Cash Runway Calculator
Enter the cash you have, what comes in, and what goes out. See how many months that cash lasts.
Months of runway
15
Cash runs out in December 2027. Net burn starts at $4,000.00 a month.
- Cash on hand
- $60,000.00
- Monthly revenue
- $10,000.00
- Monthly expenses
- $14,000.00
- Net burn
- $4,000.00
- Revenue growth
- 0.00%
- Expense growth
- 0.00%
- Cash runs out
- December 2027
Net burn is month-one expenses minus revenue. A negative amount is a monthly surplus.
Forecast how long the cash you have will cover operating costs.
Cash Flow MasteryShow month-by-month cashHide month-by-month cash
Month-by-month cash
Each row applies that month's revenue and expenses, then shows the cash left.
| Month | Date | Revenue | Expenses | Net | Cash left |
|---|---|---|---|---|---|
| 1 | Oct 2026 | $10,000.00 | $14,000.00 | -$4,000.00 | $56,000.00 |
| 2 | Nov 2026 | $10,000.00 | $14,000.00 | -$4,000.00 | $52,000.00 |
| 3 | Dec 2026 | $10,000.00 | $14,000.00 | -$4,000.00 | $48,000.00 |
| 4 | Jan 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $44,000.00 |
| 5 | Feb 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $40,000.00 |
| 6 | Mar 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $36,000.00 |
| 7 | Apr 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $32,000.00 |
| 8 | May 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $28,000.00 |
| 9 | Jun 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $24,000.00 |
| 10 | Jul 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $20,000.00 |
| 11 | Aug 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $16,000.00 |
| 12 | Sep 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $12,000.00 |
| 13 | Oct 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $8,000.00 |
| 14 | Nov 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $4,000.00 |
| 15 | Dec 2027 | $10,000.00 | $14,000.00 | -$4,000.00 | $0.00 |
How it's calculated
Net burn is the first month's expenses minus that month's revenue. The amounts you enter are month one. Each later month applies the optional growth rates, then cash changes by revenue minus expenses. When growth is zero and expenses are higher, months of runway are cash on hand divided by that monthly gap. The table keeps going until cash reaches zero, or for 50 years if it does not. A projection that never reaches zero is cash-flow positive, and it has no run-out date.
Net burn = expenses − revenue
Next month = this month × (1 + monthly growth)
Reviewed by WH2L Digital. Last reviewed October 31, 2026.
Questions
How is net burn calculated?
Net burn is the first month's expenses minus that month's revenue. A positive number is cash leaving. A negative number is a monthly surplus.
How do the monthly growth rates work?
The revenue and expenses you enter are month one. Each later month multiplies revenue by one plus the revenue growth rate, and expenses by one plus the expense growth rate. Leave a rate blank for no change.
When is the projection cash-flow positive?
It is cash-flow positive when revenue covers expenses in every checked month, so the cash balance never reaches zero. The check looks ahead 50 years. If cash would run out later than that, the result says cash still remains.
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Educational estimates only, not financial advice.