Break-even Calculator
Calculate contribution per unit, break-even units (fixed costs/month) and the unit volume for a target profit — incl. a signal: contribution > 0?
Note: results are not made indexable via URL parameters. Canonical: https://tools.snapsoft.de/en/tools/break-even
Who is this for?
- E-commerce teams translating monthly fixed costs into unit goals
- Ops/finance teams needing break-even as a simple guardrail metric
- Sellers/marketers who want to include ad spend in unit economics
Break-even made simple — and documented as a guardrail
Break-even answers a simple question: how many sales per month do you need so that contribution per unit covers your fixed costs? This tool computes contribution/unit, break-even units and (optionally) units for a target profit.
All values are intentionally manual inputs (max 6 fields). Calculations run locally in your browser — no login and no backend dependency.
Calculator
Max 6 inputs, clear outputs. Everything runs locally in your browser.
Inputs
Advanced options
Result
How it works
Contribution per unit: selling price − variable costs − (selling price × fees%) − ad spend per sale.
Break-even units: fixed costs/month ÷ contribution per unit (always rounded up to full units).
Units for target profit: (fixed costs/month + target profit/month) ÷ contribution per unit (rounded up).
If contribution per unit ≤ 0, break-even is not reachable (more volume makes things worse).
Quick conclusion
- Contribution per unit > 0 is required — otherwise break-even isn’t meaningful.
- Break-even units are your minimum monthly volume to cover fixed costs.
- For target profit, plan volume above break-even (with buffer for returns/discounts).
Sources & notes
Disclaimer: assumptions, fees and policies can vary and change. Always verify critical values in official sources (marketplace, supplier, payment provider).
FAQ
What exactly is “contribution per unit” here?
A simplified unit model: price minus variable costs minus percentage fees minus ad spend per sale. Fixed costs are not included in contribution; they’re handled via monthly break-even.
Which fees should go into “total fees %”?
All percentage-based fees applied to the selling price (e.g. marketplace/platform fee, payment fee). Fixed fees belong in variable costs or fixed costs — depending on how they occur.
How should I enter ad spend?
Use an average value per sale (from campaign data). If you only know ACoS, you can estimate ad spend per sale as price × ACoS.
What does “Not reachable” mean?
If contribution per unit ≤ 0, you can’t sell your way out of fixed costs. First improve unit economics (price/costs/fees/ads).
Do you store inputs?
No. Everything runs locally in your browser.
Turn it into a repricing rule in SnapTrade
If you want to go beyond ad-hoc break-even calculations and monitor contribution/guardrails in a system: SnapTrade can help.