Cash Runway Calculator
Last updated: October 15, 2026
Estimate business cash runway from available cash, recurring revenue, operating expenses, debt payments, planned spending and a minimum reserve.
Estimated cash runway
—
- Estimated monthly net cash burn: —
- Cash available above reserve after planned spending: —
- Estimated runway to zero cash: —
- Monthly revenue needed for no burn: —
On this page
Quick summary: Estimate business cash runway from available cash, recurring revenue, operating expenses, debt payments, planned spending and a minimum reserve.
Read the complete guide
Updated reference sections in this guide are in English.
What this calculator estimates
Estimate business cash runway from available cash, recurring revenue, operating expenses, debt payments, planned spending and a minimum reserve.
How to use it
Enter Current unrestricted cash ($); Monthly cash revenue ($); Monthly operating cash expenses ($); Monthly debt payments ($); Planned one-time spending ($); Minimum cash reserve ($). Select Calculate to update the results.
How the calculation works
Recurring expenses and debt payments are reduced by recurring cash revenue to estimate monthly net burn. Planned spending and the desired reserve reduce available cash.
Worked example: starting scenario
| Current unrestricted cash ($) | 750000 |
|---|---|
| Monthly cash revenue ($) | 120000 |
| Monthly operating cash expenses ($) | 185000 |
| Monthly debt payments ($) | 12000 |
| Planned one-time spending ($) | 90000 |
| Minimum cash reserve ($) | 100000 |
| Estimated cash runway | 7.3 months |
|---|---|
| Estimated monthly net cash burn | $77,000.00 |
| Cash available above reserve after planned spending | $560,000.00 |
| Estimated runway to zero cash | 8.6 months |
| Monthly revenue needed for no burn | $197,000.00 |
Important limitations
Collections timing, seasonality, financing, taxes, payroll cycles, restricted cash and sudden cost changes can make actual runway shorter or longer.