Profit Margin Calculator
Calculate gross profit, profit margin and markup from your cost and selling price. Understand the difference between margin (% of revenue) and markup (% of cost) — they are not the same.
What powers the Profit Margin Calculator
Gross profit (revenue − cost)
Profit margin % (profit ÷ revenue)
Markup % (profit ÷ cost)
Loss detection (red highlight when revenue < cost)
7 currency presets
Side-by-side margin vs markup explanation
Why the Profit Margin Calculator is different
Browser-native
The Profit Margin Calculator runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Setting wholesale → retail pricing on a product line
- Quick margin check on a single SKU
- Comparing two products to see which has higher margin
- Reseller / dropshipper unit-economics check
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.