2.80
how many stamps for a 10.4 ounce 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.
In the US, $1.56.
postage needed for A09 envelope
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.
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.
Domestic postage is $1.39 for an ordinary envelope of uniform thickness.
It depends on the weight It depends on the weight
One
99 cents in a standard envelope.
The answer will depend on where you are posting it to!
no, one first class stamp is all that is needed