Margin Calculator (Contribution per Unit)
Compute contribution margin and margin per unit from purchase, shipping and percentage fees — fast, transparent and consistent.
Note: results are not made indexable via URL parameters. Canonical: https://tools.snapsoft.de/en/tools/margenrechner
Who is this for?
- E-commerce teams that need clean unit economics per SKU/variant
- Ops/finance teams that want consistent definitions (contribution, margin, fee share)
- Agencies that need to explain margins/fees clearly in client calls
Unit margin made simple — without spreadsheet overhead
For operational pricing you need a clear definition: selling price minus purchase cost minus shipping/handling minus percentage fees. That yields contribution and margin per unit.
Enter your numbers (max 5 inputs) and get KPI cards, a traffic light and 3 concrete next steps — no login, no backend, everything runs locally in your browser.
Calculator
Max 6 inputs, clear outputs. Everything runs locally in your browser.
Inputs
Result
How it works
We calculate per unit: selling price minus purchase minus shipping/handling minus percentage-based fees.
Margin here is simplified: contribution divided by selling price (in %).
If you use net/gross prices, keep all inputs consistent (don’t mix).
Quick conclusion
- Contribution per unit shows whether a SKU has “room” — or whether fees/costs eat everything.
- Common mistake: only considering purchase cost and forgetting shipping/handling or the full percentage-based fees.
- Next step: use unit margin as a KPI and define clear limits (minimum contribution or minimum margin).
Sources & notes
Disclaimer: assumptions, fees and policies can vary and change. Always verify critical values in official sources (marketplace, supplier, payment provider).
FAQ
Is this the “real profit”?
No — it’s contribution per unit as a guardrail. Fixed costs, marketing, overhead and taxes are not included.
Which fees should I enter?
Enter fees that scale with price (e.g. referral fee, payment fee). Fixed fees belong in shipping/handling or purchase cost.
Why is a simplified definition still useful?
Because it prevents bad decisions. For operational pricing, consistency is often more valuable than perfect modeling.
Do you store inputs?
No. Everything runs locally in your browser.
Can I copy results?
Yes — you can copy the key metrics to your clipboard with a button.
Turn it into a repricing rule in SnapTrade
If you want to go beyond ad-hoc calculations and actually monitor margins against guardrails in a system: SnapTrade can help.