How much per ounce to mail

The cost to mail an ounce of a package depends on the weight, size, and destination of the package, as well as the type of mail service used. Here are the current rates for the United States Postal Service (USPS):

First-Class Mail

• 1 oz: $0.55
• 2 oz: $0.65
• 3 oz: $0.75
• 4 oz: $0.85
• 5 oz: $0.95

Priority Mail

• 1 oz: $7.50
• 2 oz: $8.25
• 3 oz: $9.00
• 4 oz: $9.75
• 5 oz: $10.50

Priority Mail Express

• 1 oz: $25.50
• 2 oz: $26.50
• 3 oz: $27.50
• 4 oz: $28.50
• 5 oz: $29.50

Regional Rate Boxes

• Regional Rate Box A (up to 1 lb): $8.45
• Regional Rate Box B (up to 2 lbs): $13.45
• Regional Rate Box C (up to 3 lbs): $18.45

Parcel Post

• 1 lb: $7.45
• 2 lbs: $10.45
• 3 lbs: $13.45
• 4 lbs: $16.45
• 5 lbs: $19.45

Keep in mind that these rates are subject to change, so it's always a good idea to check the USPS website for the most up-to-date rates.

It's also worth noting that if your package weighs more than 1 oz, you'll need to pay the rate for the next weight increment. For example, if your package weighs 2.5 oz, you'll need to pay the 3 oz rate.