Introduction
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Wherever possible both the metric and American (North and South) measure units have been
used throughout this manual. In most cases the weights and measures have been rounded
upwards where necessary. The following table offers the common metric to American conver-
sion factors used in this manual:
Measure Metric Units American Standard
Units
Conversion Factor
(rounded to nearest
hundredth)
Linear meter (m)
centimeter (cm)
feet (ft.)
inch (in.)
1 m = 3.28 ft.
1 m = 39.37 in.
1 cm = 0.394 in.
Distance kilometer (km) mile (mi.) 1 km = 0.62 mi.
Area square meter (m
2
) square foot (ft
2
) 1 m
2
= 10.76 ft
2
Volume cubic meter (m
3
)
liter (l)
cubic foot (ft
3
)
quart (qt.)
1 m
3
= 35.32 ft
3
1 l = 1.06 qt. (liquid)
Weight kilogram (kg) pounds (lbs.) 1 kg. = 2.21 lbs.
Pressure bar pounds/square inch
(psi)
atmosphere (ATM)
1 bar = 14.51 psi
1 bar = 0.99 ATM
(standard)
Flow (e.g. gas
flow)
cubic meter/minute
(m
3
/min.)
cubic feet/minute (ft
3
/
min.)
1 m
3
/min. = 35.32 ft
3
/
min.
Temperature °C °F F = C × 1.8 + 32
°F °C C = (F - 32) / 1.8
°C K K = C + 273.15
K °C C = K - 273.15
°F K K = (F + 459.67) / 1.8
K °F F = K × 1.8 - 459.67
Magnet Field
Strength
Tesla (T) Gauss (G) 1 T = 10
4
G
Heat Energy BTU/hour kW 1 BTU/hour =
0.000293 kW
BTU = British Thermal Unit which is the required heat to raise 1 pound of H
2
0 by 1 de-
gree Fahrenheit.
SI = International System of Units.
Table1.1: Metric to American Conversion Factors