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Conversion Factors, Non-SI
to SI Units of Measurement
Non-SI units of measurement used in this report can be converted to SI units
as follows:
Multiply
By
To Obtain
acres
4,046.873
square meters
cubic yards
0.7645549
cubic meters
1
degrees Fahrenheit
5/9
degrees Celsius or kelvins
feet
0.3048
meters
horsepower (550 foot-pounds
745.6999
watts
force per second)
inches
25.4
millimeters
knots (international)
0.5144444
meters per second
miles (U.S. statute)
1.609347
kilometers
pounds (force) per square inch
0.006894757
megapascals
pounds (mass)
0.4535924
kilograms
tons (force)
8,896.443
newtons
1
To obtain Celsius (C) temperature readings from Fahrenheit (F) readings, use the following
formula: C = (5/9)(F 32). To obtain kelvin (K) readings, use: K = (5/9)(F 32) + 273.15.
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