Free tool

Burn rate & runway calculator

Enter cash, monthly revenue and costs with their growth to see your net burn, runway and whether you reach break-even before the cash runs out.

Net burn this month–
Runway (flat numbers)–cash ÷ today's net burn
Runway with growth–

Simulation over up to 60 months; one-off costs, fundraising and taxes are ignored. Investors usually want to see 18–24 months of runway after a round – start fundraising with 9–12 months left.

Embed this burn rate & runway calculator on your website (free)

Copy the code into your page or blog post. The tool runs in your visitors' browser; keep the credit line.

Short runway? Run a faster raise

Send your deck as a tracked link, get an alert when an investor opens it and follow up with the ones reading the financials.

Runway is the number every founder should know by heart. Growth changes it a lot – which is why this calculator simulates month by month instead of dividing cash by today's burn.

FAQ

Burn rate & runway calculator – questions

What is the difference between gross and net burn?

Gross burn is what you spend per month; net burn is spending minus revenue – the amount your cash actually shrinks by.

What does default alive mean?

With current growth of revenue and costs, the company reaches profitability before the money runs out.

How much runway should I have?

Investors usually expect 18–24 months after a round; start raising with 9–12 months left.