Runway Calculator
Compute startup runway from cash balance and monthly burn — months until decisions. Act at 12 months, not 3 — free, local, no signup.
How to Use the Runway Calculator
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Frequently Asked Questions
How many months left?
Cash ÷ monthly burn, plain division — no revenue or growth adjustment. Defaults ($500k ÷ $50k) give 10.0 months; the bar scales to 60 months with green above 18, amber above 6, red at or below 6. Three presets: Seed, Series A, Bootstrapped.
When to act?
12+ months: operate; 6–12: plan (raise/cut/grow); under 6: emergency mode. Founders consistently act two quarters late.
Growth-adjusted runway?
Not modeled — this tool divides cash by current burn only. For growth cases, lower the burn input yourself to simulate rising revenue, one scenario at a time.
Do runway figures upload?
No — math runs locally in your browser. Figures never leave your device.
Last updated October 2026