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 1 : 



Multiply 



By 



To Obtain 



cubic feet 



0.02832 



cubic metres 



cubic yards 



0.7646 



cubic metres 



feet 



0.3048 



metres 



feet per second 



0.3048 



metres per second 



inches 



2.540 



centimetres 



miles (U.S. statute) 



1.609 



kilometres 



miles (U.S. nautical) 



1.852 



kilometres 



pounds per square inch 



703.1 



kilograms per square metre 



square miles 



2.590 



square kilometres 



knots 



1.852 



kilometres per hour 



Some data examples are presented in English units, in accordance with the units used 

 during the original data collection. 



