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Break-Even Calculator (BEP)

The break-even point (BEP) is the sales volume at which total revenues equal total costs — no profit, no loss. This calculator finds your BEP in units and in monetary value, plus the contribution margin percentage and the operating profit at twice the break-even volume. Formulas: BEP (units) = Fixed Costs / (Selling Price − Variable Cost per Unit); BEP (revenue) = Fixed Costs / Contribution Margin %. Simply enter your monthly fixed costs, the net unit selling price, and the variable cost per unit to get a complete break-even analysis instantly. This tool is ideal for entrepreneurs building a business plan, product managers evaluating new launches, students studying management accounting, and anyone who wants to quickly assess the viability of a product or service.

Reviewed byRedakcja Liczbnik
Calculator
PLN
PLN
PLN
Break-even analysisBEP — units83.33
BEP — revenue
12,500.00 PLN
Contribution margin (%)
40
Profit at 2× BEP
5,000.00 PLN

How the break-even calculator works

The calculator performs three calculations: 1. Unit contribution margin = Selling Price − Variable Cost per Unit. This shows how much each unit sold contributes toward covering fixed costs. 2. BEP in units = Fixed Costs / Contribution Margin (per unit). This is the minimum number of units that must be sold to avoid a loss. 3. BEP in revenue = Fixed Costs / Contribution Margin (%). This is the minimum revenue needed to cover all costs. The calculator also shows the operating profit at sales equal to 2× BEP — in a linear model this always equals the value of fixed costs, giving a useful planning reference point. The calculator assumes constant price and constant variable cost (linear model). All values should be entered net of VAT/sales tax.

Example: product priced at €150, variable cost €90

An online store sells a product for €150 net. Variable cost per unit (goods + shipping) is €90. Monthly fixed costs (rent, staff, software) total €5,000. Contribution margin = (150 − 90) / 150 = 40%. BEP = 5,000 / 60 = 83.33 units (i.e. 84 units per month), BEP (revenue) = 5,000 / 0.40 = €12,500. At sales of 167 units (2× BEP) the operating profit = €5,000.

Frequently asked questions

What is the break-even point (BEP)?

The break-even point is the level of sales at which total revenue equals total costs — neither a profit nor a loss. Below the BEP the business makes a loss; above it, a profit. It is calculated as: BEP (units) = Fixed Costs / (Selling Price − Variable Cost per Unit).

How do I calculate the break-even point in revenue?

BEP (revenue) = Fixed Costs / Contribution Margin %. Contribution margin % = (Selling Price − Variable Cost) / Selling Price × 100. For example: fixed costs €5,000, price €150, variable cost €90 → margin 40%, BEP = 5,000 / 0.40 = €12,500 monthly revenue.

What are fixed and variable costs?

Fixed costs do not change with the volume of production or sales — for example rent, salaried staff, insurance, and software subscriptions. Variable costs increase proportionally with sales — for example raw materials, packaging, sales commissions, and shipping costs.

What is contribution margin?

Contribution margin (unit) = Selling Price − Variable Cost per Unit. It represents how much each unit sold contributes to covering fixed costs and generating profit. The higher the contribution margin, the fewer units need to be sold to reach break-even.

Does the calculator include taxes or VAT?

The calculator works with net figures — VAT is excluded. Income tax (corporate or personal) is not included in the standard operating BEP. For a full financial analysis, tax should be accounted for separately to determine the after-tax break-even point.

Why does profit at 2× BEP equal fixed costs?

At the BEP, total contribution margin exactly covers fixed costs (zero profit). At 2× BEP, the contribution margin is twice the fixed costs — so after covering fixed costs once, the remaining contribution margin equals fixed costs. This is a useful rule of thumb: doubling your BEP volume adds profit equal to your fixed cost base.

Indicative result

Results are for informational purposes only and do not constitute financial or business advice. The calculator uses a simplified linear model — it assumes constant prices and variable costs with no economies of scale. In practice, costs may change at different sales volumes. Consult a financial advisor or accountant before making business decisions.
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