Yes -feewet
In the US, the amount of postage is the same for mailing a letter anywhere within the US. Not sure is additional charge for mailing to Hawaii.
What is the amount of regular postage that you will have to place on the letter?
A Postage Stamp.
This depends on where you are mailing the letter from, and the dimensions and weight of the letter.
Hawai'i is part of the United States, therefore the postage is the same as it would be to or from any other US state if you are using the USPS.
Since HI is a state I would assume that a regular forever stamp is all that is required.
Hawaii is a part of the United States. First Class Postage is 44 cents for the first ounce in 2010.
$1.20
When mailing a letter or package you always use postage purchased in the country you are mailing from. So if you are mailing a letter from the USA to Canada, you would buy stamps at your local post office.
The current postage rate for 1st Class mail is 44 cents to anywhere in the US, including Alaska and Hawaii.
Just 1. Hawaii is zone 8.
Currently an international first class letter of one ounce is 98 cents.