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Rate Table (Retail) First-Class Mail Flats

Created:   |   Updated:

NOTICE: USPS rates change January 21, 2018. Learn more.

Service and Rate Information

Service:

First-Class Mail is one of USPS's premium services. It is often as fast as Priority Mail with delivery estimated between 1-3 days. Learn more about USPS First-Class Mail.

This is a domestic service. Domestic mail is transported:

  • within, across, and between the United States.
  • from the United States to
    • U.S. territories, Marshall Islands, Federal States of Micronesia. Learn more.
    • U.S. military and diplomatic posts, and the United Nations, NY. Learn more.
Rates:

First-Class Mail rates are based on parcel weights and rate class.

Retail pricing is offered directly from the USPS at Post Office retail locations or USPS.com. It does not include discounts on postage prices like those received via ShippingEasy. Learn more about USPS Retail pricing.

USPS rates are effective as of January 21, 2018. Summary of 2018 rate and service changes.

Compare other services and rates:

 

2017 Rates


FIRST-CLASS MAIL

RETAIL

LARGE ENVELOPES / FLATS

Weight Not Over
(Ounces)
Price
1 0.98
2 1.19
3 1.40
4 1.61
5 1.82
6 2.03
7 2.24
8 2.45
9 2.66
10 2.87
11 3.08
12 3.29
13 3.50

 

 


 

2018 Rates

FIRST-CLASS MAIL

RETAIL

LARGE ENVELOPES / FLATS

Weight Not Over
(Ounces)
Price
1 1.00
2 1.21
3 1.42
4 1.63
5 1.84
6 2.05
7 2.26
8 2.47
9 2.68
10 2.89
11 3.10
12 3.31
13 3.52

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