Business calculator

Break-Even Calculator

Calculate how many units you need to sell to cover fixed and variable costs.

Your inputsStart with your numbers
Scenario referenceBusiness planning model

Break-even units = Fixed costs ÷ (Price − Variable cost)

Change one input at a time to see what drives the result.
Live estimateYour result
● Updates instantly
Break-even units267 units
Contribution per unit$45.00
Break-even revenue$21,360.00
Decision tip

Try a conservative, expected and optimistic scenario before you decide.

✓ Free to use✓ No account or saved data✓ Formula shown below
How to use

Enter the values used by break-even

Calculate how many units you need to sell to cover fixed and variable costs. Enter the assumptions for the same time period and currency, and check any minimum or maximum values displayed next to the input fields.

01
Record your inputs

Fixed costs, Selling price per unit, Variable cost per unit.

02
Compare a second case

Change one variable so you can see the effect without mixing several assumptions.

03
Check the calculation

The worked example below shows the formula and the independently rendered default-input results.

Complete worked example

Calculate break-even from sample inputs

These are the same starting values loaded into the interactive calculator above. The displayed results below come from the same calculation engine as the live tool.

Step 1 — Record the inputs

Fixed costs$12,000
Selling price per unit$80
Variable cost per unit$35

Step 2 — Identify the formula

FORMULABreak-even units = Fixed costs ÷ (Price − Variable cost)

Step 3 — Substitute the values

For this exact worked case, use Fixed costs = $12,000; Selling price per unit = $80; Variable cost per unit = $35. Replace named formula variables with their input values as shown below. Keep the units consistent; a percent is divided by 100 wherever the model requires a decimal rate.

NUMERIC SUBSTITUTIONBreak-even units = $12,000 ÷ ($80 − $35 cost)

Step 4 — Read the calculated answer

Break-even units267 units
Contribution per unit$45.00
Break-even revenue$21,360.00

Rounding follows the calculator display: whole units may be rounded up when an indivisible unit is required, while other values typically show up to two decimal places. The result is conditional on the entered assumptions, not a market quotation.

Decision interpretation

How to interpret this break-even result

A practical planning tool for product launches, service packages, restaurants, and small businesses.

Compare the calculated unit economics with the operating target for the same month, quarter, or project. Keep fixed and variable costs separate before changing prices or capacity.

Scenario comparison

Change the revenue or sales-volume assumption while holding the cost definition steady; then repeat with higher input costs.

Assumptions and limitations

An arithmetic estimate does not account for unentered overhead, cash timing, taxes or a changing product mix.

  • Fixed costs: Enter a finite monetary value of at least 0. Use a consistent definition across comparison cases.
  • Selling price per unit: Enter a finite monetary value of at least 0. Use a consistent definition across comparison cases.
  • Variable cost per unit: Enter a finite monetary value of at least 0. Use a consistent definition across comparison cases.

Frequently asked questions

What does this calculator include?

It uses the named inputs above and the formula shown in the worked example. No other fees, revenue streams, or external data are automatically included.

Why could my real result be different?

An arithmetic estimate does not account for unentered overhead, cash timing, taxes or a changing product mix.

How should I compare two results?

Change the revenue or sales-volume assumption while holding the cost definition steady; then repeat with higher input costs. Record the assumption that changed so a higher or lower answer is interpretable.

Transparent formula

Break-Even calculation method

CORE FORMULABreak-even units = Fixed costs ÷ (Price − Variable cost)

A practical planning tool for product launches, service packages, restaurants, and small businesses.

Use with care

What this estimate does—and does not—include

This tool is designed for quick planning and comparison. For tax, accounting, legal, investment, lending, or other regulated decisions, verify the result against the rules and assumptions that apply to your situation.

CalcScoutHQ shows the calculation logic so you can check assumptions, understand the result, and reproduce the math independently when needed.

Benchmark context

Break-even assumes fixed costs, unit price and unit variable cost remain stable over the modeled range. Capacity steps, tiered pricing and mixed products can make one point misleading.

Decision case

Before hiring or leasing equipment, calculate a base case and a capacity-step case so the sales target does not ignore the next block of fixed cost.

Calculation mistakes that change the conclusion

  • Including fixed cost inside variable cost twice
  • Using average selling price before discounts
  • Treating break-even as a profit target

Evidence to review next

  • Sales mix
  • Capacity constraint
  • Cash collection and working-capital timing