METRIC CONVERSION FACTORS 



4,047 m^ = 0.04047 ha 



1.233.5 m^= 1.2335 dam^ 



5/9(F°-32) 



0.3937 in. 



0.155 in^ 



LO00m^ = 0.8107 ac-ft 



28.3171 xlO-^m' 



10,000 m^ = 2.471 ac 



100 m = 328.08 ft 



IxlO^m^ 



0.0758 L/s 

 = 2.54 cm 



2.20462 lb = 1.1 X 10-^ tons 



0.62137 miles 



0.3861 mi^ 



0.3532 ft^ = 0.21997 I. gal = 0.26420 U.S. gal 



0.035 cfs = 13.193 I.gpm = 15.848 U.S. gpm 

 m = 3.2808 ft 



m- ■= 10.765 ft^ 



m^ = l,000L = 35.3144ft3 = 219.97I.gal= 264.2 U.S. gal 



mVs = 35.314 cfs 



mm = 0.00328 ft 



tonne = 1 ,000 kg = 1 . 1 023 ton (short) 



U.S. gpm = 0.0631 L/s 



For Air Samples 

 ppm = 100 pphm = 1000 x (Molecular Weight of substance/24.45) mg/m^ 



A4-2 



