To convert unites appearing in Column 1 (left column) into equivalent values in column 2 (center column), multiply by the factor in Column 3. Example: to convert 7 gallons into cubic inches, multiply 7 x 231 = 1617. Of course to convert from right to left (center column units into left column units), you divide by the factor in Column 3. Example: to convert 25 horsepower into BTU per minute, divide 25 by 0.02356 = 1016.
| TO CONVERT | INTO | MULTIPLY BY |
|---|---|---|
| Atmospheres | Feet of Water | 33.9 |
| Atmospheres | Inches of Mercury (Hg.) | 29.92 |
| Atmospheres | PSI (Lbs./Sq.In.) | 14.7 |
| BTU | Foot Lbs. | 778.3 |
| BTU/Hr. | Watts | 0.2931 |
| BTU/Min. | Horsepower | 0.02356 |
| Centigrade | Farenheit | C x 1.8 +32 |
| Centimeters | Inches | 0.3937 |
| Cubic Centimeters | Gallons (U.S. liq.) | 0.0002642 |
| Cubic Centimeters | Liters | 0.001 |
| Cubic Feet | Cubic Inches | 1.728 |
| Cubic Feet | Gallons (U.S. liq.) | 7.48052 |
| Cubic Inches | Cubic Feet | 0.0005787 |
| Cubic Inches | Gallons (U.S. liq.) | 0.004329 |
| Days | Seconds | 86,400 |
| Degrees (Angle) | Radians | 0.01745 |
| Feet | Meters | 0.3048 |
| Feet | Miles | 0.0001894 |
| Feet of Water | Atmospheres | 0.0295 |
| Feet of Water | Inches of Mercury (Hg.) | 0.8826 |
| Feet of Water | PSI (Lbs./Sq. in.) | 0.4335 |
| Feet/Min. | Miles/Hr. | 0.01136 |
| Feet/Sec. | Miles/Hr. | 0.6818 |
| Foot Lbs. | BTU | 0.001286 |
| Foot Lbs./Min. | Horsepower | 0.0000303 |
| Foot Lbs./Sec. | Horsepower | 0.001818 |
| Gallons (U.S. liq.) | Cubic Feet | 0.1337 |
| Gallons (U.S. liq.) | Cubic Inches | 231 |
| Gallons of water | Pounds of Water | 8.3453 |
| Horsepower | BTU/Min. | 42.44 |
| Horsepower | Foot Lbs./Min. | 33,000 |
| Horsepower | Foot Lbs./Sec. | 550 |
| Horsepower | Watts | 745.7 |
| Hours | Days | 0.04167 |
| Hours | Weeks | 0.005952 |
| Inches | Centimeters | 2.54 |
| Inches of Mercury (Hg.) | Atmospheres | 0.03342 |
| Inches of Mercury (Hg.) | Feet of Water | 1.133 |
| Inches of Mercury (Hg.) | PSI (Lbs./Sq. in.) | 0.4912 |
| Inches of Water | PSI (Lbs./Sq. in.) | 0.03613 |
| Liters | Cubic Centimeters | 1,000 |
| Liters | Gallons (U.S. liq.) | 0.2642 |
| Micron | Inches | 0.00004 |
| Miles (Statute) | Feet | 5,280 |
| Miles/Hr. (MPH) | Feet/Min. | 88 |
| Miles/Hr. (MPH) | Feet/Sec. | 1.467 |
| Ounces (Weight) | Pounds | 0.0625 |
| Ounces (Fluid) | Cubic Inches | 1.805 |
| Pints (Fluid) | Quarts (Fluid) | 0.5 |
| Pounds | Grains | 7,000 |
| Pounds | Grams | 453.5924 |
| Pounds | Ounces | 16 |
| PSI (Lbs./Sq. in.) | Atmospheres | 0.06804 |
| PSI (Lbs./Sq. in.) | Feet of Water | 2.307 |
| PSI (Lbs./Sq. in.) | Inches of Mercury (Hg.) | 2.036 |
| Quarts | Gallons | 0.25 |
| Square Feet | Square Inches | 144 |
| Temperature (F)-32 | Temperature (C) | 0.5555 |
| Tons (Short) | Pounds | 2,000 |
| Watts | Horsepower | 0.001341 |