Table of Equivalents
To convert units appearing in Column 1 (left column) into equivalent values in Column 2 (center column),
multiply by factor in Column 3.

To convert units appearing in Column 2 (center) into equivalent values of units in Column 1 (left), divide by factor in Column 3. Example: To convert 25 horsepower into BTU per minute, divide 25 by 0.02356 = 1061

TO CONVERT     »

INTO       »

MULTIPLY

INTO             «      

TO CONVERT      »

DIVIDE 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

Celsius

Farenheit

0C x 1.8 +32

Centimeters

Inches

0.3937

Cubic Centimeters 

Gallons (U.S. Liq.)

0.0002642

Cubic Centimeters

Liters

0.001

Cubic Feet1

Cubic Inches

.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 Inches

231

Gallons (U.S. Liq.)

Cubic Feet

0.1337

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

0.00625

Ounces (Fluid)

Cubic Inches

1.805

Pints (Fluid)

Quarts (Fluid)

0.5

Pounds

Grams

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

2.036

PSI (Lbs./Sq.In.)

Kilopascals (kP)

6.894757

Quarts

Gallons

0.25

Square Feet

Square Inches

144

Temperature (0F) -32

Temperature (0C)

0.5555

Tons (Short)

Pounds

2,000

Watts

Horsepower

0.001341

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