Profit margin calculator for second-hand selling

In short: Margin is profit divided by selling price, markup is profit divided by purchase price. Buy for EUR 20 and sell for EUR 30 and the profit is EUR 10, the margin 33.3% and the markup 50%.

FreeNo loginUpdated 28 October 2026

No login needed. Calculates after channel fees and shipping.

Enter what you paid and what you sell for, and you see profit, margin and markup. Or enter your purchase price and the margin you want, and you see which price to ask.

Purchase price

Selling price

Fixed costs (shipping, packaging)

Optional

Channel fees as a percentage of the price

For example eBay's commission. On Marktplaats and 2dehands this is usually 0.

Target margin in percent

Or target markup in percent

The difference between margin and markup

This is where it often goes wrong. Margin is your profit divided by the selling price. Markup is your profit divided by the purchase price. Buy for EUR 20 and sell for EUR 30 and your profit is EUR 10. The margin is 10 divided by 30, so 33.3%. The markup is 10 divided by 20, so 50%.

A margin of 100% does not exist, because you would keep everything as profit. A markup of 100% does: you sell for double your purchase price, and that is a margin of 50%.

The formulas

Profit = selling price minus channel fees minus purchase price minus fixed costs
Margin = profit divided by selling price
Markup = profit divided by purchase price
Price for a target margin = (purchase price + fixed costs) divided by (1 minus channel fees minus margin)

See the fee calculator for what Marktplaats, Vinted and eBay charge. VAT is not included here.

Frequently asked questions

How do I calculate profit margin?

Subtract your purchase price and costs from your selling price. That is your profit. Divide it by the selling price and you have the margin in percent.

What is the difference between margin and markup?

Margin divides the profit by the selling price, markup divides it by the purchase price. The same profit therefore gives a lower margin percentage than markup percentage.

How do I calculate the selling price for a target margin?

Divide your purchase price plus fixed costs by 1 minus your target margin (and minus any channel fees, as a fraction). For EUR 20 purchase and a 40% margin that is 20 divided by 0.6, so EUR 33.34.

What is a good margin for second-hand selling?

There is no fixed answer. It depends on what you lose on shipping, packaging and time. Calculating with your real costs and a fixed minimum per item works better than one percentage for everyone.

Does this calculator include VAT?

No, all amounts exclude VAT. If you sell second-hand goods as a business, the margin scheme lets you pay VAT on your margin.

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