Documents & Tools Updated 30 May 2026
Profit Margin Calculator
Work out the selling price and gross profit for a product based on its cost and your desired margin.
The Profit Margin Calculator helps you set the right selling price for a product given what it costs to make or buy. Find it in the sidebar under Calculators → Profit Margin.
Entering your figures
- Go to Calculators → Profit Margin.
- Enter the Cost Price — what the product costs you.
- Enter the Desired Profit Margin (%) — the margin percentage you want to achieve.
Results update instantly in the Results table below.
Reading the results
| Result | What it means |
|---|---|
| Selling Price | The recommended retail price to hit your target margin |
| Gross Profit | Selling Price minus Cost Price |
| Final Profit Margin Percentage | The actual margin achieved at the calculated selling price |
Including VAT
Tick Include VAT in Calculations (20%) to see two additional rows:
- VAT Amount — the VAT portion of the selling price.
- Net Profit — Gross Profit minus VAT Amount.
VAT is calculated at 20%, and the checkbox is unticked by default.
Tips
- The selling price is adjusted to end in .99 (e.g. £4.99, £12.99).
- Results are not saved — note them down or screenshot before leaving the page.
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