Burn rate & runway calculator

It takes Cash in bank and Monthly net burn and derives Runway (months) and Runway (years) from them. The calculation is live as you type, so the result updates on every change.

2 values: Cash in bank ($) and Monthly net burn ($). Nothing else is required — no account, no file upload.

With Cash in bank = $500,000.00 and Monthly net burn = $40,000.00, the calculator returns Runway (months) = 12.5 and Runway (years) = 1.042. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

Reporting to an investor or a board: what recurring revenue really is this month, what churn is costing, and how long it takes to earn back an acquisition.

Counting annual contracts at their full value in the month they are signed. MRR is the monthly-equivalent figure; booking a year of revenue in one month makes growth look like a step change that then reverses.

This one returns Runway (months) and Runway (years); the Churn rate calculator returns Churn rate and Retention rate. That is the whole difference — open the one whose figure you need.

CAC payback period calculator is the closest one after this: Find how many months it takes to recover the cost of acquiring a customer.

MRR & ARR calculator and LTV calculator — they come up in the same task often enough to be worth a second tab.

These definitions come from how subscription businesses report, not from an accounting standard — churn in particular is defined half a dozen ways, so state which one you used alongside the number.