USGS

Public Water-Supply Systems and Associated Water Use in Tennessee, 1995



CONVERSION FACTORS AND VERTICAL DATUM
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	           Multiply	          By	        To obtain
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                    gallon (gal)	3.785	     liter
                    gallon (gal)	0.003785     cubic meter
     gallon per minute (gal/min)	0.06309	     liter per second
          gallon per day (gal/d)	0.003785     cubic meter per day
          million gallons (Mgal)    3,785	     cubic meters
million gallons per day (Mgal/d)	0.04381	     cubic meters per second
                      inch (in.)	2.54	     centimeter
                       foot (ft)	0.3048	     meter
                       mile (mi)	1.609	     kilometer
               square mile (mi2)	2.590	     square kilometer
                cubic foot (ft3) 	0.02832	     cubic meter
             acre-foot (acre-ft)    1,233	     cubic meter
             acre-foot (acre-ft)	3.26 x 105   gallon
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Sea level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929--a geodetic datum derived from a general adjustment of the first-order level nets of the United States and Canada, formerly called Sea Level Datum of 1929.

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