Shipping Calculator Lab

About

Shipping Calculator Lab provides free planning tools for online sellers, warehouse teams and small businesses. We focus on the measurements and costs that need a clear answer before a label is purchased or a pallet is loaded.

What we publish

Every calculator is designed around a documented formula, editable assumptions and a worked example. Calculations run locally in your browser; no account is required.

What we do not provide

We do not sell postage, compare live rates, classify goods or provide customs advice. Results are planning estimates and should be checked against current provider rules.