Cash Runway Calculator
Enter your cash on hand and monthly net burn to see how many months of runway you have.
How to use this calculator
- 1Enter your current cash balance.
- 2Enter your monthly net burn — cash out minus cash in each month.
- 3See how many months (and weeks) of runway you have before you run out.
How the Cash Runway Calculator works
Runway is how long your business can keep going before the cash runs out, at your current rate of spending. Divide the cash you hold by your monthly net burn — the cash you lose each month after any revenue — and you get the number of months you have. If you’re cash-flow positive, there’s no burn and runway is effectively unlimited.
Runway is the number founders watch most closely, because it sets the clock on raising money or reaching profitability. Many aim to keep 12–18 months in the bank. The quickest way to extend it without cutting costs is to invoice faster and collect sooner.
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Create an invoice freeFrequently asked questions
What is cash runway?
The number of months your business can keep operating before it runs out of cash, at your current burn rate. Runway = cash on hand ÷ monthly net burn.
What is net burn?
Net burn is the cash you lose each month — total spending minus any revenue coming in. If you’re cash-flow positive there is no burn and runway is effectively unlimited.
How much runway is healthy?
Many startups aim to keep 12–18 months of runway so they can operate and raise the next round without a cash crunch. Faster invoicing and collections extend it.
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