Startup Runway Calculator

Calculate how many months your startup can operate before running out of cash. Track burn rate and plan your next funding round.

How Runway is Calculated

This calculator analyzes your startup's financial position:

Gross burn: Total monthly expenses (salaries, rent, marketing, etc.)
Net burn: Gross burn minus monthly revenue
Simple runway: Cash balance ÷ net burn = months until zero
With growth: If revenue grows each month, runway extends as you approach profitability

Runway gives you a clear timeline to either reach profitability or raise more funding.

What is startup runway?: Runway is the number of months a startup can operate before running out of cash, assuming current income and expenses stay constant. If you have $100,000 and burn $20,000/month net, your runway is 5 months. Startups typically aim for 12-18 months of runway.
What is burn rate?: Burn rate is how fast a company spends money. Gross burn is total monthly expenses. Net burn is expenses minus revenue. A company with $50,000 in expenses and $20,000 in revenue has a gross burn of $50,000 and net burn of $30,000.
How much runway should a startup have?: Most investors and advisors recommend 12-18 months of runway. Less than 6 months is critical and requires immediate fundraising. 18-24 months is comfortable and gives time to reach milestones. Very early-stage startups often have shorter runways.