Weight and Measures - Conversion Factors Section V - Specifications - Group 18 Page V-44 M11 Weight and Measures - Conversion Factors FROM METRIC TO U.S. CUSTOMARY MULTIPLY BY Unit Name Abbr. Unit Name Abbr. Area sq. inch in 2 sq. millimeters mm 2 645.16 0.001550 sq. centimeters cm 2 6.452 0.155 sq. foot ft 2 sq. meter m 2 0.0929 10.764 Fuel Consumption pounds per horsepower hour QUANTITY U.S. CUSTOMARY METRIC FROM U.S.
CUSTOMARY TO METRIC MULTIPLY BY lb/hp-hr grams per kilowatt hour g/kw-hr 608.277 0.001645 Fuel Performance miles per gallon mpg kilometers per liter km/l 0.4251 2.352 gallons per mile gpm liters per kilometer l/km 2.3527 0.4251 Force pounds force lbf Newton N 4.4482 0.224809 Length inch in millimeters mm 25.40 0.039370 foot ft millimeters mm 304.801 0.00328 Power horsepower hp kilowatt kw 0.746 1.341 Pressure pounds force per sq.
inch psi kilopascal kPa 6.8948 0.145037 inches of mercury in Hg kilopascal kPa 3.3769 0.29613 inches of water in H 2 O kilopascal kPa 0.2488 4.019299 inches of mercury in Hg millimeters of mercury mm Hg 25.40 0.039370 inches of water in H 2 O millimeters of water mm H 2 O 25.40 0.039370 bars bars kilopascals kPa 100.001 0.00999 bars bars millimeters of mercury mm Hg 750.06 0.001333 Temperature fahrenheit °F centigrade °C (°F-32) ч1.8 (1.8 x °C) +32 Torque pound force per foot ft lb Newton-meter 1.35582 0.737562 pound force per inch in lb Newton-meter 0.113 8.850756 Velocity miles/hour mph kilometers/hour kph 1.6093 0.6214 Volume: liquid displacement gallon (U.S.) gal.
liter l 3.7853 0.264179 gallon (Imp*) gal. liter l 4.546 0.219976 cubic inch in 3 liter l 0.01639 61.02545 cubic inch in 3 cubic centimeter cm 3 16.387 0.06102 Weight (mass) pounds (avoir.) lb kilograms kg 0.4536 2.204623 Work British Thermal Unit BTU joules j 1054.5 0.000948 British Thermal Unit BTU kilowatt-hour kw-hr 0.000293 3414 horsepower hours hp-hr kilowatt-hour kw-hr 0.746 1.341