Burn Rate and Runway Calculator
How many months the cash lasts at the current rate of spending.
Method
How it works
Monthly expenses minus monthly revenue gives net burn. Cash divided by positive net burn estimates how many months the current cash balance can last.
If revenue equals or exceeds expenses, net burn is zero or negative and the model treats runway as unlimited. The estimate assumes cash, revenue and expenses remain constant.
Common questions
Frequently asked questions
What is the difference between gross burn and net burn?
Gross burn is monthly expenses, while net burn subtracts monthly revenue from those expenses.
Why is runway unlimited when revenue exceeds expenses?
The business is not consuming its cash balance under the entered monthly figures.
Does runway include future fundraising or changing costs?
No. It is a static estimate using the current inputs only.
Not financial advice. This calculator is for general informational purposes only. Check figures independently before making financial decisions.