how many first class stamps does it take to mail a 4 oz letter and package
As of 2016, a 2.5 ounce envelope it would cost 93 cents (one Forever stamp plus two extra ounces).
93 fluid ounces = 11.625 cups
how many stamps for a 3.4oz envelope
2
two
2.4
78 cents
-2 and 1/2
what stamp amount is needed if the letter is 15 oz.?
Currently in the US up to one ounce is 45 cents. So however many stamps it takes to make that amount.
2 stamps. ! stamp is good for up to one ounce, 21 cents for second ounce.