Startup Burn Rate & Runway Calculator

Calculate startup burn rate and monthly runway longevity. Find how many months until cash runs out.

What Is Startup Burn Rate?

Burn rate maps the exact velocity at which an early-stage startup consumes its available cash reserves before reaching profitability or securing fresh capital injections. Determining your precise runway—the exact count of months remaining before your bank balance hits zero—is the single most vital metric for any startup founder navigating toward viability.

Who Needs to Monitor Monthly Runway?

Venture-backed startup founders protecting seed capital, pre-revenue e-commerce creators tracking survival horizons, and agile corporate teams managing project budgets rely on burn rate logs to survive.

How to Calculate Burn Rate and Runway Months

1. Enter your current total available cash balance (supports all global currencies). 2. Input your average aggregate monthly operating expenditures. 3. Enter any recurring monthly revenue inflows. 4. Click calculate to unlock your net burn rate and monthly runway index.

Strategies to Extend Your Cash Runway

The computational engine delivers your net monthly cash burn (total outlays minus incoming revenue) alongside your surviving runway lifespan in months. If your remaining runway metrics slide below 6 months, you must immediately execute overhead cuts or kickstart an aggressive fundraising round.

💡 Pro Tip: Always schedule your institutional fundraising rounds or path to profitability to wrap up at least 3 months before your core runway expires. Professional venture capitalists can spot a desperate cash position instantly, which completely strips away your valuation leverage. Calculate your longevity now!

Gross Burn vs. Net Burn: Key Differences

Q: What is a safe burn rate for startups in 2026?

A: No static 'good' rate. A startup burning $50K/month with 20% MoM revenue growth is healthier than one burning $10K/month with flat growth.

Q: What is the recommended baseline cash runway?

A: Leading VCs recommend minimum 18 months of operational runway. Gives teams peace of mind to focus on growth vs. survival.

Q: What is the difference between gross and net burn?

A: Gross burn = total monthly cash outflows. Net burn = outflows minus revenue. Net burn shows your actual survival timeline.

Q: When should founders start a fundraising round?

A: Kick off campaigns 6 months before you need capital. If runway drops below 9 months, treat it as emergency and pitch immediately.