Cash Runway Calculator
Cash runway calculator
Runway = cash ÷ net monthly burn, where net burn is monthly expenses − monthly revenue. $100k of cash burning $20k/month net is 5 months of runway. If revenue covers expenses, you're cash-flow positive with effectively unlimited runway. Enter your numbers below.
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Net burn / month
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Out of cash
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at this burn
Frequently asked questions
How do you calculate cash runway?
Cash ÷ net monthly burn (expenses − revenue). $100k burning $20k/mo net = 5 months.
What is net burn rate?
Cash lost per month after income — expenses minus revenue. If revenue ≥ expenses, burn is zero/negative and you're cash-flow positive.
What's a healthy runway?
Many startups keep 12–18 months. Under ~6 months usually signals to cut burn or raise. Depends on stage.
A directional estimate assuming constant burn. Real burn varies month to month. Not financial advice.