The minimum size for First-Class Mail is 5 inches long, 3-1/2 inches high,
and 0.007 inch thick.
Pieces weighing 1 ounce or less may be subject to the nonmachinable surcharge.
First-Class Mail Rates
First ounce $0.39
Each additional ounce $0.24
First-Class Mail Rates
Weight not over (ounces) | Rate |
---|---|
1 | $0.39 |
2 | 0.63 |
3 | 0.87 |
4 | 1.11 |
5 | 1.35 |
6 | 1.59 |
7 | 1.83 |
8 | 2.07 |
9 | 2.31 |
10 | 2.55 |
11 | 2.79 |
12 | 3.03 |
13 | 3.27 |