Unit Conversion Factors

Conversion Factors

Unit     X     Constant     = Unit   Unit     X     Constant     = Unit
 Btu  778.0  Foot-pound (ft-lb)    Horsepower (hp)  33000.0  Ft-lb/min
 Btu  1054.8  Joules    Horsepower (hp)  550.0  Ft-lb/sec
 Btu  0.293  Watt-hours (w-hr)    Horsepower (hp)  745.7  Watts (w)
 Centimeters (cm)  0.032808  Feet (ft)    Inch (in)  0.027178  Yards (yd)
 Centimeters (cm)  0.3937  Inches (in)    Inch (in)  0.083333  Feet (ft)
 Centimeters (cm)  0.00001  Kilometers (km)    Inch (in)  0.0000254  Kilometers (km)
 Centimeters (cm)  0.010  Meters (m)    Inch (in)  0.0254  Meters (m)
 Centimeters (cm)  10.0  Millimeters (mm)    Inch (in)  2.54000514  Centimeters (cm)
 Circular mils  0.00064516  Circular millimeters    Inch (in)  25.4000514  Millimeters (mm)
 Circular mils  0.0000007854  Inches2 (in2)    Inch (in)  1000.0  Mils
 Circular mils  0.00050671  Square Millimeters (mm2)    Joules  0.000948  Btu
 Circular mils  0.7854  Mils2    Joules  107  Ergs
 Circular mils  0.7854  Square mile    Kilogram  2.205  Pound
 Cubic centimeter (cm3)  0.000035314  Cubic foot (ft3)    Kilogram/km  0.6214  Pound/kft
 Cubic centimeter (cm3)  0.061023  Cubic inch (in3)    Kilometers  0.6214  Miles
 Cubic centimeter (cm3)  0.000001  Cubic meter (m3)    Liters (l)  61.025  Cubic inch (in3)
 Cubic centimeter (cm3)  0.00026417  Gallons    Meters (m)  1.093611  Yards (yd)
 Cubic foot (ft3)  1728.0  Cubic inch (in3)    Meters (m)  3.2808333  Feet (ft)
 Cubic foot (ft3)  28317.016  Cubic centimeter (cm3)    Meters (m)  39.37  Inch (in)
 Cubic foot  0.02832  Cubic meter    Meters (m)  100.0  Centimeters (cm)
 Cubic inch (in3)  0.0005787  Cubic foot (ft3)    Miles  1760.0  Yards (yd)
 Cubic inch (in3)  0.000016387  Cubic meter (m3)    Miles  5280.0  Feet (ft)
 Cubic inch (in3)  16.387162  Cubic centimeter (cm3)    Miles  1.6093  Kilometers (km)
 Cubic meter (m3)  1000000.0  Centimeter (cm)    Millimeters (mm)  0.0032808  Feet (ft)
 Cubic meter (m3)  35.314456  Cubic foot (ft3)    Millimeters (mm)  0.03937  Inch (in)
 Cubic meter (m3)  264.17  Gallons    Millimeters (mm)  0.001  Meters (m)
 Feet (ft)  0.00018939  Miles    Millimeters (mm)  0.01  Centimeters (cm)
 Feet (ft)  0.33333  Yards (yd)    Millimeters (mm)  39.3701  Mils
 Feet (ft)  12  Inches (in)    Millimeters (mm)  1000  Microns
 Feet (ft)  0.0003048  Kilometer (km)    Ohms/km  0.3048  Ohms/kft
 Feet (ft)  0.3048  Meters (m)    Ounce  28.35  Gram
 Feet (ft)  30.48  Centimeter (cm)    Pound  0.4536  Kilogram
 Feet (ft)  304.8  Millimeters (mm)    Pound/kft  1.4881  Kilogram/km
 Feet/pound (ft/lb)  0.00067197  Meters/grams (m/g)    Square inch  6.452  Square centimeter
 Foot-pound (ft-lb)  0.001285  Btu    Square centimeter  0.155  Square inch
 Foot-pound (ft-lb)  1.356  Joules    Square foot  0.0929  Square meter
 Foot-pound (ft-lb)  0.1383  Kilogram/meter (kg/m)    Square meter  10.76  Square foot
 Gallons  3.785332  Liters (l)    Square miles  2.59  Square kilometer
 Gallons  0.13368  Cubic foot (ft3)    Square kilometer  0.3861  Square mile
 Gallons  231.0  Cubic inch (in3)    Watts (w)  44.25  Ft-lb/minute
 Gallons  3785.332  Cubic centimeter (cm3)    Watts (w)  0.737562  Ft-lb/sec
 Grams (g)  15.432  Grains    Watts (w)  0.001341  Horsepower (hp)
 Gram  0.03527  Ounce    Watt-hour (w-hr)  3.41266  Btu
 Gram/centimeter3 (gm/cm3)  0.0361275  Pounds/in3 (lb/m3)