# Conversion/Equivalency Factors

## "S" Conversion/Equivalency Factors

Original Unit Multiplied
By
Conversion
Factor
Equals Final Unit
scruples x 20 = grains
seconds (angle) x 2.78E–04 = degrees
seconds (angle) x 0.01 = minutes
seconds (angle) x 3.09E–06 = quadrants
seconds (angle) x 4.848 137E–06 = radians
short tons (st) x 0.89 = long tons
short tons (st) x 0.907 184 7 = metric tons (t)
short tons (st) x 32,000 = ounces (oz)
short tons (st) x 29,166.66 = ounces, troy
short tons (st) x 2,000a = pounds (lb)
short tons (st) x 2,430.56 = pounds, troy
short tons of crude oil x 6.65 = barrels (bbl)
short tons/square foot x 9,765 = kilograms/square meter
short tons/square foot x 2,000 = pounds/square inch
slugs x 14.593 90 = kilograms (kg)
slugs x 32.17 = pounds (lb)
spans x 9 = inches (in)
square centimeters (cm2) x 197,000 = circular mils
square centimeters (cm2) x 1.08E–03 = square feet (ft2)
square centimeters (cm2) x 0.15 = square inches (in2)
square centimeters (cm2) x 1.0E–04 = square meters (m2)
square centimeters (cm2) x 3.86E–11 = square miles (mi2)
square centimeters (cm2) x 100 = square millimeters (mm2)
square centimeters (cm2) x 1.2E–04 = square yards (yd2)
square feet (ft2) x 2.3E–05 = acres
square feet (ft2) x 183,000,000 = circular mils
square feet (ft2) x 929 = square centimeters (cm2)
square feet (ft2) x 144 = square inches (in2)
square feet (ft2) x 0.092 903 04a = square meters (m2)
square feet (ft2) x 3.59E–08 = square miles (mi2)
square feet (ft2) x 92,900 = square millimeters (mm2)
square feet (ft2) x 0.11 = square yards (yd2)
square inches (in2) x 1,270,000 = circular mils
square inches (in2) x 6.451 6a = square centimeters (cm2)
square inches (in2) x 6.94E–03 = square feet (ft2)
square inches (in2) x 645.20 = square millimeters (mm2)
square inches (in2) x 1,000,000 = square mils
square inches (in2) x 7.72E–04 = square yards (yd2)
square kilometers (km2) x 247.10 = acres
square kilometers (km2) x 100 = hectares
square kilometers (km2) x 10,000,000,000 = square centimeters (cm2)
square kilometers (km2) x 10,800,000 = square feet (ft2)
square kilometers (km2) x 1,550,000,000 = square inches (in2)
square kilometers (km2) x 1,000,000 = square meters (m2)
square kilometers (km2) x 0.386 = square miles (mi2)
square kilometers (km2) x 1,200,000 = square yards (yd2)
square meters (m2) x 2.47E–04 = acres
square meters (m2) x 10,000 = square centimeters (cm2)
square meters (m2) x 10.763 915 = square feet (ft2)
square meters (m2) x 1,550 = square inches (in2)
square meters (m2) x 3.86E–07 = square miles (mi2)
square meters (m2) x 1,000,000 = square millimeters (mm2)
square meters (m2) x 1.19 = square yards (yd2)
square miles (mi2) x 640 = acres
square miles (mi2) x 27,900,000 = square feet (ft2)
square miles (mi2) x 2.589 988 = square kilometers (km2)
square miles (mi2) x 2,589,988 = square meters (m2)
square miles (mi2) x 3,100,000 = square yards (yd2)
square millimeters (mm2) x 1,973 = circular mils
square millimeters (mm2) x 0.01 = square centimeters (cm2)
square millimeters (mm2) x 1.08E–05 = square feet (ft2)
square millimeters (mm2) x 1.55E–03 = square inches (in2)
square mils x 1.27 = circular mils
square mils x 6.45E–06 = square centimeters (cm2)
square mils x 1.0E–06 = square inches (in2)
square yards (yd2) x 2.07E–04 = acres
square yards (yd2) x 8,361 = square centimeters (cm2)
square yards (yd2) x 9 = square feet (ft2)
square yards (yd2) x 1,296 = square inches (in2)
square yards (yd2) x 0.836 127 4 = square meters (m2)
square yards (yd2) x 3.23E–07 = square miles (mi2)
square yards (yd2) x 836,000 = square millimeters (mm2)

a Exact conversion.

b Calculated by the Energy Information Administration.

c Estimated.

This table was last updated January 31, 2014.