Free founder tool
Runway calculator
See how many months your cash lasts at your current burn, or when growing revenue catches up with your costs.
Your numbers
Leave blank for none.
More inputs (optional)
Expenses are kept flat. A negative number models shrinking revenue.
Result
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How this is worked out (formula version 1)
- Net burn = monthly expenses − monthly revenue
- Month by month, starting this month: revenue grows by the growth rate each month after the first, expenses stay flat, and the cash falls by that month's net burn. Without growth this is cash ÷ net burn.
- The runway ends in the month the cash would go below 0 (the part of that month the cash still covers counts). It is worked out for up to 120 months.
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