Some people may not know about google doing math and unit conversions right in the main google search tool.
It does things like convert grams to ounces, basic math etc.
The format is like:
15 g = ? oz
Then hit enter.
I recently used it to do a bit more:
133 g/m^2 = ? oz/yd^2
(yes they were different brands of insulation and yes that matters)
Or if you use firefox, the
google search box works and does not require you to hit enter, instead prompting you with the answer at each step..
FYI

