Free tools for Etsy, eBay, Shopify & online sellers
Know exactly what you keep from every sale
Free fee calculators, profit and tax tools for sellers in the US, UK, Canada, Australia and India. Each tool shows its formula and the date its fees were checked against the official source.
Etsy Fee CalculatoreBay Fee CalculatorShopify Fee CalculatorProfit Margin CalculatorVAT Calculator (UK)
- 22 free calculators
- Fees last checked 5 Oct 2026
- No sign-up, nothing leaves your browser
Etsy
eBay
Amazon
Shopify
Poshmark, Mercari & Depop
PayPal & Stripe
Pricing & Profit
- Profit Margin CalculatorMargin, markup and the price for a target margin.
- Markup CalculatorCost plus markup, and markup ↔ margin.
- Discount CalculatorSale price with tax, plus the profit you give away.
- Break-Even CalculatorUnits and sales you need to cover your costs.
- Handmade Pricing CalculatorMaterials, time and overheads into a retail price.
- Marketplace Fee CalculatorCommission, fixed and payment fees for any platform.
- How to Price Handmade Products for Profit (Formula)
- Profit Margin vs Markup: Formulas, Table & Examples
VAT, GST & Sales Tax
- VAT Calculator (UK)Add or remove VAT at 20%, 5% or any rate.
- GST CalculatorAdd or remove GST for AU, NZ, Canada and India.
- GST Profit Calculator (India)Profit and margin after GST, with input tax credit.
- Reverse Sales Tax CalculatorPrice before tax from a total, for every US state.
- How to Add or Remove VAT From a Price (UK, 20%)
- GST for Online Sellers in Australia and Canada
Listings, SEO & Shipping
- Meta Title & Description CheckerLength, pixel width and a Google-style preview.
- Product Title Length CheckerOne title checked against every marketplace limit.
- Dimensional Weight CalculatorDim weight and billable weight by carrier.
- How to Write SEO Titles & Meta Descriptions (Examples)
- What Is Dimensional Weight? (Formula & Examples)
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Guides for sellers
All guides →Etsy Fees Explained (2026): Every Fee and How to Calculate Your ProfitA plain-English breakdown of every fee Etsy charges sellers, with worked examples for the US, UK, Canada, Australia and India and a free calculator to check your own numbers.How to Price Handmade Products on Etsy for Profit (With a Simple Formula)Stop guessing your prices. This step-by-step formula covers materials, your time, overheads, Etsy fees and profit, with a full worked example.eBay Fees Explained (2026): Final Value Fees, Per-Order Fees and Promoted ListingsA clear guide to every fee eBay charges sellers, how the final value fee is really calculated, and how to keep more of each sale.Shopify Plans Compared (2026): Which Plan Is Cheapest for Your Store?Compare Shopify’s plans, card processing rates and hidden costs, and work out the exact monthly sales level where upgrading starts to save you money.Etsy vs Shopify vs eBay: Where Should You Sell in 2026?A practical comparison of Etsy, Shopify and eBay – fees on a real sale, who buys on each platform, how much control you get and which is right for you.How to Add or Remove VAT from a Price (UK Guide with Examples)The correct formulas for adding and removing UK VAT, why the most common shortcut is wrong, and the VAT basics every online seller should know.
How we keep the numbers right
Every fee table links to the platform's or government's own page and shows the date it was last verified. Tables are re-checked at least every 90 days and whenever a platform announces a change. If you spot a fee that has changed, tell us and it is fixed first. Read the editorial policy.