Does this tool show a break-even chart?
No. The result is four numeric cards - Break-Even Units, Break-Even Revenue, Contribution Margin per unit, and the Margin Ratio - with no cost-vs-revenue graph or visualization anywhere on the page.
Break-Even Calculator – Units Needed to Cover Your Costs
Calculate your break-even point online free - no signup. Enter fixed costs, variable cost per unit, and selling price to find exactly how many units you need to sell to break even, for a single product or service.
If this tool isn’t working as expected, please take a screenshot of the error and report the problem here so we can investigate and improve it.
Financial Calculation Disclaimer
Results from this calculator are estimates based on user-supplied numbers for informational and planning purposes only. Actual interest rates, loan terms, taxes, and financial outcomes may vary depending on your institution, jurisdiction, and market conditions. This tool does not constitute professional financial, tax, or investment advice.
About this tool
Every business has a break-even point - the sales volume below which losses accumulate. Knowing your break-even before launching a product or campaign tells you whether your pricing and cost structure are viable at realistic sales volumes.
This tool gives you that number quickly from three inputs, using the standard single-product formula.
Enter your fixed costs, variable cost per unit, and selling price per unit to calculate exactly how many units you need to sell to break even, the revenue that represents, and your contribution margin per unit. This is a simple single-product model - there's no chart, no margin-of-safety figure (that needs an actual or projected sales number, which isn't an input here), and no target-profit mode.
How to Use Break-Even Calculator
Enter Fixed Costs
Input your total fixed costs (rent, salaries, etc.).
Variable Cost & Price
Enter cost per unit and your selling price per unit.
Calculate
See the break-even units, revenue, and contribution margin - instantly, with no chart.
Record the Result
There's no copy, export, or chart - note the numbers down yourself.
Common Workflows
Enter Your Costs
Fill in total fixed costs, variable cost per unit, and selling price per unit.
Read the Break-Even Numbers
The tool instantly shows break-even units (rounded up), break-even revenue, contribution margin per unit, and the contribution margin ratio.
Adjust and Re-Check
Change the selling price or costs and the numbers recalculate instantly - re-enter different scenarios one at a time to compare them.
Record the Result Yourself
There's no copy, export, or chart - note the numbers down or take a screenshot if you need them later.
Best For
- Calculates break-even units (rounded up to the next whole unit), break-even revenue, contribution margin per unit, and the contribution margin ratio (%) from three inputs: fixed costs, variable cost per unit, and selling price per unit.
- Assumes a single product or service with a constant price and constant variable cost per unit - it doesn't support multiple products, a percentage-of-revenue variable-cost mode, or a target-profit-above-zero calculation.
- Runs entirely in your browser, with no chart, copy, or export feature - the four result numbers are displayed as on-page text only.
Examples
The worked example from the formula
Input
Fixed Costs: $10,000, Variable Cost: $20/unit, Selling Price: $50/unitResult
Break-Even Units: 334, Break-Even Revenue: $16,700.00, Contribution Margin: $30.00/unit, Margin Ratio: 60.0%Break-even units are always rounded up (334, not 333.33) - you can't sell a fraction of a unit and still fully cover fixed costs.
No margin-of-safety figure is shown, at any input combination
Input
Any combination of fixed costs, variable cost, and selling priceResult
Only four figures ever appear: Break-Even Units, Break-Even Revenue, Contribution Margin, and Margin RatioMargin of safety compares your actual or projected sales to your break-even point - since this tool has no field for actual or projected sales, it cannot calculate that figure.
No chart is rendered anywhere on the page
Input
Any valid set of inputsResult
The four result numbers appear as text in four cards - no graph, line chart, or cost/revenue visualization is shownIf you need a visual break-even chart, you'll need to plot the numbers in a spreadsheet yourself.
Use Cases
Sizing a new product's minimum sales target
Enter your expected fixed costs, per-unit cost, and price to see the unit volume you need before launch.
Testing a price change quickly
Change just the selling price and see how the break-even unit count shifts.
Comparing a couple of pricing scenarios by hand
Re-enter different cost or price combinations one at a time and note each result, since there's no built-in comparison or save feature.
Common Mistakes
Problem
Expecting a margin-of-safety number
Solution
This tool doesn't ask for actual or projected sales, so it can't calculate how far above break-even you're operating - only the break-even point itself.
Problem
Expecting a chart
Solution
There's no visual cost-vs-revenue chart anywhere on this page - only four numeric result cards.
Problem
Mixing monthly fixed costs with a different time period
Solution
The break-even unit count is only meaningful for the same period as your fixed-costs figure - if fixed costs are monthly, the result is units per month.
Problem
Applying this to a business with multiple products
Solution
This is a single-product model with one selling price and one variable cost - a business selling several products at different prices and costs would need to calculate each separately or use a weighted-average approach this tool doesn't provide.
Tips & Best Practices
Round up, always
The tool already rounds break-even units up for you (334, not 333.33) - you always need to sell whole units to fully cover fixed costs.
Re-run different price points to compare scenarios
There's no built-in comparison, so change one input at a time and note each result.
Keep fixed and variable cost periods consistent
Use monthly fixed costs with a monthly break-even target, or annual with annual - mixing periods gives a meaningless unit count.
Use it as a planning input, not a final answer
It doesn't model taxes, multiple products, or changing costs at different volumes - treat the result as a starting estimate for further planning.
Limitations
Single-product model only
One fixed-cost figure, one variable cost per unit, and one selling price - it doesn't support multiple products or a percentage-of-revenue variable-cost mode.
No margin-of-safety calculation
There's no field for actual or projected sales, so the tool cannot show how far above break-even a given sales level is.
No chart or visualization
Results are shown as four numeric cards only - there's no cost-vs-revenue graph.
No target-profit mode
It calculates the break-even point (zero profit) only - not the units needed to hit a specific profit target above zero.
Assumes constant price and constant variable cost per unit
The model doesn't account for volume discounts, bulk-purchasing savings, or prices that change at different sales levels.
No copy, export, or save feature
Each calculation is independent and nothing is remembered between visits.
Comparisons
This Tool vs. a Multi-Mode Break-Even Calculator
Both find your break-even point, but only one models more than a single product at a fixed price.
| This Tool (Single-Product Model) | A Multi-Mode Break-Even Calculator | |
|---|---|---|
| Product modes | One product, one price, one variable cost | Often supports multiple products or a %-of-revenue mode |
| Margin of safety | Not calculated - no actual/projected sales input | Often included as a separate input and output |
| Target profit above zero | Not supported | Often included as an extension of the break-even formula |
| Chart | None | Often included as a cost/revenue visualization |
FAQs
The most common question is what to include in 'fixed costs'. Fixed costs are expenses that don't change with sales volume - rent, salaries, software subscriptions, insurance. Variable costs change with each unit sold - materials, packaging, shipping, payment processing fees. This calculator assumes a single product with constant costs - it doesn't produce a chart or a margin-of-safety figure, since margin of safety requires an actual or projected sales number that isn't one of the three inputs.
Does it calculate margin of safety?
No. Margin of safety compares your actual or projected sales to your break-even point, but this tool only has three inputs - fixed costs, variable cost per unit, and selling price per unit - with no field for actual or projected sales. It calculates the break-even point itself, not how far above or below it you're operating.
Can it model multiple products or a percentage-of-revenue variable cost?
No. This is a single-product model: one fixed-cost figure, one variable cost per unit, and one selling price per unit. It doesn't support multiple products at different prices, or a %-of-revenue variable-cost mode for service businesses without a single per-unit cost.
Can I copy, export, or save the result?
No. The four result figures are displayed as on-page text only - there's no copy button, export option, or saved history.
How do you calculate the break-even point?
Break-Even Units = Fixed Costs ÷ Contribution Margin per Unit. Contribution Margin = Selling Price − Variable Cost per Unit. Example: fixed costs $10,000/month, selling price $50, variable cost $20 per unit. Contribution margin = $30. Break-even = $10,000 ÷ $30 = 334 units per month (rounded up). Below 334 units, you are operating at a loss. Above 334 units, you are profitable.
What are fixed costs vs variable costs?
Fixed costs stay constant regardless of production or sales volume: rent, salaries, insurance, software subscriptions, loan repayments. Variable costs change with each unit produced or sold: raw materials, packaging, shipping per order, payment processing fees, sales commissions. Semi-variable costs have both components - utility bills with a base charge plus usage-based charges.
What is contribution margin?
Contribution margin is the amount each unit sale contributes toward covering fixed costs and eventually generating profit. Contribution Margin per Unit = Selling Price − Variable Cost per Unit. Contribution Margin % = (Selling Price − Variable Cost) ÷ Selling Price × 100. A higher contribution margin means each sale makes a larger dent in your fixed cost burden, reducing the break-even volume. This calculator shows both figures directly as "Contribution Margin" and "Margin Ratio."
How does break-even analysis help with pricing?
Break-even analysis tells you whether your current pricing and cost structure can realistically achieve profitability at attainable sales volumes. If your break-even requires 10,000 sales per month but your realistic market is 500, you need to either raise prices, reduce fixed costs, or reduce variable costs. It converts an abstract profitability question into a concrete unit target.
What is a margin of safety?
Margin of safety = Actual (or Projected) Sales − Break-Even Sales. It measures how far above break-even you are operating, expressed as units or revenue. A higher margin of safety means more buffer before losses occur if sales decline. Expressed as a percentage: (Actual Sales − Break-Even) ÷ Actual Sales × 100. A 30% margin of safety means sales can fall 30% before you reach the break-even point. This is general education - this calculator doesn't ask for actual or projected sales, so it doesn't compute this figure; you'd need to do that last step yourself using its break-even output.
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