Practical numbers for ecommerce decisions
True Seller Profit helps online sellers understand what remains after the costs that revenue dashboards often hide. Our free calculators model product cost, marketplace and payment fees, shipping, packaging, advertising, returns, taxes when relevant, and other seller-entered expenses.
The goal is simple: make it easier to test a product, price, campaign, or fulfillment change before committing inventory or spending more on growth.
What we build
- General ecommerce net profit and margin calculators.
- Platform-focused tools for Shopify, Etsy, and Amazon sellers.
- Pricing, shipping-impact, and break-even ROAS calculators.
- A Profit Scenario Lab for comparing up to three pricing and cost models.
How our calculators are designed
Formulas are displayed in plain language, important costs remain editable, and platform pages link to official fee sources. Review dates and limitations are shown so users can verify assumptions against their own plan, country, category, currency, and payment provider.
Calculator results are estimates for planning. They are not financial, accounting, tax, or legal advice.
Privacy-conscious by default
Calculator inputs are processed in the browser. Scenario comparisons can be stored locally without an account, and analytics loads only when configured and permitted through the site’s consent control. Financial inputs and scenario names are not included in analytics events.
Questions or corrections
Fee structures and ecommerce practices change. If you notice outdated information or have a suggestion, visit the Contact Us page or email sumitappsfactor55@gmail.com.