Margin vs markup
Margin is profit as a share of the selling price. Markup is profit as a share of the cost. A 50% markup is only a 33% margin — mixing them up is the most common pricing mistake in retail.
E-commerce profit margin calculator
Enter your selling price and real costs. Everything is calculated in your browser — nothing is stored or sent anywhere.
Result
£19.08
gross profit per unit
- Profit margin
- 38.9%
- Markup on cost
- 106.0%
- Payment fee
- £1.42
- Total cost per unit
- £29.92
- Break-even price
- £29.92
- Units to cover fixed costs
- 79
Calculated in your browser. Nothing is stored or sent to us.
Understand it
How to use the Profit Margin Calculator
Don't forget the quiet costs
Payment processing, packaging, returns and ad spend all come out of the same gross profit. A product that looks profitable at 40% margin can lose money at a 3x ROAS.
FAQ
Frequently asked questions
- Which currencies are supported?
- USD, GBP and EUR, matching the platform currency selector.
- Is my data stored?
- No. This calculator runs entirely in your browser.
- What is break-even?
- The number of units you need to sell at this margin to cover a fixed cost such as monthly ad spend or platform fees.
Related tools
Go deeper
Want this handled across your whole catalogue?
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