$1.10
Postage is .45 for a letter 1oz. or less and a large envelope weighing 1oz. or less is .90
Up to 1oz first class postage letter is 98 cents.
how much to mail letter to NZ from US 1oz
The USPS website says it costs $1.05 to send a letter that weighs 1oz or less.
For a normal letter weighing 1oz or less a single first class stamp is all that would be necessary. For letters over 1oz or packages, you can determine the postage amount here:http://postcalc.usps.gov/
The US postage rates to send a letter to Hong Kong are $0.66 for 1oz, $0.86 for 2oz, $1.06 for 3oz, and $1.26 for 3.5oz. Flats start for $1.12 and increases by $0.20 per ounce.
As of April 2009, the postage to send a square greeting card is the standard first class 1oz letter postage of 42 cents, plus a non-machinable charge of 20 cents.
In 2008, postage from the USA to Germany, for up to 1oz letters/postcards, is 90 cents.
It doesn't matter where the letter is being mailed from / to. What matters is weight. If it is a regular <1oz letter, you need one stamp. If it is heavier or in an oversized envelope, it will need additional postage.
The only way anyone could answer this question would be if you told us in the question where you want to mail the letter TO, as well as where you are mailing it from, Peru.
1 if it is a letter and no more than 1oz in weight. You must add more postage for every added ounce. The answer also varies with the class of mail you are sending. Call your local post office for exact amounts.
28.3495231g = 1oz :)