Free calculator

Shipping Cost Comparison Calculator

Compare two carriers and see your monthly savings.

Small per-package differences compound fast at volume. Enter the average per-package rate for two carriers and your monthly package count to see which wins and by how much.

Results update when you click Calculate or change a value.

Cheaper option
Savings per package
Savings per month
Savings per year

Monthly savings = |Carrier A rate - Carrier B rate| x packages per month

How it works

Carrier choice is rarely all-or-nothing -- the cheaper carrier varies by weight, zone, and service level. This calculator shows the stakes of a flat per-package difference so you can see why rate shopping every shipment matters.

In practice you don't want to choose one carrier; you want to choose the cheapest valid one per order. Skuwell shops live rates across your carriers at pack time and applies your shipping rules automatically.

Next step

Skuwell does this math for every SKU, automatically.

Reorder points, safety stock, turnover, and GMROI — computed live and turned into purchase orders. See it on a 30-minute walkthrough.

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Founder-led · live system · no commitment