Appendix
Design Guide 540 3/9/2009
Conversion Factors
Metric to English
Metric to Metric
English to Metric
From
To
Multiply By
cubic meter (m³)
cubic foot (ft³)
35.31
cubic meter/hr (m³/h)
cubic foot/hr (cfh)
35.31
degrees Celsius (°C)
degrees Fahrenheit (°F)
(°C x 9/5) + 32
kilogram (kg)
pound (lb)
2.205
kilowatt (kW)
BTU/hr
3414
meter (m)
foot (ft)
3.28
millibar (mbar)
inches water column ("w.c.)
0.401
millibar (mbar)
pounds/sq in (psi)
14.5 x 10
-3
millimeter (mm)
inch (in)
3.94 x 10
-2
MJ/Nm³
BTU/ft³ (standard)
2.491 x 10
-2
From
To
Multiply By
kiloPascals (kPa)
millibar (mbar)
10
meter (m)
millimeter (mm)
1000
millibar (mbar)
kiloPascals (kPa)
0.1
millimeter (mm)
meter (m)
0.001
From
To
Multiply By
BTU/hr
kilowatt (kW)
0.293 x 10
-3
cubic foot (ft3)
cubic meter (m3)
2.832 x 10
-2
cubic foot/hour (cfh)
cubic meter/hour (m3/h)
2.832 x 10
-2
degrees Fahrenheit (°F)
degrees Celsius (°C)
(°F - 32) ÷ 5/9
foot (ft)
meter (m)
0.3048
inch (in)
millimeter (mm)
25.4
inches water column ("w.c.)
millibar (mbar)
2.49
pound (lb)
kilogram (kg)
0.454
pounds/sq in (psi)
millibar (mbar)
68.95
BTU/ft³ (standard)
MJ/Nm³
40.14
