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  Conversion Tables & Factors
 
 
 
Conversion Factors
Multiple
By
To obtain
Liters
0.22009
Gallons (U. K)
Liters
1.76072
Pints
Metres
3.2808
Feet
Metres
1.093614
Yards
Metric Tonnes
0.98421
Tons (U.K.)
Miles
1.609343
Kilometres
Millimetres
0.03937
Inches
Ounces
28.34953
Grams
Pints
0.56795
Litres
Pounds
0.4536
Kilograms
Sq. Centimetres
0.15500
Square Inches
Square Feet
0.09290
Square Metres
Square Inches
6.45163
Sq. Centimetres
Square Kilometres
0.386102
Square Miles
Square Metres
0.0002471
Acres
Square Metres
10.76387
Square Feet
Square Metres
1.19599
Square Yards
Square Miles
640.00
Acres
Square Miles
2.58999
Square Kilometres
Square Yards
0.83613
Square Metres
Tons (U.K.)
1.01605
Square Tonnes
Tons (U.K.)
1016.0470
Kilograms
Yards
0.914399
Metres
Acres
0.404686
Hectares
Acres
4047.00
Square Metres
Acres
0.001562
Square Miles
Centimetres
0.393701
Inches
Cubic Centimetres
0.061024
Cubic Inches
Cubic Feet
6.228
Gallons
Cubic Feet
0.02832
Cubic Metres
Cubic Inches
16.3871
Cubic Centimetres
Cubic Metres
35.31445
Cubic Feet
Cubic Metres
1.30794
Cubic Yards
Cubic Yards
0.76456
Cubic Metres
Feet
0.3048
Metres
Gallons
0.1606
Cubic Feet
Gallons (U.K.)
4.536
Litres
Grams
0.03527
Ounces
Hectares
2.47105
Acres
Horsepower
0.7457
Kilowatts
Inches
2.539998
Centimetres
Inches
25.39998
Millimetres
Kilograms
2.204620
Pounds
Kilograms
0.0009842
Tons (U.K.)
Kilometres
0.621372
Miles
Kilowatts
1.341
Horsepower
 
     
 
Conversion Table
UNITS OF PRESSURE
Units x Factor
To
obtain
Atm
kg/cm2
Psi
mmHg
Bars
In/H2O
M/H 2O
1 atm = 760 mm Hg
 
1.0
1.033
14.70
760
1.013
407.1
10.34
1 kg/cm2
 
0.9678
1.0
14.22
735.6
0.9807
394.1
10.01
1 psi (pounds per square inch)
 
0.06805
0.07031
1.0
51.71
0.06895
27.70
0.7037
1 torr = 1/760
atm = 1 mm Hg
 
1.360
x 10-3
1.316
x 10-3
19.34
x 10-3
1.0
1.333
x 10-3
0.5357
0.0136
1 bar = 10 6 dyne/cm2
 
0.9869
1.020
14.50
750.1
1.0
401.8
10.21
In/H 2 0 (Inches of Water at 15°C)
 
2.456
x 10-3
2.538
x 10-3
0.0361
1.867
2.489
x 10-3
1.0
0.0254
M/H 2 0 (Metres of water at 15°C)
 
0.0967
0.0999
1.421
73.49
0.098
39.37
1.0
 
     
 
Conversion Table
UNITS OF VACUUM
Measurement
kg/cm'
BAR
in WG
in Hg
PSI
mm Hg TORR
mm WG
1 kg/cm3
1.0
0.981
393.7
28.94
14.22
736
10000
1 BAR
1.02
1.0
401.6
29.53
14.5
750
10210
1 in WG
0.00254
0.00249
1.0
0.0736
0.0361
1.87
25.4
1 in Hg
0.0346
0.0339
13.6
1.0
0.491
25.4
345.4
1 PSI
0.0703
0.0689
27.68
2.035
1.0
51.7
703.1
1 mm Hg TORR
0.0014
0.0013
0.54
0.04
0.02
1.0
13.6
1 mmWG
0.0001
0.0001
0.04
0.003
0.0015
0.07
1.0
 
     
 
Conversion Table
UNITS OF FLOW
Units x Factor
To
obtain
gpm
1/min.
1/hr.
Cfh
cfm
m3/min
m3/hr.
gpm (gallons per minute-U.S.A. gals)
1.0
3.785
227.1
8.021
0.1337
3.785 x 103
0.2271
1/min. (Iitres per minute)
0.264
1.0
60.0
2.119
0.035
1 x 103
60 x 103
Dm3/sec.
15.84
60
3600
127.14
2.10
60 x 103
3.6
1/hr. (litres per hour)
0.0044
16.66
x 10-3
1.0
0.035
05885 x 10-3
16.67
x 10-3
1 x 10-3
cfh (cubic feet per hour)
0.1247
0.472
28.32
1.0
16.67
x 10-3
0.472
x 10-3
28.32
x 10-3
cfm (cubic feet per minute)
7.481
28.32
1699.
60
1.0
28.32
x 10-3
1.6992
m3/min. (cubic metre per minute)
264.2
1000.
60 x 103
2119.
35.31
1.0
60.
M3/hr. (Cubic metre per hour)
4.403
16.67
1000.
35.31
0.588
16.67
x 10-3
1.0
 
     
 
TABLE OF PRESSURE EQUIVALENTS
 
bar
kPa
KN/m2
Kilopascal
kg/cm2
kilogrammes
per square
Centimetre
cm Hg
centimeters
head of
mercury
(std)
atm
standard
atmosphere
in Hg
inches
head of
mercury
(std)
ft water
feet
head of
water
(std)
lb/in2
pounds
per
square
inch
bar
1.0
100
1.0197
75.006
0.98692
29.530
33.455
14.504
kpa
0.01
1.0
0.010197
0.75006
0.009869
0.2953
0.33455
0.14504
kg/cm2
0.98067
98.067
1.0
73.556
0.96784
28.959
32.808
14.223
cm Hg
0.013332
1.3332
0.013595
1.0
0.013158
0.39370
0.44603
0.19337
atm
1.0133
101.33
1.0332
76.000
1.0
29.921
33.899
14.696
in Hg
0.033864
3.3864
0.034532
2.5400
0.033421
1.0
1.1329
0.49115
ft water
0.029891
2.9891
0.030480
2.2420
0.029500
0.88267
1.0
0.43353
lb / in2
0.068948
6.8948
0.070307
5.1715
0.068046
2.0360
2.3067
1.0
 
     
 
   
     
 
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