Startup Runway Calculator

What is Startup Runway Calculator?

Runway is the number of months your startup can continue operating before running out of cash. It is calculated by dividing your current cash reserves by your monthly burn rate (net cash outflow).

How to use this calculator

1. 1Enter your current cash balance — the total cash in your bank accounts today.
2. 2Enter your gross monthly burn rate: total cash outflow including salaries, software, rent, and all operating expenses.
3. 3Optionally enter monthly revenue so the calculator computes your net burn rate automatically.
4. 4Review the calculated runway in months, projected cash-out date, and color-coded progress bar.
5. 5Use the scenario section to model how cutting costs or growing revenue would extend your runway.

Why this matters for founders

Runway determines your survival timeline and dictates when you need to fundraise, cut costs, or reach profitability. Running out of cash is the number one reason startups die, so knowing your runway is the most fundamental metric a founder can track.