How much is a first class stamp?
user
There are multiple answers to that question!  The rate for domestic mail in the United States is 49 cents (USD) per one ounce.
assistant
How much is a first class stamp?
user
Great question! I have found a number of ways to quickly answer this, and will list them here. There are other ways of calculating this, but these will work well with a printed calculator.
assistant
How much is a first class stamp?