Calculate how many months before your startup runs out of cash
How it works
Converts the cash balance and monthly net burn into the number of months before the money runs out. Runway drives every timing decision a founder makes: when to raise, when to hire, and when to cut.
Runway (months) = Cash on hand / Net monthly burn
Cash on handaccessible bank balance, excluding restricted or escrowed fundsNet monthly burncash out less cash in, averaged over recent months
- 1,400,000 / 125,000
- A flat-burn calculation is optimistic if you are hiring. Model runway against the planned burn curve, since a hiring plan can shorten 11 months to 7 without any surprise.
- Fundraising takes 3 to 6 months from first meeting to wired funds, so 12 months of runway means you should already be preparing to raise.
- Growing revenue extends runway non-linearly, because each month reduces net burn. Default alive means the curve reaches breakeven before the cash reaches zero.
- Subtract genuine commitments before dividing: severance obligations, remaining lease term, and any accrued tax liability are cash you no longer control.
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Frequently Asked Questions
Yes. Startup Runway costs nothing, needs no account, and runs right in your browser. There is no paywall, no watermark on the results, and no limit on how many times you can run the numbers.
Startup Runway uses the standard formula for this kind of calculation, so the output is only as good as the figures you type in. Rates, fees, and rules in finance shift over time, and we review the underlying assumptions on a regular schedule; check the "Last reviewed" date above for the most recent pass. Spotted something off? There's a feedback button in the bottom-right corner.