Runway & Default-Alive Calculator
See your runway and whether revenue catches costs in time.
- Free
- No signup
- Runs in your browser
How to use Runway & Default-Alive Calculator
- Enter your cash in the bank and your monthly expenses.
- Enter your current MRR, its monthly growth, and your gross margin.
- Read net burn, runway at today's burn, the date cash runs out, and any break-even month.
- Check the chart of projected cash by month.
Tip: Default alive means that, at your current growth, revenue catches costs before the cash runs out.
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Default dead
At this pace the cash runs out first. You need about 19.2% monthly MRR growth to reach break-even in time — or lower costs.
Net burn / month$2,575
Runway at today's burn7.8 mo
Cash runs outMonth 9Aug 2027
Break-even—
Cash over time
Default alive (Paul Graham): if costs stay flat and revenue keeps growing at the current rate, you reach profitability on the money you have.
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