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How I Built a Startup Runway Calculator in Google Sheets (Free Template)

Why Every Startup Needs a Runway Calculator

As a founder, your cash runway is the single most important metric. Knowing exactly how many months you have before hitting zero determines everything: when to raise, when to cut costs, when to accelerate hiring.

The Problem with Most Runway Trackers

Either they're overcomplicated (full P&L models) or too simplistic (just cash / burn). Founders need a middle ground: 5 minutes of input = 5 months of clarity.

What This Spreadsheet Does

My free Google Sheets template handles:

  • Monthly burn tracking with conditional formatting
  • 3 built-in scenarios (base/worst/best case)
  • Automatic funding alerts (6/3/1 month thresholds)
  • Break-even date projection

Try It Yourself

I've published the full template on Gumroad (free): [link to Gumroad product after publishing]

Pro tip: Use the 'Worst Case' scenario first. If your runway stays above 12 months, you have margin. Below 6 months? Start fundraising conversations now.

What's your current runway? Drop your numbers in the comments and I'll tell you if you're in the danger zone.

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