Startup Runway Calculator
Find out how long your startup cash will last at current burn rate.
Cash in bank ($)
Monthly expenses ($)
Monthly revenue ($)
Runway
16.7 months
Net burn / month
$30,000
Zero cash date
Sep 2027
Formula / How it works
Runway (months) = Cash / Net Burn Rate Net Burn = Monthly expenses − Monthly revenue Rule of thumb: raise when you have 6–9 months runway left. Target 18–24 months after each round.