Burn Rate & Startup Runway Calculator
Enter your cash on hand, monthly revenue, and monthly expenses to instantly see your net burn rate and how many months of runway you have left. Nothing is sent to a server — every number stays on your device.
Your numbers
Results
Tight runway. Consider trimming expenses or raising revenue.
That's roughly April 2027 at today's pace.
Want this updated automatically from your bank CSV — with tax buffer, charts, and a 12-month projection?
Try the full FlowPulse dashboardHow burn rate works
What is burn rate?
Burn rate is how fast your business spends cash. Gross burn is your total monthly expenses; net burn subtracts the revenue you collect — it's the cash you actually lose each month.
How is runway calculated?
Runway = cash on hand ÷ net monthly burn. If you have $50,000 in the bank and burn $5,000 a month, you have 10 months of runway before you run out.
What's a healthy runway?
Most operators aim for 12–18 months. Under 6 months is a red flag — usually time to cut costs or raise capital. If your net burn is zero or negative, runway is effectively infinite at today's pace.