Page 36 - Appplied Mathematics for the Petroleum and Other Industries, 5th Edition

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Appendix C

CONVERSION FACTORS

C-1. CONVERSION FACTORS FOR CONVENTIONAL AND METRIC (SI) MEASUREMENTS
To use this table, multiply the number of known units of measure (in the left-hand column) by the conversion fac-
tor for the desired unit of measure; for example, to convert 50 barrels to gallons, multiply: 50 × 42 = 2,100 gallons.

Unit of Measure Conventional Units Metric Units
To convert: to: multiply by: to: multiply by:

acre ........................................... square foot 43,560 square metre 4,046.875
square yard 4,840 square kilometre 0.004046875
square rod 160
square mile 0.0015625
section 0.0015625
acre-foot ................................... cubic foot 43,560 cubic metre 1,233.48766

bar ............................................. inch of water millimetre of
@ 60°F 407.229 water @ 60°F 10,343.6
inch of mercury millimetre of
@ 32°F 29.5282 mercury @ 0°C 750.0187
barrel, U.S. petroleum ............... cubic foot 5.6146 cubic metre 0.1589873
(bbl) gallon 42 litre 158.9873
British thermal unit ................. foot-pound 777.97265 joule 1,054.68
@ 60°F (Btu) kilowatt-hour 0.00029283 kilowatt-hour 0.00029283
calorie 251.98
horsepower-hour 0.0003927
calorie (cal) ............................... British thermal unit 0.003968 joule 4.1868
centimetre (cm) ........................ mil 393.70 millimetre 10
inch 0.3937 metre 0.01
foot 0.032808
centipoise (cp)........................... poise 100 pascal-second 0.001

3
cubic centimetre (cm ) .............. cubic inch 0.061023 cubic millimetre 1,000
cubic foot 0.000035314 millilitre 1
gallon 0.00026417
cubic foot .................................. cubic inch 1,729.98829 cubic centimetre 28,317
cubic yard 0.037036 cubic metre 0.028317
gallon 7.48050
barrel 0.17811
Petroleum Extension-The University of Texas at Austin
cubic foot of water ................... pound of water 62.3
3
(ft of H O)
2
cubic foot/second ..................... gallon/minute 488.883
3
(ft /sec)
3
cubic inch (in. ) ........................ cubic foot 0.0005787 cubic centimetre 16.38716
cubic yard 0.000021434 litre 0.016387
gallon 0.0043290 millilitre 16.38716

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