It depends on what country you are posting from, where to and, possibly, the weight of the package.
Postage is determined by weight and by size. An envelope with three pieces of normal paper can normally be sent with one first class postage stamp. Additional stamps may be required based on additional ounces and on the size of the envelope.
Not all paper has the same thickness or size, but if you are using the most usual type of paper, you can mail four sheets with one regular stamp.
Depends on the type and size of the page and envelope.
a postage stamp.
For flat paper items, postage goes by weight, not by size.
It is not the size of the envelope that matters, it is the weight - it is probably best to have the package weighed at the Post Office to obtain the correct postage.
US Mail standard envelope up to 1 ounce in weight needs a 42 cent stamp (or any combination of stamps that total 42 cents.)
You can typically mail one letter-size page in a business envelope with one first-class stamp. If you include additional pages, the envelope may exceed the weight limit for a single stamp (1 ounce). For every additional ounce, you'll need to add more postage. It's always best to check with your local postal service for the most accurate and current guidelines.
One 49-cent stamp should be all that is needed.
Postage is determined by weight and by size. An envelope with three pieces of normal paper can normally be sent with one first class postage stamp. Additional stamps may be required based on additional ounces and on the size of the envelope.
What is the standard-size large envelope?
If it fits in a standard business size envelope, regular domestic postage stamp.
Not all paper has the same thickness or size, but if you are using the most usual type of paper, you can mail four sheets with one regular stamp.
You can send up to five sheets of paper in a regular or business size envelope for one 42¢ stamp, to any state.
For a standard size envelope it is 44 cents.
Postage from the US to Canada for a standard letter is 75 cents.
The standard size business envelope is the number ten. The number ten envelope is open sided with a commercial style flap.