Startups don't die because they run out of ideas; they die because they run out of money. Runway—the time you have left before the bank account hits zero—is the most critical metric for early-stage founders.
Understanding Startup Metrics
Burn Rate: The amount of cash you are losing each month.
Runway: Cash Balance / Monthly Burn Rate.
If you have $500k in the bank and burn $50k/month, you have 10 months of runway. That means you need to either become profitable or raise more money within roughly 7 months (leaving 3 months buffer for closing the deal).
Funding Strategies
Investors want to see that you have enough runway to hit the next set of value-driving milestones. A Seed round should typically buy you 18-24 months of runway. This gives you:
- 12-15 months to build and grow.
- 3-6 months to fundraise for the next round.
Plan Your Survival
Model different scenarios. What if revenue grows slower? What if we hire 2 more engineers? See how it impacts your death date.
Launch Runway CalculatorCalculating Valuation
Valuation at the early stage is an art. It's often based on the team, the market size (TAM), and comparable deals in your sector. Knowing your runway helps you negotiate from a position of strength—you never want to fundraise when you are desperate.
Using the Startup Runway Calculator
Use our Startup Runway Calculator to keep a constant eye on your lifeline.
Combine this with the Break-Even Calculator to see the path to self-sufficiency, and the Decision Delay Calculator to understand the cost of slow execution.
About the Author
Shreedeep Deshmukh is a financial technology expert passionate about making complex financial concepts accessible to everyone. With a background in finance and software, he builds tools that help thousands make better money decisions.
Connect on LinkedIn