SHIPPING TOOLSMeasure your parcels.
Measure your parcels.
Compare your options.
From parcel dimensions and rates to carrier fit, zones and onboarding. Find the right tool for your next shipping decision.
- Parcel calculations
- Rate comparisons
- Onboarding readiness

START WITH A PARCEL
Everyday shipping calculations
Have your ZIP codes, weight and dimensions ready.
RATE CALCULATOR
Shipping rate comparison
Enter ZIP codes, weight and dimensions to compare available quotes.
Compare rates PARCEL CALCULATORDimensional weight calculator
Enter dimensions, actual weight and a DIM factor to review billable weight.
Calculate DIM weight PACKAGE CHECKPackage size checker
Review volume, longest side and girth to spot packaging risks.
Check a packageMore tools for the work ahead
Find your next step by the task you are working on.
Carrier fit & cost planning
USPS zones
BEFORE YOU START
Make the results useful
Each tool offers a different perspective for your next comparison or conversation.
Which tool should I start with?
Start with rate comparison for a known shipment, or use DIM and size tools to review packaging. Explore the other categories for carrier fit, zones and onboarding.
Are tool results the final shipping charge?
No. Quotes, weight calculations and fit recommendations serve different purposes. Final charges depend on the service, account rates, carrier measurements and applicable charging rules.
Can I use these tools before API integration?
Yes. Use the public tools to prepare parcel and business details before evaluating portal, Excel or API onboarding.