The shipping cost calculator estimates and compares rates from major US carriers — USPS, UPS, FedEx, and DHL — based on package weight, dimensions, and delivery zone so you can choose the most cost-effective option.
How to Compare Shipping Costs
The shipping cost calculator helps e-commerce sellers and businesses find the most cost-effective carrier for each package type. Shipping costs are often 5-15% of e-commerce revenue, so optimizing carrier selection directly impacts profitability.
Dimensional Weight Explained
Carriers charge the greater of actual weight or dimensional weight. Dimensional weight = (L × W × H inches) ÷ 139. A 12×12×12 pillow weighing 1 lb has a dimensional weight of 12.5 lbs — so you'd pay for 12.5 lbs, not 1 lb. Use compact packaging to minimize dimensional weight.
Residential vs. Commercial Surcharges
UPS and FedEx charge $4-5 extra for residential deliveries. For B2C e-commerce, this applies to most shipments. USPS doesn't charge residential surcharges, making it more competitive for residential delivery. Factor this into your shipping strategy if most customers are residential.
FAQ
How do I find the cheapest shipping option?
It depends on weight, size, and speed. USPS is usually cheapest for packages under 1 lb. UPS/FedEx are competitive for 2-10 lb packages. For large/heavy packages, freight carriers beat parcel carriers. This calculator compares rates so you can choose.
What is dimensional weight pricing?
Carriers charge the greater of actual weight or dimensional weight (length × width × height ÷ 139 for domestic). A large but light box (like a pillow) can be billed at its dimensional weight rather than its actual weight, significantly increasing cost.
Are these real-time shipping rates?
This calculator uses estimated base rates for comparison purposes. Actual rates vary by account type, negotiated discounts, fuel surcharges, and address type (residential vs. commercial). Get exact quotes from carrier websites for precise pricing.
Is this calculator free?
Yes, completely free with no signup.