9lbs 15ozs.
The cost of postage depends on how much it weighs and the country where you are mailing it and its destination.
$0.50
98¢
7.2
you need 3 stamps
45 cents
A standard size, one ounce letter has a 45 cent postage rate.
Go to the site below and click on the "Calculate Postage" tab.
A postage scale weighs your parcels and letters to give you an accurate reading of how much the postage will cost. If the price of postage goes up, you simply need to adjust your franking machine accordingly.
The about of postage you need for a 2.2 oz. letter in the United States is $.70. This is for a standard envelope.
The postage rate between US States and US Territories is 45 cents.