How does the Runway Calculator work?

Enter your values into the input fields, adjust any parameters, and click Calculate. The tool processes your input instantly and displays accurate results. All calculations happen locally in your browser for privacy and speed.

Is the Runway Calculator free to use?

Yes, this tool is completely free with no signup required. Everything runs locally: Current Cash Balance and other values are processed on your device, never sent to a server — your data is never uploaded to any server, ensuring complete privacy and security.

Are the Runway Calculator results accurate?

Yes, the calculator uses standard mathematical formulas and algorithms to ensure accurate results. Calculations are performed using JavaScript's built-in precision. For financial or medical decisions, always verify with a professional.

⏳ Runway Calculator

Simulate cash runway under optimistic, base, and pessimistic growth scenarios

Enter Company Financials

Current Cash Balance ($)

Monthly Revenue Growth Rate (%) for Each Scenario

🟢 Optimistic

🔵 Base

🔴 Pessimistic

Current Monthly Revenue ($)

Current Monthly Expenses ($)

Monthly Expense Growth (%)

📖 Runway Calculation Guide

Optimistic: High revenue growth, longest runway
Base: Revenue grows as expected
Pessimistic: Slow or no revenue growth
Runway = months until cash runs out (considering revenue/expense growth)
Healthy runway > 18 months; < 6 months is a red flag

⏳ Runway Calculator

Enter Company Financials

📖 Runway Calculation Guide

🔗 Related Tools