Runway Calculator
How long will the money last? Add expected monthly growth in revenue and costs to see whether you reach profitability before the cash runs out (default alive).
Your numbers
RESULT
Runway with growth
18 mo
cash-out: Mar 2028
Runway at today's burn
15 mo
- Net burn today
- $100K
- Months to profitability
- Not within runway
Default dead — you need to raise, cut costs or grow faster before the cash runs out. Start fundraising with at least 6–9 months of runway left.
Raising money?
Fund Force runs an AI analysis of your market and matches you with investors, accelerators and grants that fit your stage and sector.
Get matched with Fund Force →The formula, in plain English
- Runway (months) = Cash ÷ Net monthly burn
- Net burn = Monthly expenses − Monthly revenue
- Default alive: does growth reach profitability before cash runs out?
Frequently asked questions
How much runway should a startup have?
Raise enough for 18–24 months to reach the next credible milestone, plus a 25% buffer. Start the next raise with at least 6–9 months left.
What does default alive mean?
Paul Graham's test: if nothing changes — no new funding — does current growth get you to profitability before the money runs out?
Should I use gross or net burn?
Runway uses net burn (expenses minus revenue). Gross burn is useful for understanding your cost base.
Results are estimates for planning and education — not financial, legal or tax advice.
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