Startup Runway Calculator
Find out exactly how many months your startup can survive before it needs more funding. Enter your cash balance, monthly revenue and monthly costs — add optional growth or shrink rates to model the future more realistically.
Cash used
How to use
- Enter your current cash balance, your monthly revenue and your total monthly costs (salaries, rent, servers, marketing and everything else).
- Optionally add a monthly revenue growth rate and a monthly cost change rate to model a realistic future — costs that shrink are negative numbers.
- The calculator shows your net burn, months of runway, the date your cash runs out, and advice based on your runway length.
- Re-run with different numbers to see how cost cuts or faster growth change your runway.
Note: runway is a simple estimate — cash / net monthly burn — extended month by month when growth rates are set. Real life has surprises like late payments and one-off expenses, so treat this as planning guidance, not a guarantee.