Druck DPI 142/150 Calibration Manual
v
K382 Issue No. 1
Pressure units and conversion factors
Table of pressure units and conversion factors
Unit Conversion
To convert FROM pressure VALUE 1 in pressure UNITS 1
TO pressure VALUE 2 in pressure UNITS 2, calculate as follows:
VALUE 2 = VALUE 1 x FACTOR 1
FACTOR 2
Note:
The conversion factor for pressure units referenced [1] are calculated for a water
temperature of 4°C. Pressure units referenced [2] are calculated for a water tem-
perature of 68°F these units are normally used in the USA.
Pressure unit
Factor
(Pascals)
Pressure unit
Factor
(Pascals)
bar
100000
lbf/ft
2
47.8803
lbf/in
2
(psi)
6894.76
inHg
3386.39
mH
2
O
9806.65
inH
2
O [1]
249.089
mbar
100
ftH
2
O [1]
2989.07
kgf/cm
2
98066.5
atm
101325.0
kgf/m
2
9.80665
pdl/ft
2
1.48816
mmHg
133.322
dyn/cm
2
0.1
cmHg
1333.22
hbar
10000000
mHg
133322.0
tonf/ft
2
(UK)
107252.0
mm/H
2
O [1]
9.80665
tonf/in
2
(UK)
15444300
cm/H
2
O [1]
98.0665
inH
2
O (USA) [2]
248.64135
N/m
2
1
ftH
2
O (USA) [2]
2983.6983
hPa
100
kp/mm
2
9806650
kPa
1000
kp/cm
2
98066.5
MPa
1000000
kp/m
2
9.80665
torr
133.322
