The Startup Runway Calculator tells you exactly how many months of cash you have — under your base case, an optimistic scenario, and a pessimistic one. Five input tabs, KPI dashboard, and up to 48 months of projections in a single Excel file.
Runway is simple to define and surprisingly easy to miscalculate. Here’s the formula, how to avoid the common errors, and how to build a scenario model that gives you a defensible number for investors and the board.
When runway gets tight, generic advice like ‘cut costs’ doesn’t help. This guide covers 12 specific levers a finance team can pull to extend runway — with concrete numbers, worked examples, and a framework for modeling the impact of each one.