# Conversion/Equivalency Factors

## "C" Conversion/Equivalency Factors

Original Unit Multiplied
By
Conversion
Factor
Equals Final Unit
calibers x 0.01 = inches (in)
calibers x 0.25 = millimeters (mm)
calories (cal) x 1.56E–06 = horsepower–hours
calories (cal) x 1.58E–06 = horsepower–hours, metric
calories (cal) x 4.186 8 a = joules (J)
calories (cal) x 1.16E–06 = kilowatthours (kWh)
calories, gram (mean) x 3.96832E–03 = British thermal units (mean)
candles/square centimeter x 3.14 = lamberts
candles/square inch x 0.48 = lamberts
Celsius, degrees (°C) x 1.8 + 32 a = degrees Fahrenheit (°F)
centares or centiares x 1 = square meters (m2)
centigrams (cg) x 0.01 = grams (g)
centiliters (cL) x 0.61 = cubic inches (in3)
centiliters (cL) x 2.70 = drams
centiliters (cL) x 0.01 = liters (L)
centiliters (cL) x 0.33 = ounces, US fluid
centimeters (cm) x 0.03 = feet (ft)
centimeters (cm) x 0.39 = inches (in)
centimeters (cm) x 1.0E–05 = kilometers (km)
centimeters (cm) x 0.01 = meters (m)
centimeters (cm) x 6.21E–06 = miles (mi)
centimeters (cm) x 10 = millimeters (mm)
centimeters (cm) x 393.70 = mils
centimeters (cm) x 0.01 = yards (yd)
centimeters of mercury x 0.01 = atmospheres of mercury
centimeters of mercury x 0.44 = feet of water
centimeters of mercury x 136 = kilograms/square meter of mercury
centimeters of mercury x 27.85 = pounds/square foot of mercury
centimeters of mercury x 0.19 = pounds/square inch of mercury
centimeter–dynes x 1.02E–03 = centimeter–grams
centimeter–dynes x 1.02E–08 = meter–kilograms
centimeter–dynes x 7.38E–08 = pound–feet
centimeter–grams x 980.70 = centimeter–dynes
centimeter–grams x 1.0E–05 = meter–kilograms
centimeter–grams x 0.07 = pound–feet
centimeters/second x 1.19 = feet/minute
centimeters/second x 0.03 = feet/second
centimeters/second x 0.03 = kilometers/hour
centimeters/second x 0.19 = knots
centimeters/second x 0.60 = meters/minute
centimeters/second x 0.02 = miles/hour
centimeters/second x 3.728E–04 = miles/minute
centimeters/second/second x 0.03 = feet/second/second
centimeters/second/second x 0.03 = kilometers/hour/second
centimeters/second/second x 0.01 = meters/second/second
centimeters/second/second x 0.02 = miles/hour/second
chains x 792 = inches (in)
chains (surveyor's or Gunter's) x 20.12 = meters (m)
chains (surveyor's or Gunter's) x 22 = yards (yd)
circular mils x 5.07E–06 = square centimeters (cm2)
circular mils x 7.85E–07 = square inches (in2)
circular mils x 0.78 = square mils
cord feet x 16 = cubic feet (ft3 or cf)
cords (cd) x 8 = cord feet
cords (cd) x 128 a = cubic feet (ft3 or cf)
cords (cd) x 3.624 556 = cubic meters (m3)
cords (cd) x 1.25 b = short tons (st)
coulombs (C) x 1.04E–05 = faradays
coulombs (C) x 3,000,000,000 = statcoulombs
coulombs/square centimeter x 64.52 = coulombs/square inch
coulombs/square centimeter x 10,000 = coulombs/square meter
coulombs/square inch x 0.15 = coulombs/square centimeter
coulombs/square inch x 1,550 = coulombs/square meter
coulombs/square meter x 1.0E–04 = coulombs/square centimeter
coulombs/square meter x 6.452E–04 = coulombs/square inch
cubic centimeters (cm3) x 3.53E–05 = cubic feet (ft3 or cf)
cubic centimeters (cm3) x 0.06 = cubic inches (in3)
cubic centimeters (cm3) x 1.0E–06 = cubic meters (m3)
cubic centimeters (cm3) x 1.31E–06 = cubic yards (yd3)
cubic centimeters (cm3) x 2.642E–04 = gallons, US liquid
cubic centimeters (cm3) x 1.0E–03 = liters (L)
cubic centimeters (cm3) x 2.113E–03 = pints, US liquid
cubic centimeters (cm3) x 1.057E–03 = quarts, US liquid
cubic feet (ft3 or cf) x 1,027 = British thermal units (Btu)
cubic feet (ft3 or cf) x 0.80 = bushels, dry
cubic feet (ft3 or cf) x 28,320 = cubic centimeters (cm3)
cubic feet (ft3 or cf) x 1,728 = cubic inches (in3)
cubic feet (ft3 or cf) x 0.028 316 85 = cubic meters (m3)
cubic feet (ft3 or cf) x 0.037 037 037 = cubic yards (yd3)
cubic feet (ft3 or cf) x 7.48 = gallons, US liquid
cubic feet (ft3 or cf) x 28.316 8 = liters (L)
cubic feet (ft3 or cf) x 59.84 = pints, US liquid
cubic feet (ft3 or cf) x 29.92 = quarts, US liquid
cubic feet/minute x 472 = cubic centimeters/second
cubic feet/minute x 0.12 = gallons/second
cubic feet/minute x 0.471 947 4 = liters/second
cubic feet/second x 448.83 = gallons/minute
cubic feet/second x 0.64 = million gallons/day
cubic inches (in3) x 16.39 = cubic centimeters (cm3)
cubic inches (in3) x 5.787E–04 = cubic feet (ft3 or cf)
cubic inches (in3) x 1.638 706 4E–05 = cubic meters (m3)
cubic inches (in3) x 2.14E–05 = cubic yards (yd3)
cubic inches (in3) x 4.329E–03 = gallons (gal)
cubic inches (in3) x 106,100 = mil–feet
cubic inches (in3) x 16.387 06 = milliliters (mL)
cubic inches (in3) x 0.03 = pints, US liquid
cubic inches (in3) x 0.01 = quarts, US liquid
cubic meters (m3) x 28.38 = bushels, dry
cubic meters (m3) x 1,000,000 = cubic centimeters (cm3)
cubic meters (m3) x 35.315 = cubic feet (ft3 or cf)
cubic meters (m3) x 61,023 = cubic inches (in3)
cubic meters (m3) x 1.30 = cubic yards (yd3)
cubic meters (m3) x 264.20 = gallons, US liquid
cubic meters (m3) x 1,000 = liters (L)
cubic meters (m3) x 2,113 = pints, US liquid
cubic meters (m3) x 1,057 = quarts, US liquid
cubic yards (yd3) x 0.764 555 = cubic meters (m3)
cubic yards (yd3) x 764,600 = cubic centimeters (cm3)
cubic yards (yd3) x 27 = cubic feet (ft3 or cf)
cubic yards (yd3) x 46,656 = cubic inches (in3)
cubic yards (yd3) x 0.764 554 9 = cubic meters (m3)
cubic yards (yd3) x 202 = gallons, US liquid
cubic yards (yd3) x 764.60 = liters (L)
cubic yards (yd3) x 1,615.90 = pints, US liquid
cubic yards (yd3) x 807.90 = quarts, US liquid
cubic yards/minute x 0.45 = cubic feet/second
cubic yards/minute x 3.36 = gallons/second
cubic yards/minute x 12.74 = liters/second
cups, US x 236.588 2 = cubic centimeters (cm3)

a Exact conversion.

b Calculated by the Energy Information Administration.

c Estimated.

This table was last updated January 31, 2014.