CONVERSION FACTORS, NON-SI TO SI (METRIC) 

 UNITS OF MEASUREMENT 



Non-SI units of measurement used in this report can be converted to SI (metric) 

 units as follows: 



Multiply 



cubic feet 



Fahrenheit degrees 



feet 



horsepower (.550 foot^ 

 pounds (force) per 

 second) 



inches 



knots (international) 



miles (US statute) 



pounds (force) per 

 square inch 



pounds (mass) 



pounds (mass) per 

 cubic foot 



tons (2,000 pounds, 

 mass) 



By 



0.02831685 

 5/9 



0.3048 

 745.6999 



2.54 



0.5144444 

 1.609347 

 6.894757 



0.4535924 

 16.01846 



907.1847 



To Obtain 



cubic metres 



Celsius degrees or Kelvins* 



metres 



watts 



centimetres 

 metres per second 

 kilometres 

 kilopascals 



kilograms 



kilograms per cubic metre 



kilograms 



To obtain Celsius (C) temperature readings from Fahrenheit (F) readings, 

 use the following formula: C = (5/9) (F - 32). To obtain Kelvin (K) read- 

 ings, use: K = (5/9) (F - 32) + 273.15. 



