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Founders and operators

When does the money run out?

Months of cash left, the raise or cut needed for a clean year, and how deep the hole gets - with growth doing part of the work.

Your numbers

Starting numbers: A seed-stage software company of about a dozen people, with revenue growing month on month but not yet covering costs. Change anything below.

Total cash out per month: payroll, tools, rent, everything below gross profit.

Revenue collected in a typical month today, before any growth.

Compounding month-on-month growth assumed across the period ahead.

What is actually in the account today, before anything already committed.

Money promised but not yet paid - a deposit, a settlement, a big purchase.

What this also assumes (3)

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Months of cash left

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Cash needed for a clean year
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Lowest the balance gets
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How it's computed

About this calculator

Runway is spendable cash divided by average net monthly burn. Spendable cash is what is actually in the bank minus one-off spend already committed. Net burn is operating costs minus gross profit - and because revenue grows, the model averages gross profit across the horizon instead of freezing today's number. That makes this a truthful runway, not the flattering one: it also shows how deep the cash hole gets and what it takes to buy a full year of life. Pull the levers to match your own costs, revenue, and growth, and watch the runway stretch or snap. The chain above shows every step of the calculation - nothing is hidden. When the numbers look like yours, save the model to stress-test hiring plans and raise timing, and share it with your team or board.

Related calculators

Burn MultipleHow much cash you burn for every dollar of net new ARR - the efficiency number investors check first.CAC & RunwayStress-test your runway against rising acquisition costs - see how fast the cash goes when each customer costs more to win.Default AliveWhether the funnel you already have, held flat, plateaus above your cost base - or never gets there.Headcount AffordabilityThe headcount your revenue actually supports, and the revenue you need before the next hire is affordable.Raise PlanModel a funding round end to end - cash, runway, dilution, and what you still own when it closes.IRR & MOICWhat a derated exit multiple does to IRR and MOIC - and the multiple the case needs to clear the hurdle.Unit EconomicsLTV against CAC on a live model - see how churn quietly destroys lifetime value and flips unit economics red.

Every number on this page is computed live by the LeverMap engine.