# How many stamps do I need per ounce?

### Table of Contents

- How many stamps do I need per ounce?
- How many stamps do I need for 3.5 oz?
- How many stamps do I need for a 4 oz 6x9 envelope?
- How much postage for a 9x12 envelope that weighs 4 oz?
- How many stamps do I need for a 4 oz large envelope?
- How many stamps do you need for 6 oz?
- How many stamps do I need for a large envelope?
- What's the price of an ounce of Forever stamps?
- How many forever stamps do I need to mail?

### How many stamps do I need per ounce?

Domestic Letter Shipping — Price Per Ounce. **1 x Domestic Forever Stamp**. This will cost you 55 cents. 1 x Domestic Forever Stamp and 1 x 15 cent Additional Ounce stamps.

### How many stamps do I need for 3.5 oz?

Manila Envelope Postage 2 or 3-ounce Envelope require 2 stamps, and **a 3rd stamp** is necessary for 3.5 ounce Envelope, the maximum weight allowed before moving back into the flats category. Manila envelopes weighing more than 1 oz will cost more than 88 cents.

### How many stamps do I need for a 4 oz 6x9 envelope?

**50 first class rate stamp**. For each additional ounce, you'll have to pay $0.21.

### How much postage for a 9x12 envelope that weighs 4 oz?

Two First Class stamps will cover the cost of a 9x12 envelope that weighs an ounce or less. A First Class stamp has a value of $0.55, but the price to mail a large envelope is only **$1.00**, so you'll technically be paying an extra $0.10 for the convenience of using stamps.

### How many stamps do I need for a 4 oz large envelope?

**4 x Domestic Forever Stamps**, 1 x 5 cents stamp, plus 1 x 15 cents Additional Ounce stamp. This will cost you $2.40 in total. You can also overpay by using 5 x Domestic Forever Stamps.

### How many stamps do you need for 6 oz?

Alternatively, you can use 4 x Domestic Forever Stamps instead. Just bear in mind that you’ll be overpaying by 40 cents. 6 oz: 3 x Domestic Forever Stamps plus 1 x Postcard stamp. This will cost you $2 in total. If you want to overpay, use 4 x Domestic Forever Stamps. 7 oz: 4 x Domestic Forever Stamps. This will cost you $2.20 in total. 8 oz

### How many stamps do I need for a large envelope?

How many stamps do I need for a large envelope? Also known as flats, large envelopes are for mailing photos and sheets of legal paper. For a 1-oz. legal size envelope (9 ½” x 15”), you will need two Forever stamps for a total cost of $1.10. There are also extra postage fees for each additional ounce.

### What's the price of an ounce of Forever stamps?

Global forever stamps went from $1.15 to $1.20. (Your old, round global stamps are also forever stamps now worth $1.20.) In addition, rates on additional ounces for flats (large envelopes) went up by $0.05 per additional ounce for domestic flats and changed for international flats as well.

### How many forever stamps do I need to mail?

Any combination of stamps that exceeds $0.85 will be fine. It is best to use the Postal website to calculate postage, keep in mind the current value of the Forever stamp. At this time your envelope should mail for 3.50 or 7 of the .50 cent forever stamps.