Business calculator

Break-Even Calculator

Estimate the minimum whole units and sales revenue required to cover fixed and variable costs. This break-even calculator uses selling price, variable cost per unit and fixed costs to calculate contribution per unit, contribution margin, break-even units and break-even revenue. Use figures from one consistent period and currency. The result is a planning estimate rather than a forecast: demand, discounts, returns, taxes, capacity constraints and changes in cost can move the actual break-even point.

Instant result No sign-up Editable assumptions

Enter your figures

Calculate your result

Runs in your browser

Estimate only. Platform fees, taxes and policies vary by country, account, category and date. Verify important decisions against your current statement or official fee schedule.

Break-even units
Break-even revenue
Contribution margin

Calculator guide

Use break-even analysis for practical planning

Begin with the period you want to analyze, such as one month, one quarter or one production run. Add fixed costs that belong to that same period, including rent, salaried labor, insurance, subscriptions and other overhead that does not change directly with each unit sold.

Enter the actual selling price after ordinary discounts, but before subtracting the variable costs listed separately. Variable cost per unit should include costs that increase with every sale, such as product cost, transaction fees, packaging, sales commissions and unit-level fulfillment.

The calculator subtracts variable cost per unit from selling price to obtain contribution per unit. It then divides fixed costs by that contribution and rounds up to a whole unit. The rounded unit count is used to calculate break-even revenue, preventing an unrealistically low result based on a fraction of a unit.

Run several scenarios instead of relying on one estimate. Test lower selling prices, higher variable costs and higher fixed costs. This shows how sensitive the break-even point is and can help set sales targets, minimum order quantities or pricing guardrails.

If selling price is zero or contribution per unit is not positive, the displayed break-even units are zero because the entered economics cannot recover fixed costs through additional sales. Correct the price or cost assumptions before relying on the result.

Formula

Break-even calculation explained

The method separates costs by behavior and measures how much each unit contributes toward fixed costs.

  1. Subtract variable cost per unit from selling price to find contribution per unit.
  2. Divide fixed costs by contribution per unit.
  3. Round units up to the next whole unit.
  4. Multiply rounded units by selling price for break-even revenue.
  5. Divide contribution per unit by selling price for contribution margin.

Worked example

Break-even example for a product

Inputs

Fixed costs
$10,000.00
Selling price per unit
$50.00
Variable cost per unit
$30.00

Results

Contribution per unit
$20.00
Break-even units
500 units
Break-even revenue
$25,000.00
Contribution margin
40.00%

At 500 units, revenue of $25,000 covers $10,000 of fixed costs and $15,000 of variable costs.

Frequently asked questions

Break-Even Calculator FAQ

What is the break-even point?

The break-even point is the sales volume at which total revenue equals total fixed and variable costs. At that point, accounting profit is zero: the business has covered the costs included in the calculation but has not yet produced a profit.

How are break-even units calculated?

Break-even units equal fixed costs divided by contribution per unit. Contribution per unit is selling price minus variable cost per unit. This calculator rounds the result up because most businesses cannot sell a fraction of a physical unit.

What costs belong in fixed costs?

Include costs that do not change directly with the number of units sold during the chosen period, such as rent, salaried payroll, insurance and software. Keep the period consistent and do not include the same cost again as a variable cost.

What belongs in variable cost per unit?

Include costs that rise with each additional sale, such as product cost, packaging, unit-level shipping, payment fees and sales commissions. Use an average per-unit amount when a cost varies across orders.

Why is there no usable break-even point when price is below variable cost?

When variable cost equals or exceeds selling price, each additional sale contributes zero or a negative amount toward fixed costs. Selling more units therefore cannot cover fixed costs unless pricing or unit cost changes.

Does break-even revenue include profit?

No. Break-even revenue is the sales revenue required to cover the costs entered. Revenue above that level may create profit, but only if prices and costs remain consistent and no omitted expenses reduce the result.

Should taxes be included?

Include taxes only when they are a cost to the business and are not already embedded in another input. Sales taxes collected for a tax authority are usually not revenue, while income tax treatment depends on jurisdiction and entity structure.

How often should I update the calculation?

Update it whenever prices, supplier costs, fees, rent, payroll or the product mix changes. Businesses with volatile input costs may need to review break-even assumptions monthly or before major pricing and inventory decisions.

Primary sources

Official references and further reading

Editorially reviewed: 2026-07-21

Continue calculating

Related calculators

View all →
P

Business

Profit Calculator

Calculate revenue, variable costs, fixed costs, total costs, net profit and profit margin for a product line, sales batch or accounting period. Enter the average selling price, quantity and all costs that belong to the same scope. The calculator keeps unit costs, other variable costs and fixed overhead visible so the result is transparent and easy to audit. It is intended for planning and scenario analysis; accounting, tax and cash-flow results may differ when timing, depreciation, inventory valuation, refunds or taxes are included.

Calculate now →