Measure monthly cash burn and runway for startup sustainability.
Tip: figures are local to your browser and are not uploaded.
The Cash Burn Rate Calculator shows how quickly your business is spending its cash reserves and exactly how many months of runway remain. Whether you are a pre-revenue startup or a growing company managing seasonal cash flow, this tool gives you the visibility needed to plan ahead and avoid running out of funds.
Cash burn rate measures the net amount of cash a business spends each month after accounting for any incoming revenue. By dividing your current cash on hand by your monthly net burn, you get your runway, the estimated number of months before funds are exhausted. Monitoring burn rate is critical for startups seeking funding, businesses navigating slow seasons, and any company that needs to time its next capital raise or cost reduction. This free, browser-based calculator delivers the answer in seconds.
Enter your current cash on hand, your average monthly inflow, and your average monthly outflow. Click Calculate and the tool computes your net burn rate and remaining runway instantly. All calculations run locally in your browser, so your sensitive financial data never leaves your device and no login is required. Adjust any figure to model different spending scenarios, revenue projections, or fundraising outcomes in real time.