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 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

© Copyright 2015 ISWM. All rights Reserved.