GetShipMargin
Free to use · No sign-up required · Transparent formulas

Free Ecommerce Calculators & Seller Tools

Price products, protect profit, plan inventory, control shipping costs, and create essential ecommerce documents—all in one practical toolkit.

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Popular shipping calculator

Free · no sign-upRule: generic-dim-v1
Package inputs
Use outside package dimensions. Your result stays on this device unless you choose to save it.
Generic DIM scenario
Live result Deterministic
Shipping intelligence
No AI estimates. Every output comes from the published formula.

Your result will appear here

Enter package data and calculate. No account is required.

No sign-up before results No invented shipping rates Versioned formulas

Popular next steps

Shipping MarginEconomicsMargin & MarkupProfitabilityLanded CostFreightReorder PointInventory

Run a healthier ecommerce operation

Make faster decisions with fewer spreadsheets.

Browse all 35 tools

Price for a real profit

Calculate margin, markup, discounts, landed cost, ROAS, and maximum CPA.

Plan inventory with confidence

Estimate turnover, reorder points, safety stock, and free-shipping thresholds.

Pack and ship efficiently

Compare billable weight, CBM, pallet loading, box fit, and marketplace fees.

Rules you can inspect, not magic numbers.

A rule must have a source, effective date, version, and verification status before it can power a production calculation.

USPS July 12, 2026 rule verified
UPS and FedEx stay locked until verified
Formula versions appear with results
No live rates means no fake dollar savings