The most-accurate answer requires much more information... _Originating country _Destination country _Size/shape envelope _total WEIGHT of filled envelope _level of service (overnight, 2nd-day, whenever) etc. In the USA, this can cost from about $1, to about $20. Assuming this is a USA question, the USPS provides an easy-to-use rate calculator at: http://postcalc.usps.gov/ (or see "Related Link", below.) Hint: You'll need to have the information (above) ready.
If you need to mail 10 sheet of paper, you need to put two stamps on the package. You can fold it in an envelope or put it in a manila envelope.
One sheet of paper weighs bout 1/6 of an ounce. The cost to mail 30 sheets of paper may be estimated using a scale. The post office can give the exact amount shipping will cost based on the weight, the method of shipping, and the place the paper is being shipped to.
As long as the envelope doesn't weigh too much (If you're just mailing paper, then it probably doesn't) then no it doesn't cost more.
it did not cost nothing
One letter would cost 44 cents in postage.If you consider the cost of paper and envelope it could be up to $1 depending on the type of stationary.
I went to the post office today (1/07/11) and one manilla envelope (without the metal fastener) with one piece of paper in it cost $.88 - it weighed 1 ounce. The second envelope contained 8 pages and weighed 3 ounces and cost $1.22. So by my calculations the envelope alone weighed about an ounce and 8 sheets of 8.5x11" weighs 2 ounces. Hope that helps.
I went to the post office today (1/07/11) and one manilla envelope (without the metal fastener) with one piece of paper in it cost $.88 - it weighed 1 ounce. The second envelope contained 8 pages and weighed 3 ounces and cost $1.22. So by my calculations the envelope alone weighed about an ounce and 8 sheets of 8.5x11" weighs 2 ounces. Hope that helps.
Probobally $4.00! usually about $6.00
The cost of the envelope apex
The average cost of a ream of paper is around $4 to $8, depending on the brand, quality, and quantity of sheets in the ream. Specialty or eco-friendly paper may cost more.
£2.40
You can by 500 sheet of letter size (11"x8.5") in US$5.00. It cost large paper plant about US$3.00 give nad take few cents.