USPS Package Rate Estimator
Calculate estimated shipping costs based on current retail rates.
Estimated Shipping Cost:
Understanding USPS Shipping Rates
Calculating USPS package rates involves more than just weighing your box. The United States Postal Service determines prices based on four primary factors: weight, dimensions, distance (zones), and the speed of service selected. This calculator helps you estimate the retail cost for shipping within the United States.
How USPS Zones Affect Cost
The USPS doesn't charge by exact mileage. Instead, they divide the country into zones based on the distance between the origin and destination zip codes. Zone 1 is local, while Zone 8 or 9 covers long distances like New York to Hawaii. The further your package travels, the higher the rate.
Dimensional Weight (DIM)
For larger, lightweight packages, USPS uses "Dimensional Weight." If your package exceeds 1 cubic foot (1,728 cubic inches), the rate is calculated based on the volume rather than the actual weight. This is why it's crucial to enter accurate length, width, and height measurements.
Service Type Comparison
- Ground Advantage: The most affordable option for packages up to 70 lbs. It replaces First-Class Package Service and Retail Ground.
- Priority Mail: A mid-tier service that includes $100 of insurance and generally arrives within 1-3 business days.
- Priority Mail Express: The fastest service available, offering overnight delivery to most locations with a money-back guarantee.
Example Calculation
Suppose you are shipping a 5lb package in a 12x12x12 box from Zone 1 to Zone 5:
- Ground Advantage: Approximately $12.00 – $15.00
- Priority Mail: Approximately $18.00 – $22.00
- Priority Mail Express: Approximately $65.00+
Note: These rates are estimates for retail pricing. Commercial rates (available through online shipping platforms) are typically 10-40% lower.