Finance & Business Calculator

Break Even Calculator

Calculate how many units you need to sell to cover fixed costs, variable costs, and an optional target profit.

Break-even inputs

Break-even formula

Break-even units = (fixed costs + target profit) ÷ (selling price per unit - variable cost per unit)

Unit-based break-even

Outputs the number of units required to cover fixed costs and target profit.

Contribution margin

Shows how much of each sale contributes to fixed costs and profit.

Target-profit planning

Adds optional target profit to model more than just zero-profit break-even.

How to interpret break-even results

Break-even analysis shows how much volume is needed before a product, service, campaign, or business line starts producing profit. The most important input is contribution per unit: selling price minus variable cost. If contribution is too small, even a large sales volume may not cover fixed costs quickly.

Use break-even before launching a product, buying inventory, hiring staff, renting space, or starting an ad campaign. Recheck the result when costs, price, conversion rates, or target profit change.

Break-even inputs

InputWhat it meansPlanning note
Fixed costsRent, salaries, software, equipment, setupCosts that do not change directly with each unit sold.
Selling priceRevenue per unitUse average selling price if products vary.
Variable costCost that scales with each unitMaterials, fulfillment, commissions, and direct labor.
Target profitOptional profit goal above break-evenUseful for launch or campaign planning.

Common use cases

Product launch

Check required sales before buying inventory.

Ad campaign planning

Estimate whether expected volume can cover campaign cost.

Service pricing

Test whether a service package covers labor and overhead.

Frequently asked questions

What is break-even point?

It is the sales volume where total revenue covers total fixed and variable costs.

What is contribution margin?

Contribution margin is selling price minus variable cost, often shown as a percentage of price.

Can break-even units be zero?

Only if fixed cost and target profit are zero. If variable cost is higher than price, the model cannot break even.

Should target profit be included?

Include target profit when you want to calculate the volume needed for a specific profit goal, not just zero profit.

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Last reviewed: July 30, 2026. Use these results for planning, then confirm business, tax, and accounting decisions with your own records.

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