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Scientific Investigations Report 2007–5102

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5102

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Conversion Factors and Datums

Conversion Factors

Multiply By To obtain
inch (in.) 2.54 centimeter (cm)
foot (ft) 0.3048 meter (m)
mile (mi) 1.609 kilometer (km)
acre 4,047 square meter (m2)
acre 0.4047 hectare (ha)
acre 0.4047 square hectometer (hm2)
acre 0.004047 square kilometer (km2)
square mile (mi2) 2.590 square kilometer (km2)
square kilometer (km2) 0.3861 square mile (mi2)
acre-foot (acre-ft) 1,233 cubic meter (m3)
cubic foot (ft3) 0.02832 cubic meter (m3)
cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s)

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

°C = (1.8 x °C) + 32.

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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