Postal Information Center
Letter
Small rectangular mailpiece no thicker than 1/4 inch
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 | $0.26 |
| 1 oz | $0.41 |
| 2 oz | $0.58 |
| 3 oz | $1.75 |
| 3.5 oz | $1.92 |
For Square Envelopes, heavier weights, or unusually shaped letters… Letters are subject to a $0.17 surcharge if they have non-machinable characters.
Large Envelope
Flat rectangular mailpiece no thicker than 3/4 inch
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 | $0.80 |
| 2 oz | $0.97 |
| 3 oz | $1.14 |
| 4 oz | $1.31 |
| 5 oz | $1.48 |
| 6 oz | $1.65 |
| 7 oz | $1.85 |
| 8 oz | $1.99 |
| 9 oz | $2.16 |
| 10 oz | $2.33 |
| 11 oz | $2.50 |
| 12 oz | $2.67 |
| 13 oz | $2.84 |
If more than 13 ounces, see Priority Mail.
