Not really 30grams in 1 ounce?

by Laura

This web site says there are 30 grams in one ounce. But, everywhere I have looked says 28 grams. Which is the correct information? I am not sure which one to follow, and am concerned I will be studying the wrong conversion rates.

reply (by Keith)

Laura, you are absolutely right. About once a month, I get an email about this. Honestly, I am glad when I get them, since it tells me that people are striving for perfection.

Here's the thing; When I started the site, I was on the fence about this very issue. After asking around and doing some research, I discovered that 90% of Pharmacy Tech books and programs rounded all irrational numbers up to the nearest whole number. By doing so, students have a much easier time memorizing them. And, the studying they're doing here is for the purpose of passing the PTCB or ExCPT exams. This site is meant to be a companion for students to use along-side an official program. Therefore, to avoid confusion, I also rounded those numbers up to match what the books and programs report.

Some examples are:

28.3495231 Grams are in 1 ounce (not 30)

29.5735296 mL are in 1 ounce (not 30)

453.59237 grams are in 1 pound (not 454)

473.176473 mL are in 1 pint (not 480)

3785.41178 ml are in 1 gal (not just 3785)

2.2046226218487757 Lb. are in 1 Kg (not just 2.2)

Editorial comment
In my opinion, it's time for the USA to finally get on board with the rest of the world. The 196 other countries who use the METRIC system seem to like it, perhaps we could too? I know that Subway® would have to change the name of the $5 foot long, and McDonalds® would have to call the quarter pounder© by a different name, etc. But we could tough it out and do it. Our cars already have Kilometer marks on the speedometers and most rulers have centimeter lines if you flip them over. All in favor say "aye".

Comments for
Not really 30grams in 1 ounce?

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Feb 10, 2012
by: Anonymous

Royale with cheese!!! GO METRIC!

Aug 18, 2011
by: LOLA


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