The postage rates below are no longer current for 6 oz large envelope letters. Please see the $1.92 stamps page for current pricing and information.
If you are mailing your "large envelope" wedding invitations or any other letter the post office deems as a large envelope (sometimes called "Flats") and it weighs 6oz you will need a $1.90 stamp to mail it 1st-class. Letters are considered "large envelopes" or "flats" if they measure greater than 6-1/8 inches high OR 11-1/2 inches long OR 1/4 inch thick. You can determine if your letter is a standard letter or a large envelope by using our postage calculator, but be sure to double-check the weight of your invitations with your local USPS post office.
Zazzle offers thousands of designs for wedding-themed $1.90 stamps as well as all other first-class face values that are approved by the USPS.
- Browse all custom wedding postage stamps
- See rates for all 2013 USPS Stamps
- Other similar face values for wedding stamps:
- $1.52 stamps (1st class large envelope – 4 oz)
- $1.72 stamps (1st class large envelope – 5 oz)
- Determine what postage rate do you need
