Founder Glossary · Financial Projection

How many months you have.

What it is

Runway is the number of months your company can keep operating at its current net burn before the cash runs out.

Runway (months) = cash in the bank ÷ monthly net burn

An example

A company holds $180,000 and burns $18,000 a month net. Its runway is $180,000 ÷ $18,000 = 10 months. (Illustrative figures.)

Why it matters

Runway tells you how long you have to reach the next milestone that changes your position, whether that is profitability or the next round of funding. Many founders aim for 18 to 24 months of runway after raising money, and start raising again with at least six months left, because fundraising usually takes longer than planned.

How to extend it

  • Lower net burn by cutting costs that do not move a key number.
  • Grow revenue, especially recurring revenue.
  • Collect what you are owed faster.
  • Pursue funding that does not cost ownership, such as grants.

Common mistakes

  • Dividing by gross burn one month and net burn the next.
  • Assuming burn stays flat while you plan to hire.
  • Counting money that has been promised but not received.

Related terms: Burn Rate · Break-Even Point · Bootstrappers

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