How many months can you survive? Enter your cash and burn rate to find out — with visual countdown and scenario planning.
Running out of cash is the number one reason startups fail. This calculator shows exactly how many months your current funds will last based on your burn rate, helping you decide when to fundraise, cut costs, or push for profitability.
Runway is how many months your startup can operate before running out of cash. The formula: Cash ÷ Net Monthly Burn = Months of Runway
Net burn = Monthly expenses minus monthly revenue. If you spend $10K/month and earn $4K, your net burn is $6K.
Rule of thumb: Most investors and advisors recommend 12-18 months of runway. Below 6 months is the "danger zone" — time to cut costs or raise funding.