Formula
Net burn = monthly cash expenses − monthly cash revenue. Runway months = available cash ÷ net burn.
BUSINESS
Cash Runway Calculator
Estimate monthly net burn, runway and projected cash-out date.
CALCULATOR GUIDE
How to use the Cash Runway Calculator
Estimate net monthly burn, cash runway and an approximate cash-out date from current cash, recurring revenue and monthly expenses.
Worked example
With $240,000 cash, $40,000 monthly revenue and $70,000 monthly expenses, net burn is $30,000 and runway is 8 months.
Assumptions and limits
The estimate assumes constant monthly cash flow. Hiring, seasonality, financing, annual bills, receivables and one-time costs should be modeled separately.
Frequently asked questions
What is cash runway?
Cash runway is the estimated time until available cash is exhausted at the current net burn rate.
What if revenue exceeds expenses?
The business is cash-flow positive under the entered assumptions, so a finite burn-based runway is not calculated.
How this calculator works
Enter your known values and select Calculate result. Review units and inputs before relying on the planning estimate.
Actual quantities, prices and requirements can vary. Confirm critical work with a supplier or qualified professional.