About E-commerce Seller Toolkit

What this site is

E-commerce Seller Toolkit gives online sellers 11 free tools to work out profit, set prices, understand fees, and plan shipping, plus plain-language guides on the same topics. It is built for Amazon sellers, Shopify store owners, Daraz sellers, small e-commerce businesses, and beginners starting an online store, in the USA, the UK, Pakistan, and anywhere else.

How it works

• Every tool is free. There is no login, no signup, and no account.
• The calculators run in your browser. Your numbers are not sent to a server or saved in a database.
• Every tool page shows its formulas and a worked example so you can check how a result was reached.
• Money math uses decimal arithmetic to avoid the small rounding errors of ordinary floating-point numbers.

Why fees are never hardcoded

Marketplace and payment fees change by category, country, plan, and date. To avoid showing outdated numbers as if they were facts, the Shopify, Amazon FBA, and Daraz calculators ask you to enter the rates from your own seller account. Anything shown is an estimate based on what you enter.

Important notes

Results are estimates for planning and education. They are not financial, tax, or legal advice, and they are not guaranteed. Read our Terms of Use and Privacy Policy for details, or contact us if you find a calculation that looks wrong.

Browse all 11 free tools or read the seller guides