Conversion Factors, Non-SI to 

 SI Units of Measurement 



Non-SI units of measurement used in this report can be converted to SI units as 

 follows: 



Multiply 



By 



To Obtain 



cubic feet per second 



0.02831685 



cubic meters per second 



• degrees (angle) 



0.01745329 



radians 



feet 



0.3048 



meters 



feet per second 



0.3048 



meters per second 



inches 



2.54 



centimeters 



miles (US statute) 



1 .609347 



kilometers 



pounds (mass) 



0.4536 



kilograms 



square feet 



0.09290304 



square meters 



square miles (US statute) 



2.589988 



square kilometers 



tons (2,000 pounds, mass) 



907.1847 



kilograms 



