Conversion Factors and Datums


Conversion Factors


Multiply	By	To obtain
foot (ft)	0.3048	meter (m)
mile (mi)	1.609	kilometer (km)
square mile (mi2)	2.590	square kilometer (km2)
cubic foot (ft3)	0.02832	cubic meter (m3)
cubic foot per second (ft3/s)	0.02832	cubic meter per second (m3/s)
cubic foot per second per square mile (ft3/s)/mi2	0.01093	cubic meter per second per square kilometer (m3/s)/km2

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).


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





First posted November 28, 2011