Unit Conversion Table

Please use the following chart for necessary units.

Unit of Pressure

FromTo mmHg ft H2O psi in H2O bar kPa in Hg
in Hg 25.4001 1.132 0.491 13.6 0.03390 3.38 1
kPa 7.5006 0.3345 0.145 4.01 0.01 1 0.295
bar 750.064 33.45 14.5 401 1 100 29.5
in H2O 1.8683 0.0833 0.0361 1 0.00249 0.249 0.073
psi 51.7151 2.306 1 27.7 0.0689 6.89 2.03
ft H2O 22.4199 1 0.43 12 0.029 2.98 0.882
mmHg 1 0.0446 0.0193 0.5352 0.013 0.1333 0.0393

Unit of Flow Rate

FromTo LPS
(l/sec)
LPM
(l/min)
CMH
(m3/hr)
CFM
(ft3/min)
CFH
(ft3/hr)
GPM
(gal/min)
LPS
(l/sec)
1 60 3.6 2.119 127.1 15.85
LPM
(l/min)
0.01667 1 0.06 0.03532 2.119 0.2642
CMH
(m3/hr)
0.2778 16.67 1 0.589 35.32 4.403
CFM
(ft3/min)
0.472 28.32 1.7 1 60 7.48
CFH
(ft3/hr)
0.0078 0.42 0.02832 0.01667 1 0.1247
GPM
(gal/min)
0.0631 3.785 0.2271 0.1337 8.021 1

Unit of Volume

FromTo cm3 inch3 l(liter) ft3 gal
gal 3785 231 3.785 0.1337 1
ft3 28320 1728 28.32 1 7.48
l(liter) 1000 61.03 1 0.0353 0.264
inch3 16.387 1 0.0164 0.00057 0.0043
cm3 1 0.061 0.001 3.53x10-5 0.00026

Unit of Length

FromTo inch ft m cm mm
mm 0.0394 0.0033 0.001 0.1 1
cm 0.394 0.0328 0.01 1 10
m 39.37 3.281 1 100 1000
ft 12 1 0.304 30.48 304.8
inch 1 0.0833 0.0254 2.54 25.4
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