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Break-Even Point Calculator

Math

Calculate the unit count and revenue at which a business breaks even

Enter fixed costs, the variable cost per unit, and the selling price per unit to find the break-even point: the unit count and revenue at which profit is exactly zero. The calculator also derives the contribution margin per unit and as a percent of price, and if you supply an actual or planned sales volume it shows the resulting profit or loss and the margin of safety above break-even. This is the standard small-business and startup pricing question of how many units you need to sell before a product or launch pays for itself, done as pure arithmetic with no live cost data or tax assumptions baked in.

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How to use Break-Even Point Calculator

  • 1.Enter your total fixed costs for the period, the variable cost to produce one unit, and the price you sell each unit for.
  • 2.Optionally enter a sales volume (actual or planned unit sales) to see the profit or loss and margin of safety at that volume.
  • 3.Read the break-even unit count and revenue, along with the contribution margin per unit and ratio, from the result cards.

Frequently asked questions

Why is the break-even unit count rounded up?
You cannot sell a fraction of a unit, so breakEvenUnitsRounded rounds the exact break-even point up to the next whole unit. Break-even revenue is still calculated from the exact (unrounded) unit count, since revenue itself is continuous.
What happens if the price per unit isn't higher than the variable cost?
The calculator rejects that input. If the price doesn't exceed the variable cost per unit, every unit sold loses money and no sales volume, however large, would ever reach break-even.
What is the margin of safety?
It's how far your sales volume is above (or below) the break-even point, shown both as a unit count and as a percentage of that volume. A positive margin of safety means you're selling more than you need to just break even; a negative one means you're currently operating at a loss.
Does this account for taxes or step-fixed costs that change with volume?
No. This is the classic single-product, linear break-even model: fixed costs are constant, variable cost and price are constant per unit, and there's no tax or currency conversion applied. For a business with tiered costs or multiple products, treat this as a first approximation rather than a full model.

Use via API, SDK, or MCP

cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/break-even-calculator \
  -H "Authorization: Bearer utx_live_..." \
  -H "Content-Type: application/json" \
  -d '{"fixedCosts":10000,"variableCostPerUnit":20,"pricePerUnit":50,"salesVolume":500}'

Get an API key from your dashboard · Full API docs →

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