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Profit margin & markup calculator

Margin is profit ÷ price. Markup is profit ÷ cost. Confusing them is the most expensive mistake in retail pricing — this calculator keeps them straight, in any currency.

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Profit Margin & Markup Calculator

Works for any product, any currency. Calculate margin from your price — or flip it and find the price you must charge to hit a target margin.

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Margin vs. markup — know the difference

Margin is profit as a share of the selling price. Markup is profit as a share of cost. Buy at $12.50 and sell at $24.99: profit is $12.49, margin is 50%, markup is 100%. Mixing them up is the most common pricing mistake in retail — targeting "50% margin" but calculating 50% markup leaves you far thinner than you think. Switch to target-margin mode to get the price that delivers a chosen margin.

Frequently asked questions

What's a good profit margin for an online seller?

After all fees and product costs, many healthy e-commerce businesses net 15–30% per order. Below 10%, returns, damaged stock, and ad-cost swings can erase profit entirely.

How do I convert markup to margin?

Margin = markup ÷ (1 + markup). A 100% markup is a 50% margin; a 50% markup is only a 33% margin.

Does this calculator include marketplace fees?

No — it is pure cost-versus-price maths. Use the marketplace calculators for fees, or enter your net payout as the price here.

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Amazon

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Everything Amazon takes from a sale, worked out from the official 2026 US rate card: referral and FBA fulfilment fees, size tiers, storage, and the ACOS ceiling your ads can afford.

Marketplaces

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Each marketplace stacks fees differently — on shipping, per order, per listing, or through ads. Pick your channel and see what one order really nets you.

Pricing & Profit

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Channel-independent maths every seller needs: what a unit truly costs to land, what margin a price leaves, and what price a target margin requires.

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