Conversion Factors, Non-SI to 

 SI (Metric) Units of 

 Measurement 



Non-SI units of measurement used in figures, plates, and tables of this report can be 

 converted to SI (metric) units as follows: 



Multiply 



By 



To Obtain 



acres 



4046.856 



square meters 



cubic feet per second 



28.32 



liters per second 



cubic yards 



0.7646 



cubic meters 



degrees (angle) 



0.01745329 



radians 



feet 



30.48 



centimeters 



feet 



0.3048 



meters 



feet per second 



0.3048 



meters per second 



inches 



2.54 



centimeters 



square feet 



0.9290304 



square meters 



square miles (U.S. statute) 



2.589988 



square kilometers 



tons (2,000 pounds, mass) 



907.1847 



kilograms 



