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 | $0.28 |
| 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
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.
