Pounds and kilograms are essential measures of weight in the English and Metric systems respectively. Ounces and grams are the smaller constituent measures for pounds and kilograms, with 16 ounces composing 1 pound and 1,000 grams composing 1 kilogram.
NOTE: The U.S. weights are avoirdupois.
pounds =
= 2.2046 * (kilograms)
kilograms =
= (pounds) / (2.2046) = (pounds) * 0.45359
1 pound =
= 453.59 grams
ounces =
= 0.03527 * (grams)
grams =
= 28.35 * (ounces)
NOTE: While converting weight between kilograms and pounds is common, engineers may distinguish the mass of the object from its weight caused by gravity.
Unit System
Force
Mass
Gravity (Acceleration)
Mks
newton
kilogram
meters per sec^2
Cgs
dyne
gram
cm per sec^2
US/English
pound
slug
ft per sec^2
from Table 5-3, page 91, Resnick and Halliday
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