Startup finance

Runway Calculator

Calculate how many months of runway you have left before cash runs out.

Enter your values

Results update as you type. Nothing is sent anywhere — the maths runs in your browser.

$

Total cash and equivalents available.

$

Net cash you spend per month (expenses minus revenue).

Formula

Runway (months) = Cash on Hand ÷ Monthly Net Burn

Runway tells you how long until you run out of money at the current spend rate. Start fundraising with 6+ months remaining.

Months of Runway
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Enter values to calculate.

Weeks of runway
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Cash on hand
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Monthly burn
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Status
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Frequently asked questions

How much runway should I have?

18-24 months after a funding round. Start fundraising at 6-9 months remaining.

What if runway is under 6 months?

Act immediately: cut costs, accelerate revenue, or begin emergency fundraising.

Should I include revenue?

Yes, use net burn (expenses minus revenue) for a realistic runway estimate.

How do I extend runway?

Reduce expenses, increase revenue, raise a bridge round, or negotiate extended payment terms with vendors.