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Scientific Investigations Report 2007–5044

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5044

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Conversion Factors and Datums

Conversion Factors

Multiply By To obtain
acre-foot (acre-ft) 1,233 cubic meter (m3)
cubic foot per day (ft3/d) 0.02832 cubic meter per day (m3/d)
cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s)
foot (ft) 2.54 centimeter (cm)
foot per day (ft/d) 0.3048 meter per day (m/d)
foot squared per day (ft2/d) 0.09290 meter squared per day (m2/d)
inch (in.) 2.54 centimeter (cm)
mile (mi) 1.609 kilometer (km)
square mile (mi2) 2.590 square kilometer (km2)

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:

°F = (1.8 × °C) + 32.

Temperature in degrees Fahrenheit (°F) may be converted to degrees Celsius (°C) as follows:

°C = (°F - 32) / 1.8.

Datums

Vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88).

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).

Altitude, as used in this report, refers to distance above the vertical datum.

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