USPS mailing prices and cost breakdown for shipping. The data and tables below show current and historical USPS pricing changes in USD. Prices are updated automatically whenever they change.
USPS Pricing Changes
USPS Price History Tabs
January 19, 2026 USPS Pricing
As of January 19, 2026, the pricing plans for USPS are as follows:
| Type | Description / Size | Price (USD) |
|---|---|---|
| Flat Rate Envelope | 12-1/2" x 9-1/2" | $33.25 |
| Legal Flat Rate Envelope | 15" x 9-1/2" | $35.50 |
| Padded Flat Rate Envelope | 12-1/2" x 9-1/2" | $34.15 |
| Small Flat Rate Box | Inside: 8-5/8" x 5-3/8" x 1-5/8" Outside: 8-11/16" x 5-7/16" x 1-3/4" |
$12.65 |
| Medium Flat Rate Boxes |
Inside: 11" x 8-1/2" x 5-1/2" Outside: 11-1/4" x 8-3/4" x 6" Inside: 13-5/8" x 11-7/8" x 3-3/8" Outside: 14-1/8" x 12" x 3-1/2" |
$22.95 |
| Large Flat Rate Box |
Inside: 12” x 11-3/4" x 5-1/2" Outside: 12-1/4" x 12" x 6" |
$31.50 |
| APO/FPO/DPO Flat Rate Box |
Inside: 12" x 11-3/4" x 5-1/2" Outside: 12-1/4" x 12" x 6" |
$30.15 |
View detailed USPS January 2026 Prices.
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