Burn Rate / Runway Calculator

What this tool does

Calculates burn rate (expenses minus revenue), runway in months, and a 12-month cash projection. Optional revenue growth rate. Educational only; not financial advice. Not AI-powered.

When to use it

• Planning runway and need a simple burn and projection
• Modeling what happens if revenue grows (or stays flat)
• Preparing a board or investor update with cash metrics

Inputs explained

• Cash on hand – Current cash balance.
• Monthly revenue, monthly expenses – Current run rate.
• Monthly revenue growth % – (Optional) Growth applied to revenue each month in the projection.

How to use it

1. Enter cash, revenue, expenses. Optionally add revenue growth. Click Calculate.
2. Review burn, runway, and 12-month projection. Use scenarios to compare.

Common mistakes

• Using one-off revenue or expenses (use recurring run rate)
• Assuming growth is linear (this tool applies simple monthly growth)
• Forgetting to update when cash or burn changes (re-run when assumptions change)

Use it with AI

This tool is not AI-powered. It is a calculator. You can use the results with an AI assistant in these ways:

• Paste the runway and projection and ask for a one-page summary of risks and options.
• Ask an AI to suggest 5 levers to extend runway (cut costs, grow revenue, raise).
• Use the AI Toolkit and Founder Ops AI Workflow for cash and ops planning.

Explore the AI Toolkit and Founder Ops AI Workflow for more.

Related tools

• Break-even Calculator
• SaaS ROI Deal Analyzer
• Loan / Debt Payoff Calculator

Related glossary terms

• Burn rate
• Runway
• Fixed costs

Related pages

• AI Hub
• AI Toolkit
• Business / Finance
• Break-even Calculator
• Loan / Debt Payoff Calculator
• SaaS ROI Deal Analyzer
• Freelance Rate Calculator
• Employee vs Contractor Calculator

FAQ

What is runway?

Months until cash runs out at current burn.

Does growth assume linear?

Yes. Simple monthly growth applied to revenue.

Is this financial advice?

No. Educational only.