Page 474 - Boiler_Operators_Handbook,_Second_Edition

Appendices 459

Appendix K

Value Conversions

To obtain multiply by To obtain multiply by
atmospheres ft. of water 0.0295 knots miles per hour 0.8684
atmospheres in. mercury 0.0334 liters cubic feet 28.316
atmospheres psi 0.0680 liters gallons (US) 3.7853
barrels gallons (US) 0.0238 horsepower Btuh 0.00039
Btu calories 252 horsepower kW 1.341
Btu hp-hr 2545 meters feet 0.3048
Btu kW-hr 3413 meters inches 0.0254
Btu watt-hr 3.413 meters nautical miles 1852
Btuh horsepower 2545 meters miles 1609.34
Btuh kW 3413 microns inches 25.4
Btuh refrigeration ton 12,000 miles feet 5280
centimeter inches 2.54 miles meters 0.00062
cubic feet gallons (US) 0.1337 miles nautical miles 1.151
cubic meters cubic feet 0.0283 miles, nautical kilometers 0.54
feet of H O atmospheres 33.899 miles, nautical miles 0.8690
2
feet/minute miles per hour 88 milliliters microns 0.001
feet/second gravity 32.174 mils centimeters 393.7
foot-pounds Btu 778 mils inches 1000
foot-lbs/min. horsepower 33,000 mils microns 0.03937
gallons (US) barrels 42 ounces grains 0.00228
gallons (US) cubic feet 7.4805 ounces grams 0.03527
gallons (US) Imperial gallons 1.201 ounces, liquid gallons (US) 128
gallons (US) Liters 0.2642 parts/million grains/gallon 17.118
grains grams 15.432 percent grade ft. per 100 ft. 1.0
grains ounces 437.5 pounds grains 0.00014
grains pounds 7000 pounds grams 0.00220
grains/gallon parts per million 0.0584 pounds kilograms 2.2046
grams grains 0.0648 pounds long tons 2240
grams ounces 28.35 pounds metric tons 2204.6
Grams pounds 453.59 pounds short tons 2000
Inches centimeters 0.3937 lbs.ice melt/hr. refrigeration ton 83.711
inches microns 0.00004 pounds/cu.ft. grams/cu.cm. 62.428
in. mercury feet of water 0.88265 pounds/cu.ft. pounds/gallon 7.48
inches water psi 27.673 psi atmospheres 14.696
kilograms pounds 0.45359 psi feet of water 0.43352
kilometer mile (US) 1.6093 psi inches water 0.0361
km/hr mph 1.6093 quarts cubic feet 29.922
kW Btu/minute 0.01758 quarts liters 1.057
kW horsepower 0.7457 Tons, metric Tons, short 0.9072
kW-hour Btu 0.00029