Page 15 - Handbook of Civil Engineering Calculations, Second Edition

SI Conversion factor—multiply USCS unit by
USCS unit SI unit symbol this factor to obtain the SI unit
square mile square meter m 2 2589998.0

pound per gallon (UK kilogram per cubic kg/m 3 99.77
liquid) meter

pound per gallon (U.S. kilogram per cubic kg/m 3 119.83
liquid) meter
poundal Newton N 0.11382

square (100 square feet) square meter m 2 9.29
ton (long 2,240 lb) kilogram kg 1016.04
ton (short 2,000 lb) kilogram kg 907.18
ton, short, per cubic yard kilogram per cubic kg/m 3 1186.55
meter
ton, long, per cubic yard kilogram per cubic kg/m 3 1328.93
meter
ton force (2,000 lbf) Newton N 8896.44
yard, length meter m 0.0914
(continued)