The tools
Three calculators and one method, no account, no limit. They do arithmetic you could do by hand — their value is that they forget nothing: the shipping, the fixed fees, and the purchase price everyone underestimates.
Which one do you need?
| Your question | The tool |
|---|---|
| Is this piece worth buying at all? | Profit margin calculator |
| What do I actually take home on a Vinted sale? | Vinted fees |
| How much does the eBay commission take? | eBay fees |
| What does this piece resell for? | The estimating method |
All three calculators run the same engine: sale price, purchase price, shipping you pay for, commission and fixed fees. What changes from one page to the next is the default values, and what you need to know about the platform to fill them in properly.
Amounts are in euros here. These platforms bill in the currency of the market you sell on, so if that is not the euro, read the € signs as your own currency — the arithmetic is identical. We would rather leave the symbol alone than convert at a rate we cannot keep current, which is the same reason no fee percentage is printed on this page.
Why they are free, and why there is no account
Because they cost nothing to run. The maths happens in your browser: nothing is sent anywhere, nothing is stored, no email address is asked for. A form that adds up five numbers has no business demanding an account, and we cannot see an honest argument for putting one in the way.
Price estimates are a different matter. Each one calls a model and searches a corpus of completed sales. That cost is real, so it is charged — through a free account capped at 10 estimates a month, one every 12 hours, or one at a time with no account. That is what separates the calculators, free here, from the estimate.
What a calculator does not replace
These tools work on one item, at one moment. They know nothing about your stock, your selling pace or the pieces that never move. And the decisions that decide whether reselling pays are taken across dozens of items at once: which category shifts quickly, which sourcing spot is worth the trip, which stock to clear before it costs more than it returns.
That is the structural limit of any per-item calculation, and it is better said here than discovered later. Margin and turnover tracking is the part that measures it.
Free account — 10 estimates a month
Read next: Profit margin calculator · Estimating a resale price