World Economy · Free tools

Startup & break-even calculator

No account, email or phone. Planning estimates, not quotes or personalized advice.

Open full calculator, sources & methodology ↗

Scenario / listing name

Keep up to three named scenarios, then change the calculator for the next one. Saved comparisons stay in this tab and disappear when you leave. To save a file, choose “Save as PDF” in your browser’s print dialog.

Sales & monthly costs

Selling price per unit or job ($)

Variable cost per unit or job ($)

Expected sales per month

Monthly fixed operating costs ($)

Monthly owner-pay goal ($)

Launch & cash cushion

One-time startup / opening inventory costs ($)

Cash available before launch ($)

Target runway (months)

Example result

Planned sales cover monthly costs

Break-even units / month134

Monthly operating surplus$1,000

Launch cash + runway target$20,000

Months of cash at planned sales—No monthly burn at these sales; not a guarantee of unlimited runway.

Estimates update as you change the numbers. Review the assumptions below.

See the breakdown

Contribution per sale: $60
Contribution margin: 60.0%
Break-even monthly revenue: $13,400
Cash left after launch: $15,000
Monthly fixed costs + owner pay: $8,000
Surplus if sales are 20% lower: -$800
Additional cash for target runway: $0.00

How to read this estimate

Break-even units are rounded up. Fixed costs include your owner-pay goal; variable costs should include materials, per-sale labor, shipping, transaction fees and other costs that rise with sales.

Runway assumes steady monthly sales and immediate collections. It excludes taxes, financing payments and sales ramps unless entered in costs. Add receivables, inventory and seasonal cash needs to launch costs.

If sales do not cover variable costs, there is no positive-volume break-even point under these assumptions.