Table of Equivalents
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 |
Fahrenheit |
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 |
|
