How to Calculate Your Startup Runway

Runway = cash in bank ÷ monthly burn rate.

3 min read·Updated July 6, 2026

TL;DR

Runway = cash in bank ÷ monthly burn rate. Burn rate = total monthly expenses minus revenue. Aim for 12+ months of runway before going full-time; 6 months minimum.

Introduction

Runway = cash in bank ÷ monthly burn rate. Burn rate = total monthly expenses minus revenue. Aim for 12+ months of runway before going full-time; 6 months minimum.

This guide is written for first-time founders and solo entrepreneurs who need practical, actionable advice — not theory. Whether you're just getting started or hitting a specific roadblock, the steps below will help you move forward with confidence.

What You Need to Know

Burn rate calculation is a critical part of getting this right. Start by researching your specific requirements — they vary by business type, revenue, and location. Document your current situation before making changes.

For most founders, the practical approach is to start simple and add complexity only when your business demands it. Don't over-engineer early decisions, but don't ignore them either. Many founders regret waiting too long to address burn rate calculation.

If you're operating across multiple regions (US, UK, EU), note that rules differ significantly. Always verify current regulations with official government sources or a qualified advisor.

Step-by-Step Process

Runway scenarios is a critical part of getting this right. Start by researching your specific requirements — they vary by business type, revenue, and location. Document your current situation before making changes.

For most founders, the practical approach is to start simple and add complexity only when your business demands it. Don't over-engineer early decisions, but don't ignore them either. Many founders regret waiting too long to address runway scenarios.

If you're operating across multiple regions (US, UK, EU), note that rules differ significantly. Always verify current regulations with official government sources or a qualified advisor.

Common Mistakes to Avoid

Extending runway is a critical part of getting this right. Start by researching your specific requirements — they vary by business type, revenue, and location. Document your current situation before making changes.

For most founders, the practical approach is to start simple and add complexity only when your business demands it. Don't over-engineer early decisions, but don't ignore them either. Many founders regret waiting too long to address extending runway.

If you're operating across multiple regions (US, UK, EU), note that rules differ significantly. Always verify current regulations with official government sources or a qualified advisor.

When to Get Professional Help

When runway gets critical is a critical part of getting this right. Start by researching your specific requirements — they vary by business type, revenue, and location. Document your current situation before making changes.

For most founders, the practical approach is to start simple and add complexity only when your business demands it. Don't over-engineer early decisions, but don't ignore them either. Many founders regret waiting too long to address when runway gets critical.

If you're operating across multiple regions (US, UK, EU), note that rules differ significantly. Always verify current regulations with official government sources or a qualified advisor.

Key Takeaways

  • How to Calculate Your Startup Runway starts with understanding your specific situation and region.
  • Take action on one step today rather than trying to do everything at once.
  • When in doubt, consult a qualified professional for your jurisdiction.
  • Bookmark related guides below to build a complete picture.

Frequently Asked Questions

Should I include my salary in burn?+
Yes — include everything the business pays, including your own compensation.
What runway is too short?+
Under 3 months is critical. Start cutting costs or raising money immediately.