Free tool · runs entirely in your browser
How long can you keep this up?
Enter your cash, your average month, and any one-off hits or windfalls you already know about. Nothing is sent anywhere — the math happens on this page.
Your runway
— months
- Net per month
- —
- Cash hits zero
- —
- Cash after 12 months
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Enter your numbers.
Make it a habit
A number you check once is trivia. A number you check weekly is steering.
Get the 13-week spreadsheet habit by email — one short message a week on running the forecaster, reading the trend, and knowing when to say no to work. Or skip the course and take the workbook itself: the Cash Flow Command Center is the exact 13-week forecaster this calculator is a sketch of, for $39.