How much does a sheet of paper weigh?

OK…it’s late and I’m trying to prepare for my trip to the Post Office tomorrow. I hate waiting on lines, I don’t have a postal scale, and I’m trying to figure out how much postage to put on my letter. I have 4 sheets of 8.5 x 11 copy paper in a regular envelope…let’s say the envelope weighs the same as a sheet of paper…so I need to figure out how much 5 sheets of paper weigh. :)

Performing a quick Google search, I came across this site.

Basically, the weight of the paper that is listed on the ream(500 sheets) is the weight of 500 sheets of 17″ x 22″ paper (not 8.5 x 11) !
So, from one sheet of 17 x 22, you get four sheets of 8.5 x 11. This means that a ream of 20 pound 8.5 x 11 paper actually weighs only 5 lbs.

5 lbs x 16 oz/lb /500 sheets…one sheet of paper weighs 0.16 ounces
.Check out the USPS Domestic Postage Calculator.

So my postage should be $0.39 because I’m a tad under 1 ounce…but just in case my paper is of a heavier weight, I put $0.63 postage on the envelope…enough for 2 ounces.

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