This table provides a handy reference for the most commonly used conversions.
| Multiply | By | To Obtain |
| Acres | 43,560 | Sq. Ft. |
| Acres | 4,047 | Sq. Meters |
| Acres | 1.562x10-3 | Sq. Miles |
| Acres | 4,840 | Sq. Yards |
| Atmospheres | 29.92 | Inches of Mercury |
| Atmospheres | 14.7 | Pounds/Sq. Inch |
| Barrels (British, Dry) | 5.78 | Cubic Feet |
| Barrels (British, Dry) | 0.1637 | Cubic Meters |
| Barrels (British, Dry) | 36 | Gallons (British) |
| Barrels, Oil | 42 | Gallons (U.S.) |
| Barrels (U.S., Liquid) | 4.211 | Cubic Feet |
| Barrels (U.S., Liquid) | 0.1192 | Cubic Meters |
| Barrels (U.S., Liquid) | 31.5 | Gallons (U.S.) |
| Board-Feet | 144 Sq. In. x 1 In. | Cubic Inches |
| British Thermal Units | 0.252 | Kilogram-Calories |
| British Thermal Units | 777.5 | Foot-Pounds |
| Btu/Min. | 12.96 | Foot-Pounds/Sec. |
| Btu/Min. | 0.02356 | Horsepower |
| Btu/Min. | 0.01757 | Kilowatts |
| Btu/Min. | 17.57 | Watts |
| Bushels | 1.244 | Cubic Feet |
| Bushels | 2,150 | Cubic Inches |
| Bushels | 0.03524 | Cubic Meters |
| Bushels | 4 | Pecks |
| Bushels | 64 | Pints (Dry) |
| Bushels | 32 | Quarts (Dry) |
| Centigrams | 0.01 | Grams |
| Centiliters | 0.01 | Liters |
| Centimeters | 0.0328083 | Feet (U.S.) |
| Centimeters | 0.3937 | Inches |
| Centimeters | 0.01 | Meters |
| Centimeters | 393.7 | Mils. |
| Centimeters | 10 | Millimeters |
| Cords | 8’x4’x4’ | Cubic Feet |
| Cubic Feet | 1,728 | Cubic Inches |
| Cubic Feet | 0.02832 | Cubic Meters |
| Cubic Feet | 0.03704 | Cubic Yards |
| Cubic Feet | 7.481 | Gallons |
| Cubic Feet | 28.32 | Liters |
| Cubic Feet | 59.84 | Pints (Liq.) |
| Cubic Feet | 29.92 | Quarts (Liq.) |
| Cu. Ft. of Water (60°F) | 62.37 | Pounds |
| Cubic Feet/Minute | 0.1247 | Gallons/Sec. |
| Cubic Feet/Minute | 0.472 | Liters/Second |
| Cubic Feet/Minute | 62.4 | Lbs. of Water/Min. |
| Cubic Inches | 16.39 | Cubic Centimeters |
| Cubic Meters | 35.31 | Cubic Feet |
| Cubic Yards | 27 | Cubic Feet |
| Cubic Yards | 46,656 | Cubic Inches |
| Cubic Yards | 0.7646 | Cubic Meters |
| Cubic Yards/Minute | 0.45 | Cubic Feet/Second |
| Days | 1,440 | Minutes |
| Days | 86,400 | Seconds |
| Drams | 1.772 | Grams |
| Drams | 0.0625 | Ounces |
| Fathoms | 6 | Feet |
| Feet | 30.48 | Centimeters |
| Feet | 12 | Inches |
| Feet | 0.3048 | Meters |
| Feet | 1/3 | Yards |
| Feet of Water | 62.43 | Pounds/Sq. Ft. |
| Feet/Minute | 0.508 | Centimeters/Sec. |
| Feet/Minute | 0.01136 | Miles/Hour |
| Feet/Second | 0.6818 | Miles/Hour |
| Feet/Second | 0.01136 | Miles/Minute |
| Gallons (U.S.) | 128 | Ounces (U.S. fluid) |
| Gallons | 3,785 | Cubic Centimeters |
| Gallons | 0.1337 | Cubic Feet |
| Gallons | 231 | Cubic Inches |
| Gallons | 3.785x10-3 | Cubic Meters |
| Gallons | 4.951x10-3 | Cubic Yards |
| Gallons | 3.785 | Liters |
| Gallons | 8 | Pints (Liq.) |
| Gallons | 4 | Quarts (Liq.) |
| Gallons/Minute | 2.228x10-3 | Cubic Feet/Second |
| Grams | 0.03527 | Ounces |
| Grams | 2.205x10-3 | Pounds |
| Horsepower | 33,000 | Foot-Pounds/Min. |
| Horsepower | 0.7457 | Kilowatts |
| Horsepower | 745.7 | Watts |
| Hours | 60 | Minutes |
| Hours | 3,600 | Seconds |
| Inches | 2.54 | Centimeters |
| Inches of Water | 0.002458 | Atmospheres |
| Inches of Water | 0.07355 | Inches of Mercury |
| Inches of Water | 5.204 | Pounds/Sq. Ft. |
| Inches of Water | 0.03613 | Pounds/Sq. In. |
| Kilograms | 2.2046 | Pounds |
| Kilometers | 3,281 | Feet |
| Kilometers | 1,093.60 | Yards |
| Kilowatts | 1.341 | Horsepower |
| Kilowatts | 103 | Watts |
| Kilowatt-Hours | 3,415 | British Thermal Units |
| Liters | 0.03531 | Cubic Feet |
| Liters | 61.02 | Cubic Inches |
| Liters | 0.2642 | Gallons |
| Liters | 2.113 | Pints (Liq.) |
| Liters | 1.057 | Quarts (Liq.) |
| Meters | 100 | Centimeters |
| Meters | 3.2808 | Feet |
| Meters | 39.37 | Inches |
| Meters | 1.0936 | Yards |
| Miles | 5,280 | Feet |
| Miles | 1.6093 | Kilometers |
| Miles | 1,760 | Yards |
| Miles/Hour | 44.7 | Centimeters/Sec. |
| Miles/Hour | 88 | Feet/Minute |
| Miles/Hour | 1.467 | Feet/Second |
| Miles/Hour | 1.6093 | Kilometers/Hour |
| Miles/Hour | 26.82 | Meters/Minute |
| Millimeters | 0.1 | Centimeters |
| Millimeters | 0.03937 | Inches |
| Millimeters | 39.37 | Mils |
| Months | 30.42 | Days |
| Months | 730 | Hours |
| Months | 43,800 | Minutes |
| Ounces | 16 | Drams |
| Ounces | 437.5 | Grains |
| Ounces | 28.35 | Grams |
| Ounces | 0.0625 | Pounds |
| Ounces (Fluid) | 1.805 | Cubic Inches |
| Ounces (Fluid) | 0.02957 | Liters |
| Pints (Dry) | 33.6 | Cubic Inches |
| Pints (Liq.) | 28.87 | Cubic Inches |
| Pints (U.S. liquid) | 16 | Ounces (US fluid) |
| Pounds | 7,000 | Grains |
| Pounds | 453.6 | Grams |
| Pounds | 16 | Ounces |
| Pounds of Water | 0.01602 | Cubic Feet |
| Pounds of Water | 27.68 | Cubic Inches |
| Pounds of Water | 0.1198 | Gallons |
| Pounds/Cubic Inch | 1,728 | Pounds/Cubic Foot |
| Quarts (Dry) | 67.2 | Cubic Inches |
| Quarts (Liq.) | 57.75 | Cubic Inches |
| Quarts (U.S. liquid) | 0.03342 | Cubic Feet |
| Quarts (U.S. liquid) | 32 | Ounces (US fluid) |
| Quarts (U.S. liquid) | 0.832674 | Quarts (British) |
| Revolutions | 360 | Degrees |
| Revolutions | 4 | Quadrants |
| Square Centimeters | 0.155 | Square Inches |
| Square Centimeters | 100 | Square Millimeters |
| Square Feet | 144 | Square Inches |
| Square Feet | 0.0929 | Square Meters |
| Square Feet | 1/9 | Square Yards |
| Square Yards | 9 | Square Feet |
| Square Yards | 0.8361 | Square Meters |
| Temp. (Degs. C.)+17.8 | 1.8 | Temp. (Degs. Fahr.) |
| Temp. (Degs. F.)-32 | 5/9 | Temp. (Degs. Cent.) |
| Tons | 907.2 | Kilograms |
| Tons (short) | 2,000 | Pounds |
| Watts | 1.341x10-3 | Horsepower |
| Watts | 10-3 | Kilowatts |
| Weeks | 168 | Hours |
| Weeks | 10,080 | Minutes |
| Yards | 91.44 | Centimeters |
| Yards | 3 | Feet |
| Yards | 36 | Inches |
| Yards | 0.9144 | Meters |
| Years (Common) | 365 | Days |
| Years (Common) | 8,760 | Hours |