Break-Even Units Calculator
How many units do you need to sell each month to cover fixed costs? Set runway targets, not vibes.
About this tool
Break-even analysis tells you the volume floor your business must clear to stay alive. Plug in fixed monthly costs (salaries, rent, software, founder draw) along with contribution margin per unit, get units, revenue, and the daily orders cadence required.
Fixed vs variable costs
Fixed costs are everything that doesn't scale with order volume: rent, salaries, software subscriptions, founder pay, accounting. Variable costs scale with each order — those should already be inside your contribution margin per unit (see the True Profit calculator).
Three ways to lower break-even
- • Cut fixed costs — software audit, salary timing, defer the big office
- • Raise contribution per unit — better COGS, cheaper shipping, lower returns
- • Mix shift — push customers to higher-margin SKUs via bundles and merchandising
More free tools
See all tools →Strip COGS, shipping, payment fees, returns and ad cost from your AOV to see what each order really earns.
Calculate AOV, see what a 10% lift means in monthly revenue, and benchmark against your category.
Calculate gross and net burn rate from your monthly expenses and revenue.
Calculate sell-through rate, units sold ÷ units received, the core retail inventory KPI.
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