The answer will depend on where you are posting it to!
An envelope with a height exceeding 6 and one-eighths inches, and any square envelope, is non-machinable. Therefore, the rate for first class US domestic postage is $.64.
45 cents
For flat paper items, postage goes by weight, not by size.
Depends on where it is going to!
postage needed for A09 envelope
The answer will depend on where you are posting it to!
How much postage is required for a 6x8 inch card? It weighs less than 1 ounce.
The amount of stamps needed for an envelope is determined by weight. Weigh your a4 envelope and you will know how much postage is needed.
Domestic postage is $1.39 for an ordinary envelope of uniform thickness.
There is not a set price based on the size of the envelope. The final amount of postage will depend on the weight, the destination of the envelope and the thickness and/or the rigidness of the parcel.
thirty-two cents
2.80
In the US, $1.56.
Go to the site below and click on the "Calculate Postage" tab.
99 cents in a standard envelope.
For the first ounce it will be 88 cents. There is an additional charge for the larger size. Each additional ounce is 17 cents.