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Which Weight Conversion To Use?
Apothecary measurements are used for medications.
Troy measurements are generally for precious metals.
Avoirdupois measurements are used for almost
everything else - they are our "every day" units.

Common weight abbreviations:
pound = lb
ounce = oz
kilogram = kg
gram = g or gr
milligram = mg

To learn more about unit conversions
and everyday math, we recommend:

Measure for Measure
39,000 conversions
for over 5100 units.

Metric for Me!
An easy, everyday guide
to the metric system.

Pocket Ref
A concise reference guide
for virtually any subject.

metric conversion calculator

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