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0107 1
16
Notice
Date
Page
01201138
INSTRUCTION
HANDBOOK
16. Appendices
Conversion of measurement units
The following is a list of correspondences of the main frequently used units, to avoid the need
to use measurement unit conversion tables.
bar : 1 bar = 100 000 Pa
1 bar = 1.019 7 kg/cm²
1 bar = 750.06 mm Hg
1 bar = 10 197 mm H
2
O
1 bar = 14.504 psi
british thermal unit : 1 Btu = 1 055.06 J
1 Btu = 0.2521kcal
calorie : 1 cal = 4.185 5 J
1 cal = 10
-6
th
1 kcal = 3.967 Btu
1 cal/h = 0.001 163 W
1 kcal/h = 1.163 W
continental horse power :1 ch = 0.735 5 kW
1 ch = 0.987 0 HP
cubic foot : 1 cu ft = 28.316 8 dm³
1 cu ft = 1 728 cu in
cubic inch : 1 cu in = 16.387 1 dm³
foot : 1 ft = 304.8 mm
1 ft = 12 in
gallon (U.K.) : 1 gal = 4.545 96 dm
3
or l
1 gal = 277.41 cu in
gallon (U.S.A.) : 1 gal = 3.785 33 dm
3
or l
1 gal = 231 cu in
horse power : 1 HP = 0.745 7 kW
1 HP = 1.013 9 ch
inch : 1 in = 25.4 mm
joule : 1 J = 0.000 277 8 Wh
1 J = 0.238 92 cal
kilogramme :1 kg = 2.205 62 lb
kg/cm
2
: 1 kg/cm² = 98 066.5 Pa
1 kg/cm² = 0.980 665 bar
1 kg/cm² = 10 000 mm H
2
O
1 kg/cm² = 735.557 6 mm Hg
pound : 1 lb = 453.592 37 g
meter : 1 m = 1.093 61 yd
1 m = 3.280 83 ft
1 m = 39.37 in
cubic meter :1 m³ = 1 000 dm³
1 m³ = 35.314 7 cu ft
1 dm³ = 61.024 cu in
1 dm³ = 0.035 3 cu ft
pascal : 1 Pa = 1 N/m²
1 Pa = 0.007 500 6 mm Hg
1 Pa = 0.101 97 mm H
2
O
1 Pa = 0.010 197 g/cm²
1 Pa = 0.000 145 psi
1 MPa = 10 bar
psi : 1 psi = 0.068 947 6 bar
thermie : 1 th = 1 000 kcal
1 th = 10
6
cal
1 th = 4.185 5 x 10
6
J
1 th = 1.162 6 kWh
1 th = 3 967 Btu
watt : 1 W = 1 J/s
1 W = 0.860 11 kcal/h
watt-hour : 1 Wh = 3600 J
1 kWh = 860 kcal
yard : 1 yd = 0.914 4 m
1 yd = 3 ft
1 yd = 36 in
temperature degrees :
0 °K = -273.16 °C
0 °C = 273.16 °K
t °C = 5/9 (t °F-32)
t °F = 1.8 t °C + 32