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18. Appendix C - Conversion Factors
TO CONVERT FROM
TO
EQUATION
Feet
Meters
Multiply by 0.3048
Meters
Feet
Multiply by 3.2808399
Degrees Celsius
Degrees Fahrenheit
9/5
×
(
o
C)+32
Degrees Fahrenheit
Degrees Celsius
5/9
×
(
o
F-32)
Milligrams per liter (mg/l)
Parts per million (ppm)
Multiply by 1
Conversion Factors for Common Units of Pressure
kilo Pascals
mm Hg
millibars
inches H
2
0 PSI inches
Hg
1 atm
101.325 760.000 1013.25
406.795 14.6960
29.921
1 kiloPascal
1.00000 7.50062 10.0000
4.01475 0.145038
0.2953
1 mmHg
0.133322 1.00000 1.33322 0.535257 0.0193368
0.03937
1 millibar
0.100000 0.750062 1.00000 0.401475 0.0145038
0.02953
1 inch H
2
0
0.249081 1.86826 2.49081 1.00000 .0361 0.07355
1 PSI
6.89473 51.7148 68.9473
27.6807 1.00000
2.0360
1 inch Hg
3.38642 25.4002 33.8642
13.5956 0.49116
1.00000
1 hectoPascal
0.100000 0.75006 1.00000 0.401475 0.0145038
0.02953
1 cm H
2
0
0.09806
0.7355
9.8 x 10
-7
0.3937
0.014223
0.02896