Shafaat Choyon.

Cash runway and burn calculator

How long will the cash last, and what changes it? See your net burn, your runway at today’s revenue, what monthly revenue growth does to it, and the month the cash runs out. For a new business, a new unit or a turnaround. Load an example from 15 industries, nine of them where I have worked.

Built from my own work: Digitizing a multi-entity clinical group

LinkedInWhatsApp

Net burn a month-
Runway at today’s revenue-
With revenue growth-
Cash runs out-

FormulaNet burn = costs − revenue · runway = cash ÷ net burn · with growth, revenue rises each month until it covers costs or the cash runs out

What to do next

    Show the working, step by step

      Where I used this

      As COO at Laser Treat, with finance in my remit, I cut about $0.5M a year from operating costs.

      Read the case: Digitizing a multi-entity clinical group →

      Everything is calculated in your browser. Nothing you type is sent or stored.

      Three ways to extend runway

      • Cut costs that do not drive revenue. Start with tools, rent and contracts nobody would miss, before people.
      • Bring cash in sooner. Collect what customers owe faster, and ask for deposits or payment up front where you can.
      • Grow through channels that pay back fast. Put spend only where it returns inside your runway. Check each one with the CAC calculator.

      Get new free tools by email. One short note when a new tool or essay goes live. No spam, unsubscribe any time.

      Cash running out faster than the plan?

      Bring your numbers to a free 30-minute call, and I will help you find the costs to cut and the revenue to chase first.

      Book a free call

      Questions

      What is burn rate?

      Gross burn is everything you spend in a month. Net burn is what you spend minus what you earn: the amount your cash actually falls each month.

      How do you calculate runway?

      Divide the cash you have by your monthly net burn. 600,000 in the bank with a net burn of 50,000 a month is 12 months of runway.

      How much runway is enough?

      Many operators aim for 12 to 18 months. Whatever your target, make cost or funding decisions while you still have at least six months left.

      More free tools

      See all 48 free tools →