Liquid assets divided by monthly burn rate. The result is expressed in months, which makes it directly comparable to how long a job search or a recovery actually takes.
Promi reads the result in the same bands the app uses: under 3 months is thin, 3 to 6 is a working buffer, and 6 or more is comfortable. The reason those numbers cluster where they do is that median unemployment duration in the US has historically run around two to three months, with the average pulled well above that by long-duration cases.
Very long runways raise a different question rather than a better answer. Cash held far beyond the buffer is earning a cash return while losing purchasing power to inflation, which is a deliberate tradeoff worth making knowingly rather than by default.
Worked through
Runway Benchmarks
Where this lives in Promi
Cash Flow page, at the spending rate of the period selected there. The Accounts page and the dashboard state it over their own windows, as Burn Rate describes.
Related in Cash Flow & Runway
See your own runway
Promi computes this from your linked accounts, with the definition one click from the number.
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