Page 22 - Civil Engineering Formulas
P. 22
CONVERSION FACTORS FOR CIVIL ENGINEERING PRACTICE 3
TABLE 1.3 Factors for Conversion to SI Units of Measurement
To convert from To Multiply by
Acre foot, acre ft Cubic meter, m 3 1.233489 E 03
Acre Square meter, m 2 4.046873 E 03
Angstrom, Å Meter, m 1.000000* E 10
Atmosphere, atm Pascal, Pa 1.013250* E 05
(standard)
Atmosphere, atm Pascal, Pa 9.806650* E 04
(technical
1 kgf/cm )
2
Bar Pascal, Pa 1.000000* E 05
Barrel (for petroleum, Cubic meter, m 2 1.589873 E 01
42 gal)
Board foot, board ft Cubic meter, m 3 2.359737 E 03
British thermal unit, Joule, J 1.05587 E 03
Btu, (mean)
British thermal unit, Watt per meter 1.442279 E 01
Btu (International kelvin, W/(m K)
2
Table) in/(h)(ft )
(°F) (k, thermal
conductivity)
British thermal unit, Watt, W 2.930711 E 01
Btu (International
Table)/h
British thermal unit, Watt per square 5.678263 E 00
Btu (International meter kelvin,
2
2
Table)/(h)(ft )(°F) W/(m K)
(C, thermal
conductance)
British thermal unit, Joule per kilogram, 2.326000* E 03
Btu (International J/kg
Table)/lb
British thermal unit, Joule per kilogram 4.186800* E 03
Btu (International kelvin, J/(kg K)
Table)/(lb)(°F)
(c, heat capacity)
British thermal unit, Joule per cubic 3.725895 E 04
cubic foot, Btu meter, J/m 3
(International
Table)/ft 3
Bushel (U.S.) Cubic meter, m 3 3.523907 E 02
Calorie (mean) Joule, J 4.19002 E 00
Candela per square Candela per square 1.550003 E 03
inch, cd/in 2 meter, cd/m 2
Centimeter, cm, of Pascal, Pa 1.33322 E 03
mercury (0°C)
(Continued)