Postal Information Center

Letter

Small rectangular mailpiece no thicker than 1/4 inch

Letter

Size:

Dimension

Minimum

Maximum

Height 3-1/2 inches 6-1/8 inches
Length 5 inches 11-1/2 inches
Thickness 0.007 inch 1/4 inch

Rates:

Weight

Rate

Postcard $0.28
1 oz $0.44
2 oz $0.61
3 oz $0.78
3.5 oz $0.95

For Square Envelopes, heavier weights, or unusually shaped letters… Letters are subject to a $0.20 surcharge if they have non-machinable characteristics.

Large Envelope

Flat rectangular mailpiece no thicker than 3/4 inch

Large Envelope

Size:

Dimension

Minimum

Maximum

Height 6-1/8 inches 12 inches
Length 11-1/2 inches 15 inches
Thickness 1/4 inch 3/4 inch

Rates:

Weight

Rate

1 oz $0.88
2 oz $1.05
3 oz $1.22
4 oz $1.39
5 oz $1.56
6 oz $1.73
7 oz $1.90
8 oz $2.07
9 oz $2.24
10 oz $2.41
11 oz $2.58
12 oz $2.75
13 oz $2.92

If more than 13 ounces, see Priority Mail.