Runway

Runway is a key performance indicator that quantifies the amount of time a company has until its cash balance reaches zero. It is primarily used by startups, venture-backed companies, and businesses operating at a loss to gauge their financial stability and operational viability over the near to medium term. The metric provides a clear timeline for management to make critical decisions, such as securing new funding, pivoting the business model, or cutting expenses.

The calculation for runway is straightforward: divide the current cash balance by the net cash burn rate. A company's cash burn is the net amount of money it loses per month. For example, a company with $1 million in cash and a net monthly burn of $100,000 has a runway of 10 months. Managing runway effectively involves carefully monitoring both cash inflows from revenue and financing, and cash outflows from operating expenses and capital expenditures.

Runway is a central component of financial planning and scenario analysis. Companies often model different scenarios (e.g., best-case, worst-case) to understand how changes in revenue growth or spending can impact their runway. This foresight allows finance teams and leadership to proactively adjust their strategies to extend their operational timeline and achieve key milestones before needing to raise additional capital.