Break-Even Calculator — Find Your Break-Even Point
Enter your fixed costs, variable cost per unit, and selling price to instantly calculate your break-even units, break-even revenue, and contribution margin. No signup, runs entirely in your browser.
Rent, salaries, insurance, subscriptions
Materials, packaging, shipping per unit
Leave blank to see break-even only
Break-Even Units
250
units / month
Break-Even Revenue
$8,750
revenue / month
$20.00
Contribution margin / unit
57.1%
Contribution margin %
| At Break-Even | |
|---|---|
| Units Sold | 250 |
| Fixed Costs | − $5,000 |
| Variable Costs | − $3,750 |
| Total Costs | − $8,750 |
| Revenue | $8,750 |
| Profit / Loss | $0 |
Estimates assume constant fixed costs and a linear variable cost model. Actual results may vary with volume discounts, seasonal demand, and other real-world factors.
How the Break-Even Calculator Works
- 1Enter your monthly fixed costs — the total overhead you pay regardless of how much you sell (rent, salaries, insurance, software).
- 2Enter your variable cost per unit — the direct cost tied to each unit sold (materials, packaging, per-unit shipping or transaction fees).
- 3Enter your selling price per unit. The calculator instantly shows your contribution margin — what each sale contributes toward covering fixed costs.
- 4Read your break-even units and revenue from the summary card, then optionally enter a target profit to see exactly how many additional units are needed to reach it.
Why Break-Even Analysis Matters for Pricing
Knowing your break-even point transforms pricing from guesswork into arithmetic. If your break-even requires selling 500 units per month and your current sales are 350, you have a concrete gap to close — and can model whether raising your price, cutting variable costs, or reducing fixed overhead closes it faster. The contribution margin percentage also reveals how resilient your business is to revenue drops: a 60% margin means you can absorb a 60% revenue decline before hitting zero profit.
Tips for Using Break-Even Analysis Effectively
Update inputs when costs change
Fixed costs drift upward over time — rent increases, new subscriptions, additional headcount. Revisit the calculator quarterly to keep your break-even point current.
Model pricing scenarios before launching
Run the calculator at two or three different price points before setting your selling price. A 10% price increase on a 40% margin product cuts your break-even units by roughly 20%.
Use contribution margin % to compare products
If you sell multiple products, the one with the highest contribution margin % generates profit fastest above break-even. Prioritise that product in your marketing and sales efforts.
Set your target profit before the month starts
Enter a specific monthly profit goal in the target profit field and track your progress against that number. It converts an abstract revenue target into a concrete unit sales goal.
Separate per-product and business-level analysis
If you sell multiple products at different margins, run a separate break-even analysis for each product line. Then calculate a blended break-even for the business overall based on your expected sales mix.
Pair with a profit margin analysis
Break-even tells you the minimum to survive; profit margin analysis tells you whether you are pricing competitively. Use both together to find a price that is sustainable and market-appropriate.
Frequently Asked Questions
What is the break-even point?
The break-even point is the level of sales at which total revenue equals total costs — meaning neither a profit nor a loss is made. Every unit sold above the break-even point contributes to profit; every unit below it means the business is operating at a loss. It is a fundamental concept in business planning and pricing decisions.
How is the break-even point calculated?
Break-even units = Fixed Costs ÷ Contribution Margin per Unit, where Contribution Margin per Unit = Selling Price − Variable Cost per Unit. Break-even revenue = Break-even Units × Selling Price, or equivalently Fixed Costs ÷ Contribution Margin %. The calculator performs both computations instantly as you type.
What is contribution margin and why does it matter?
The contribution margin is the amount each unit sold contributes toward covering fixed costs — and then toward profit once fixed costs are fully covered. It equals selling price minus variable cost per unit. A higher contribution margin means fewer units are needed to break even. Contribution margin % expresses this as a proportion of revenue, which is useful for comparing products or pricing scenarios.
What counts as a fixed cost vs a variable cost?
Fixed costs stay the same regardless of how many units you produce or sell — rent, salaries, insurance, software subscriptions, and loan payments are typical examples. Variable costs change directly with output — raw materials, per-unit packaging, transaction fees, and shipping costs. Some costs are semi-variable (e.g. electricity, overtime labour), and for this calculator it is fine to estimate them as either fixed or variable depending on which is a closer fit.
How does the target profit feature work?
Enter a monthly profit target in the optional field and the calculator shows how many additional units you need to sell beyond the break-even point to reach that target. The formula is: Target Units = (Fixed Costs + Target Profit) ÷ Contribution Margin per Unit. The breakdown table then shows both scenarios side by side — at break-even and at your target — so you can see the revenue and cost structure for each.
Is my data stored or sent to a server?
No. All calculations run entirely in your browser using JavaScript. Nothing is sent to a server and nothing is stored. Your business figures stay completely private.
What are the limitations of break-even analysis?
Break-even analysis assumes that fixed costs stay constant and that variable costs scale linearly with units — both simplifications that may not hold at very high or very low volumes. It also assumes a single selling price and a single product. In reality, volume discounts, product mix, capacity constraints, and seasonal demand can all shift the actual break-even point. Use the calculator as a planning starting point and revisit the inputs regularly as your cost structure evolves.
Can I use this for a service business (not products)?
Yes. For a service business, treat each "unit" as a billable hour, a client engagement, or a project — whatever your natural billing unit is. Fixed costs remain your monthly overhead. Variable costs per unit might include contractor fees, software costs per client, or commissions. The math is identical; only the unit definition changes.