Enter your cash, monthly spend, and any revenue to see how many months of runway you have left.
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Runway (months) = cash on hand ÷ net monthly burn, where net burn = monthly spend − monthly revenue. If revenue exceeds spend, you are cash-flow positive and runway is effectively unlimited.
Many investors suggest keeping 12–18 months of runway so you have time to hit milestones and raise the next round without operating from a position of weakness.