Break-Even Sales Calculator
Find how many units or how much revenue you need before a product or offer covers fixed costs, then set a profit target above that floor.
Enter your numbers
Use the example values to understand the tool, then swap in your own assumptions.
Business estimate only. Results update locally in your browser.
Pricing and profitability details
Use the chart, scenarios, and notes to turn the calculator output into a better business decision.
Educational business estimate only — not financial, legal, tax, accounting, or investment advice.
| Price | Contribution / unit | Break-even units | Break-even revenue |
|---|---|---|---|
| $90 | $50 | 200 | $18,000 |
| $100 | $60 | 166.67 | $16,667 |
| $110 | $70 | 142.86 | $15,714 |
- Contribution / unit
- $50
- Break-even units
- 200
- Break-even revenue
- $18,000
- Contribution / unit
- $60
- Break-even units
- 166.67
- Break-even revenue
- $16,667
- Contribution / unit
- $70
- Break-even units
- 142.86
- Break-even revenue
- $15,714
Capacity realism check
Moderate volume: Break-even volume may be workable if capacity, leads, and conversion are realistic.
Profit-target mode: to earn $2,500 above break-even, sell 208.33 units for $20,833 revenue.
| Scenario | Price | Variable cost | Contribution | Break-even units | Revenue |
|---|---|---|---|---|---|
| Price -10% | $90 | $40 | $50 | 200 | $18,000 |
| Base case | $100 | $40 | $60 | 166.67 | $16,667 |
| Price +10% | $110 | $40 | $70 | 142.86 | $15,714 |
| Cost +10% | $100 | $44 | $56 | 178.57 | $17,857 |
| Cost -10% | $100 | $36 | $64 | 156.25 | $15,625 |
What this means
166.67 is the unit volume needed before profit starts. If the target volume looks unrealistic, change price, cost, or fixed overhead before scaling.
Pricing summary
Copy a concise local-only note for pricing review, proposals, or a margin check.
Watch-outs
- Do not price from cost alone when the client outcome is more valuable.
- Low billable utilization can make an otherwise good rate unworkable.
- Taxes, cash timing, client risk, and scope creep can change the real answer.
Formula
Contribution margin per unit = price per unit − variable cost per unit.
Break-even units = fixed costs ÷ contribution margin per unit.
Break-even revenue = break-even units × price per unit.
Target-profit units = (fixed costs + target profit) ÷ contribution margin per unit.
Worked example
With $10,000 fixed costs, $100 price/unit, $40 variable cost/unit, and a $2,500 target profit, contribution margin is $60. Break-even is about 167 units or $16,667 revenue, while the target-profit point is about 208 units or $20,833 revenue.
Assumptions and limitations
This calculator is a planning aid. It depends on your assumptions and may not include taxes, local rules, financing costs, demand risk, client behavior, refund risk, or business-specific edge cases.
FAQ
What if contribution margin is zero or negative?
There is no break-even from volume alone because each sale does not contribute toward fixed costs.
What counts as fixed cost?
Rent, salaries, subscriptions, insurance, and other costs that do not scale directly with each unit sold.
What counts as variable cost?
Materials, payment fees, shipping, direct labor, and other costs that increase with each sale.
Get a better answer from the Break-Even Sales Calculator
- Start with the example values to see how the tool behaves.
- Swap in your own numbers, even if they are rough first-pass estimates.
- Change one input at a time so you can see what actually moves the result.
What the result means
Use the result as a business gut-check: does the money, time, and risk you put in look worth the return you expect to get back?
How to use it
If the answer looks strong, test it with a worse sales, adoption, margin, or cost assumption. If it still works, the case is healthier.
What can change it
Big ROI, LTV, or payback numbers can be fake-comfort if the inputs are guesses. The safest move is to ask, “what would make this number break?”
Good for
Estimate sales needed to cover fixed costs.
Check next
Compare your result with Break-even Launch Planner, Payback Period Calculator, Profit Margin Calculator when you want more context.
Best habit
Run a conservative case and an optimistic case. The gap between them is often more useful than a single answer.
Common uses
- Estimate sales needed to cover fixed costs.
- Check contribution margin assumptions.
- Plan launch or campaign targets.
Common questions
Is the Break-Even Sales Calculator private?
Yes. CalcShelf calculators run without an account, do not save calculator entries, and do not put raw inputs into shareable URLs or analytics events.
How accurate is the Break-Even Sales Calculator?
It is a planning model for business decisions. The math can be solid while the outcome changes if sales volume, adoption, margin, costs, or timing move.
What should I check after using the Break-Even Sales Calculator?
Verify the revenue, margin, cost, capacity, and timing assumptions before approving spend or changing price.
Which calculator should I try next?
Use the related calculators below to cross-check the same decision from another angle before you act.
Method behind the estimate
Business calculators use standard ROI, payback, gross-margin, CAC, LTV, and scenario-analysis formulas with user-entered assumptions.
Why the detail matters
Best used as planning models. The detail tables are designed to expose which assumption changes the decision, not to certify a forecast.
Privacy guardrail
Your calculator values are for you. CalcShelf does not require an account, save calculator entries, put your numbers into shareable URLs, or use raw inputs as analytics events.
Copy or print safely
Use any copy, print, or worksheet controls as local handoff tools for your own notes, supplier calls, lender questions, or implementation checklist. They are there to help you explain the result to a human.
Before acting
Treat the result as a decision draft, not a verdict. Recheck the source numbers, run a downside case, and verify the real-world rule, quote, label, or spec that controls the final answer.
Last reviewed: May 11, 2026. See methodology and editorial policy for formulas, assumptions, rounding, review approach, and limitations. For real budgets, contracts, taxes, or investments, verify the inputs before acting.