USGS - science for a changing world

Scientific Investigations Report 2008–5044

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5044

Back to Table of Contents

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)
gallon (gal) 0.003785 cubic meter (m3)
million gallons (Mgal) 3,785 cubic meter (m3)
gallon per minute (gal/min) 0.06309 liter per second (L/s)

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 National Geodetic Vertical Datum of 1929 (NGVD 29).

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

Altitude, as used in this report, refers to distance above or below (-) the vertical datum.

Back to Table of Contents

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America logoUSA.gov logoU.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/sir/2008/5044
Page Contact Information: Publications Team
Page Last Modified: Thursday, 10-Jan-2013 18:49:54 EST