All Tools
Calculate your burn rate, runway, and zero date instantly. See exactly when the money runs out — or confirm you're profitable.
Know exactly where your startup stands financially. Enter your bank balance, monthly revenue, and monthly expenses to instantly see your burn rate, how many months of runway you have left, and the exact date your cash hits zero. No signup, no tracking, runs entirely in your browser.
Burn rate is the speed at which a company spends its cash reserves. Gross burn rate is your total monthly expenses regardless of revenue. Net burn rate subtracts revenue from expenses: Net Burn = Monthly Expenses - Monthly Revenue. If your net burn is $20,000/month and you have $200,000 in the bank, your runway is 10 months. A positive net burn means you are spending more than you earn. A negative net burn means you are profitable.
The most effective strategies include renegotiating vendor contracts and leases, switching to remote or hybrid work to cut office costs, automating manual processes to reduce headcount needs, pausing non-essential hiring, cutting software subscriptions you are not actively using, and focusing marketing spend on channels with measurable, proven ROI. Use the scenario slider above to see how even a 10-20% expense reduction can dramatically extend your runway.
Most investors and advisors recommend maintaining at least 12 to 18 months of runway at all times. If your runway drops below 6 months, it is time to act urgently — either cut costs aggressively, accelerate revenue, or begin fundraising immediately. Below 3 months is a critical danger zone where your options narrow sharply. This calculator helps you spot trouble early and model scenarios before making decisions.