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Business break-even planner

Estimate break-even units, monthly sales and contribution margin from fixed and variable costs. Calculate a detailed baseline estimate from your inputs.

Five planning modes, one calculator topic

These modes share an underlying model, not five unrelated formulas.

Planning mode: Calculate a detailed baseline estimate from your inputs. Adjust the inputs to fit your situation. Related tools share an underlying model, with distinct calculation, reverse-solve, comparison and sensitivity functions.

Your numbers

$
$
$
$
$
units

Break-even units including profit target

405 units

Contribution per unit: $42.

Contribution per unit
$42
Monthly fixed costs
$12,000
Desired monthly profit
$5,000
Unit capacity
5,000

Assumptions to check

  • Taxes, owner pay and inventory finance may alter actual break-even.

How this is calculated

(Fixed costs + target profit) ÷ contribution per unit.
  1. 1Calculate unit margin after entered variable costs.

Assumptions and limits

  • Tax, financing, inventory timing, returns and owner compensation are excluded unless entered.
  • Taxes, owner pay and inventory finance may alter actual break-even.

Practical guide

Understanding business break-even planner

Everyday editorial team · GEOINNOVATION CO., LTD · Published · Updated

What this calculation is for

Break-even analysis translates operating costs into the sales needed to cover them. A contribution margin is not the same as net profit: it first pays fixed overhead. Use costs measured over the same period so monthly expenses are not compared with annual sales.

How the method works

Selling price minus variable product cost and per-unit selling fees gives contribution per unit. Fixed monthly costs divided by that contribution gives operating break-even units. Adding a desired profit to the numerator gives a higher sales target.

A worked example

At a $50 selling price and $30 of variable cost and fees, each unit contributes $20. Fixed costs of $4,000 require 200 units before operating profit. A further $2,000 target requires 300 units.

Assumptions and real-world differences

A zero or negative unit contribution cannot cover positive fixed expenses through more sales. Taxes, returns, financing, inventory timing and owner pay must be included consistently where relevant. Capacity shown beside the result is a practical constraint, not a demand forecast.

Using the business break-even planner estimate

Start with the assumptions that match your situation, then read the headline together with the detailed breakdown. This tool’s baseline calculation uses monthly fixed operating costs, selling price per unit, variable cost per unit, payment and selling fee per unit, desired monthly operating profit, monthly sales capacity. Changing an input changes only the modeled consequences of that input; it does not retrieve a quote or validate your eligibility.

Reproduce this tool’s example

These fixed example inputs are independent of edits you make above. Enter them in this tool to reproduce the result, then replace them with your own assumptions.

Monthly fixed operating costs
12,000 $
Selling price per unit
80 $
Variable cost per unit
35 $
Payment and selling fee per unit
3 $
Desired monthly operating profit
5,000 $
Monthly sales capacity
5,000 units

Break-even units including profit target: 405 units

Contribution per unit: $42.

  • Contribution per unit: $42
  • Monthly fixed costs: $12,000
  • Desired monthly profit: $5,000

Frequently asked questions

Are owner wages a fixed cost?
They can be included if that reflects your planning definition. Do not omit them and then interpret the result as take-home profit.
Can I use this for services?
Yes, if a unit and its variable costs are defined consistently; utilization and billable hours may need a separate pricing tool.
Do the example defaults represent a recommended plan?
No. Defaults make the method inspectable. Replace them with relevant assumptions and test a less favorable case before making a decision.

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