Cash Runway Calculator
Find how many months of cash you have left and when to start fundraising.
What the Cash Runway Calculator does
Runway is cash divided by net monthly burn — how long you can operate before the money runs out. Because fundraising takes months, the practical deadline is well before the cash-out date.
Formula
Runway = Cash ÷ Net monthly burnStart fundraising = Runway − Months needed to raiseRaise for 18 months = Burn × 18 − Current cash
Inputs explained
| Input | Unit | Required | Notes |
|---|---|---|---|
| Current cash | selected currency | Yes | Accepts more than 0. |
| Net monthly burn | selected currency | Yes | Expenses minus revenue. Accepts more than 0. |
| Planned raise amount | selected currency | Optional | Accepts 0 or more. |
| Months needed to raise | number | Optional | Accepts 0 or more. |
| Currency | one of 10 options | Optional | — |
How to use it
- Choose Currency.
- Enter Current cash and Net monthly burn.
- Optionally add Planned raise amount and Months needed to raise.
- Select Calculate.
Worked example
$1,400,000 in the bank burning $95,000 a month, with a 5-month raise process.
- Cash
- 1400000
- Burn
- 95000
- Raise months
- 5
14.7 months of runway, so fundraising should begin in about 9.7 months.
Frequently asked questions
How much runway do investors want to see?
Typically 18–24 months after a round. It gives enough time to hit the milestones that justify the next raise.