Burn Rate Calculator
How many months of cash do you have left? Enter your cash balance and monthly spend to see your burn rate, runway, and zero-cash date instantly.
Enter 0 if you have no revenue yet.
Salaries, rent, software, cloud, marketing — everything you spend per month.
📅 Months of Runway
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— net burn/mo · —
Net Burn Rate
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expenses − revenue
Gross Burn
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total monthly spend
Status
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verdict
🎯 What this means
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📈 Extend your runway with the right tools
📚 See top-rated startup finance books on Amazon →📌 5 Tips to Extend Your Runway
- ✓ Track weekly, not monthly. Burn rate can spike suddenly — a annual software renewal, a new hire, or a marketing campaign. Weekly tracking catches these before they compound.
- ✓ Know your default-alive number. The revenue level where monthly income covers expenses is your break-even point. If you can get there, your runway becomes infinite.
- ✓ Model multiple scenarios. What happens if revenue grows 10%/month? If expenses drop 20%? Run the numbers with different assumptions to understand your range of outcomes.
- ✓ Start fundraising with 6+ months left. Raising capital takes 3-6 months. If you wait until you have 3 months of runway, you are already out of time and will negotiate from weakness.
- ✓ Cut deep, not shallow. A 20% cost cut extends runway by 25%. A 40% cut nearly doubles it. One decisive cut beats ten small ones — founders who trim early keep optionality.
Disclaimer: This calculator provides burn rate and runway estimates for educational purposes only. It does not account for seasonal variations, one-time expenses, deferred revenue, or accounts receivable timing. Not financial advice — consult a qualified financial advisor or CFO for startup-specific financial planning.
Related Tools
Burn rate is just one piece of your startup's financial picture. These ten calculators cover the rest — from break-even analysis and profit margins to working capital, ROI, overhead costs, markup, SaaS metrics, and your overall financial health score.
- Break-Even Calculator — find the sales volume where revenue equals costs; the point where your burn rate hits zero and you become default alive.
- Profit Margin Calculator — measure how much of every revenue dollar stays as profit; the margin that determines whether scaling reduces or accelerates burn.
- Working Capital Calculator — see whether your business has the short-term liquidity to fund operations between funding rounds.
- ROI Calculator — evaluate whether the capital you are burning is generating a return that justifies the spend.
- Overhead Cost Calculator — break down your fixed costs to understand which expenses are structural vs. variable in your burn rate.
- Markup Calculator — set the right price on your product so each sale contributes meaningfully toward covering your monthly burn.
- Freelancer Hourly Rate — if you solo-consult alongside your startup, calculate the rate you need to offset your personal burn.
- Financial Health Score Calculator — a 10-factor snapshot that puts your burn rate in the context of your overall financial life.
- Invoice Generator — generate professional invoices to get paid faster; the quickest way to reduce net burn is faster collections.
- SaaS Metrics Calculator — track MRR, ARR, churn, and customer lifetime value alongside burn rate to see the full subscription-finance picture.