | Square centimeter | 0.155 square inch. |
| Square foot | 0.0929 square meter. | Square meter | 10.7639 square feet. |
| Square yard | 0.836 square meter. | Do | 1.196 square yards. |
| Acre | 0.4047 hectare. | Hectare | 2.471 acres. |
| Square mile | 259 hectares. | Do | 0.0039 square mile. |
| Cubic inch | 16.39 cubic centimeters. | Cubic centimeter | 0.06 cubic inch. |
| Cubic foot | 0.0283 cubic meter. | Cubic meter | 35.3146 cubic feet. |
| Cubic yard | 0.7646 cubic meter. | Do | 1.3079 cubic yards. |
| Cord | 128 cubic feet. | ||
| Ounce (liquid) | 29.574 milliliters. | Milliliter | 0.0338 ounce (liquid). |
| Liter | 1.06 quarts (liquid). | ||
| Pint (liquid) | 473.176 milliliters. | ||
| Quart (liquid) | 946.35 milliliters. | ||
| Gallon (liquid) | 3.79 liters. | Do | 0.26 gallon (liquid). |
| Pint (dry) | 550.61 milliliters. | ||
| Quart (dry) | 1101 milliliters. | Do | 0.91 quart (dry). |
| Quart, imperial | 1137 milliliters. | ||
| Gallon (dry) | 4.40 liters. | Do | 0.23 gallon (dry). |
| Gallon, imperial | 4.55 liters. | ||
| Peck | 8.810 liters. | Do | 0.1135 peck. |
| Peck, imperial | 9.092 liters. | ||
| Bushel | 35.24 liters. | ||
| Bushel, imperial | 36.37 liters. | Do | 0.028 bushel. |
| Grain[1] | 64.799 milligrams. | ||
| Ounce[2] | 28.35 grams. | Gram | 0.04 ounce. |
| Ounce, troy[3] | 31.103 grams. | Do | 0.032 troy ounce. |
| Pound[2] | 0.4536 kilogram. | Kilogram | 2.20 pounds. |
| Pound, troy | 12 troy ounces. | ||
| Ton, short | 907.185 kilograms. | ||
| Do | 2,000 pounds. | ||
| Ton, metric | 1,000 kilograms. | ||
| Do | 2,204.6 pounds. | ||
| Ton, long | 1,016.047 kilograms. | ||
| Do | 2,240 pounds. | ||
- ↑ The grain is used to measure in ballistics and archery; grains were originally used in medicine but have been replaced by milligrams.
- ↑ 2.0 2.1 Avoirdupois; avoirdupois is the measure of mass of everyday items.
- ↑ The troy ounce is used in pricing silver, gold, platinum, and other precious metals and gemstones.
