General information
Conversion tables
Table 6 Volume rate of flow
From To Ô L/sec
L/s
(dm
3
/ sec)
L/h
m
3
/s
m
3
/h
cfm
ft
3
/h
UK gall/m
UK gall/h
US gall/m
US gall/h
1699.017 0.000472
28.3168
-
272.766 0.0000758
4.54609
-
227.125 0.0000631
15.85032
0.004403
15850.3
4.402863
7.480517
0.124675
1.20095
0.020016
1
0.016667
US gall/h
951.019
0.264172
951019
264.1718
448.831
7.480517
72.057
1.20095
60
1
kW
0.000293
0.001
0.001163
1
Cal
251.996
25 199 600
0.2388
238.85
1
(dm
3
/sec)
1
0.000278
1000
0.277778
0.471947
0.007866
0.075768
0.001263
0.06309
0.001052
L/h
3600
1
3600000
1000
m
3
/s
0.001
-
1
0.000278
m
3
/h
3.6
0.001
3600
1
1.699017
0.028317
0.272766
0.004546
0.227125
0.003785
Therm
0.00001
1
-
0.000009478
0.0039683 x 10
-5
Btu/lb °F
1
0.00023
Btu/ft
2
h
1
0.3169
0.368
cfm
2.118882
0.000588
2118.88
0.588578
1
0.016667
0.160544
0.002676
0.133681
0.002228
W
0.293071
1
1.163
1000
ft
3
/h
127.133
0.035315
127133
35.3147
60
1
9.63262
0.160544
8.020832
0.133681
J
1055.06
-
1
1000
4.1868
UK gall/m
13.19814
0.003666
13198.1
3.66615
6.228833
0.103814
1
0.016667
0.832674
0.013878
UK gall/h
791.8884
0.219969
791889
219.969
373.73
6.228833
60
1
49.96045
0.832674
US gall/m
-
Btu/h
1
3.41214
3.96832
3412.14
Btu
1
100000
0.00094
0.9478
0.0039683
3.785411
Table 7 Power
From To Ô
Btu / h
W
kcal / h
kW
Table 8 Energy
From To Ô
Btu
Therm
J
kJ
Cal
Table 9 Specific heat
From To Ô
Btu/lb °F
J/kg °C
Table 10 Heat flowrate
From To Ô
Btu / ft
2
h
W / m
2
kcal / m
2
h
Table 11 Thermal conductance
kcal/h
0.251996
0.859845
1
859.845
1.055
105 500
0.001
1
-
kJ
J/kg °C
4186.8
1
From To Ô
Btu/ft
2
h °F
W/m
2
°C
kcal/m
2
h °C
Table 12 Heat per unit mass
From To Ô
Btu / lb
kJ / kg
Table 13 Linear velocity
From To Ô
ft / min
ft/s
m / s
Btu/ft
2
h °F
1
0.176110
0.204816
Btu/lb
1
0.4299
ft/min
1
60
196.850
W/m
2
3.154
1
1.163
W/m
2
°C
5.67826
1
1.163
kcal/m
2
h
2.712
0.859
1
kcal/m
2
h °C
4.88243
0.859845
1
m/s
0.00508
0.3048
1
kJ/kg
2.326
1
ft/s
0.016666
1
3.28084
Temperature conversion
Can be achieved by using the following formula:
°F = (°C x 1.8) + 32
°C = (°F - 32) 1.8
Additional information
Atmosphere - (standard reference)
Fluid power users are sometimes confused by Nm3. This is not
Newton-metres3 but refers to meters3 ANR, i.e. a volume of air
measured against the standard or normal atmosphere reference.
The equivalent imperial term is S.C.F. (Standard Cubic Feet).
Litre
The symbol l is being superceded by L to avoid confusion with 1 (one).
1 L = 1 dm3.
bar
1 bar = 100 kPa = 100 kN/m2.
kg/cm2
This unit is still used in some areas. The conversions are as follows:
1 kg/cm2 = 0.980665 bar = 0.967841 atmos = 14.2233 psi
A.N.R. (Atmosphère Normale de Référence) ISO R558.
This is the agreed atmosphere to control specification values and
test results, as given in ISO R554.
Pneumatic fluid power uses 1013 mbar, 20°C, 65% RH (ISO R554).
Compressor and pneumatic tool industries prefer 1000 mbar, 20°C,
65% RH (ISO 2787).
Aerospace, Petroleum and British Gas Industries prefer 1013 mbar,
15°C, Dry (ISO 2533 and ISO 5024).
TI-GCM-03 CM Issue 6
Conversion Tables
11.2.2
