How many sheets of normal paper can I send in an envelope with just one stamp?

January 29, 2013

You can send up to 1 ounce via USPS in a regular envelope with one stamp.  This works out to around 5 sheets of “regular” (I used 20 lb 8.5×11) in a #10 (4 1/8 x 9 1/2, “business”) envelope.  That sixth sheet put it over the ounce mark.  How do I know this?  I use an Oxo food scale that I absolutely LOVE!  See the USPS Postage Price Calculator for more info.


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