Burn Rate & Runway Calculator
Free burn rate and runway calculator — see your net monthly burn and exactly how many months of cash you have left.
You are burning $50,000/mo, giving roughly 10.0 months of runway. Investors typically want to see 18+ months after a raise.
Extend your runway without cutting growth.
AMW Suite consolidates your tools into one platform and our team drives the visibility that brings revenue in faster.
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How to Use This Calculator
Enter your cash on hand, monthly expenses, and monthly revenue.
The calculator finds your net burn (expenses minus revenue).
It divides cash by net burn to show your runway in months — and flags whether you are profitable.
Frequently Asked Questions
How do you calculate runway?
Runway = cash on hand ÷ net monthly burn, where net burn = monthly expenses − monthly revenue. If you have $500,000 and burn $50,000/month net, you have 10 months of runway.
What is the difference between gross and net burn?
Gross burn is total monthly expenses. Net burn subtracts revenue from expenses — it is the cash you actually lose each month, and the right number for calculating runway.
How much runway should a startup have?
A common target is 18–24 months after a raise, giving you time to hit milestones before needing more capital. Below 12 months, most founders should already be fundraising or cutting burn.
What does "default-alive" mean?
Coined by Paul Graham, default-alive means that on current growth and burn, you reach profitability before running out of money — without needing to raise again. Default-dead is the opposite.
How can I extend my runway?
Grow revenue, cut non-essential spend, or consolidate tools. Replacing several point tools with one platform reduces both cost and overhead, which directly lengthens runway without slowing the team down.
Why Use This Calculator
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See net monthly burn at a glance
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Calculate months of runway remaining
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Know if you are default-alive
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Plan raises and spend with real numbers
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"Simple, fast, and actually useful. I've bookmarked this for every campaign planning session."
Growth Lead, Fintech Startup