1
Choose a package profile or enter custom dimensions
Set your box size so the estimator can calculate dimensional weight for USPS, UPS, and FedEx.
Free Shipping Cost Estimator
Compare USPS, UPS, and FedEx shipping rates in one place
A shipping cost estimator is a tool that approximates what it will cost to send a package based on weight, dimensions, distance, and service level. This free calculator compares estimated 2026 retail rates across USPS, UPS, and FedEx so you can price shipping before you buy a label.
Shipping cost calculatorPackage shipping cost estimatorDimensional weight included
Estimate your shipping rates
Rates shown below are approximate domestic 2026 retail estimates for planning purposes only. Real checkout costs may vary by residential delivery, surcharges, account discounts, declared value, and carrier-specific rules.
Shipping rate comparison table
Compare approximate retail rates for common services across USPS, UPS, and FedEx. Estimates are based on a domestic zone 4 shipment with a package volume of 840in3.
Billable weight drives price, not just scale weight
| Carrier | Service | Delivery speed | Billable weight | Estimated rate |
|---|---|---|---|---|
| USPS | Ground Advantage Lowest estimate | 2 to 5 business days | 6 lb | $11.83 |
| USPS | Priority Mail | 1 to 3 business days | 6 lb | $16.44 |
| UPS | Ground | 1 to 5 business days | 7 lb | $16.84 |
| FedEx | Ground/Home Delivery | 1 to 5 business days | 7 lb | $17.71 |
| UPS | 3 Day Select | 3 business days | 7 lb | $28.39 |
| FedEx | 2Day | 2 business days | 7 lb | $34.78 |
| USPS | Priority Mail Express | 1 to 2 business days | 6 lb | $42.05 |
| FedEx | Standard Overnight | Next business day | 7 lb | $58.63 |
| UPS | Next Day Air | Next business day | 7 lb | $63.00 |
How to use this shipping rate calculator
2
Enter the actual package weight and destination zone
Use the domestic zone that best matches your shipment distance, from local deliveries to coast-to-coast lanes.
3
Compare carrier and service estimates side by side
Review the billable weight and approximate rates to decide which service level fits your margin and delivery promise.
Shipping cost estimator FAQ
Common questions about package shipping cost, dimensional weight, and how to interpret carrier estimates.
What is a shipping cost estimator?
A shipping cost estimator is a tool that approximates what it may cost to mail a package based on weight, dimensions, distance, and service level. This calculator compares estimated domestic retail rates across USPS, UPS, and FedEx.
How accurate is this shipping rate calculator?
These numbers are best used for planning and pricing, not label purchasing. They are approximate 2026 retail estimates and do not include negotiated account discounts, fuel surcharges, delivery area surcharges, or optional add-ons.
Why does package size change my shipping price?
Carriers often bill based on dimensional weight when a box is large for its actual weight. Bigger packages can therefore price like a heavier shipment even if the contents are light.
Which carrier is usually cheapest for package shipping cost?
For lighter parcels and closer zones, USPS often stays competitive. For larger boxes or faster delivery windows, UPS and FedEx can become more favorable depending on the billable weight and destination zone.
Does this tool include international shipping rates?
No. This free shipping cost estimator is built for domestic U.S. shipping zones 1 through 8 only, using approximate retail pricing logic for common services.