APPENDIX 



425 



A Comparison of the Units of Measure Commonly Employed 

 in America with Those of the Metric System 



Length . . 



Weight . . 



Capacity . . 



Work . . 



Heat 



meter (m.) =1000 millimeters (mm.). 



= 100 centimeters (cm.) =39.37 inches. 

 inch =25.4 millimeters. 



foot =30.5 centimeters. 



M= roW millimeter =5Bouff inch (nearly). 



kilogram (kg.) =1000 grams (g.) =2.2 Ib. Avoirdupois. 



gram (g.) =1000 milligrams (mg.) =15.4 grains. 



pound (Avoir.) =453.6 grams, or about kilogram. 



ounce " =28.35 grams =437.5 grains. 



liter (1.) =1000 cubic centimeters (cc.) =2.1 pints. 



fluid ounce =29.57 cubic centimeters. 



pint =16 fluid oz. =473.1 cubic centimeters. 



gallon =3.78 liters. 



cubic inch =16.38 cubic centimeters. 



cubic foot =28.3 liters. 



kilogram-meter (kg.m.) =7.23 foot-pounds. 

 foot-pound =.138 kilogram-meter. 

 foot-ton =276 kilogram-meters. 



1 unit of heat =heat necessary to raise 1 pound of water through 



1 F. 

 1 calorie (Metric) = " 



Mechanical equivalent of heat unit 

 " " calorie 



1 gram 



778 foot-pounds. 

 427 gram-meters. 



