Runway calculator
Monthly burn and the month you run out of cash, with hires and revenue growth moving the date as you change them.
Monthly costs
Gross burn on these inputs is $120,000 a month before any hire below.
Hires you have not made yet
Optional. Add a role with its annual cost and the month it starts to see what the plan does to the date the cash runs out.
Runway
Cash never goes negative over a 50-year projection on these numbers.
Cash hits zero
Revenue covers the outgoings before the balance runs down.
Net monthly burn
Today's costs minus today's revenue, before growth.
Break-even
The first month revenue covers that month's costs.
Runway is effectively unlimited on these inputs. Revenue covers the outgoings, so there is no date to print.
That is a statement about the numbers above, not a forecast. Drop growth to zero, or add the hires you are planning, and see whether it still holds.
Month by month
The next 24 months. Cash in is revenue plus any raise that lands that month; cash out is burn plus the hires that have started.
| Month | Cash in | Cash out | Net | Closing balance | |
|---|---|---|---|---|---|
| Month 1 | $40,000 | $120,000 | −$80,000 | $670,000 | |
| Month 2 | $43,200 | $120,000 | −$76,800 | $593,200 | |
| Month 3 | $46,656 | $120,000 | −$73,344 | $519,856 | |
| Month 4 | $50,388 | $120,000 | −$69,612 | $450,244 | |
| Month 5 | $54,420 | $120,000 | −$65,580 | $384,664 | |
| Month 6 | $58,773 | $120,000 | −$61,227 | $323,437 | |
| Month 7 | $63,475 | $120,000 | −$56,525 | $266,912 | |
| Month 8 | $68,553 | $120,000 | −$51,447 | $215,465 | |
| Month 9 | $74,037 | $120,000 | −$45,963 | $169,502 | |
| Month 10 | $79,960 | $120,000 | −$40,040 | $129,462 | |
| Month 11 | $86,357 | $120,000 | −$33,643 | $95,819 | |
| Month 12 | $93,266 | $120,000 | −$26,734 | $69,085 | |
| Month 13 | $100,727 | $120,000 | −$19,273 | $49,812 | |
| Month 14 | $108,785 | $120,000 | −$11,215 | $38,597 | |
| Month 15 | $117,488 | $120,000 | −$2,512 | $36,085 | |
| Month 16 | $126,887 | $120,000 | $6,887 | $42,971 | |
| Month 17 | $137,038 | $120,000 | $17,038 | $60,009 | |
| Month 18 | $148,001 | $120,000 | $28,001 | $88,010 | |
| Month 19 | $159,841 | $120,000 | $39,841 | $127,851 | |
| Month 20 | $172,628 | $120,000 | $52,628 | $180,479 | |
| Month 21 | $186,438 | $120,000 | $66,438 | $246,917 | |
| Month 22 | $201,353 | $120,000 | $81,353 | $328,270 | |
| Month 23 | $217,462 | $120,000 | $97,462 | $425,732 | |
| Month 24 | $234,859 | $120,000 | $114,859 | $540,590 |
What these numbers assume
- Month 1 uses the revenue you entered as it stands. Growth compounds from month 2, at the same rate every month. Real revenue does not behave like that, so treat a long projection as a shape rather than a forecast.
- Costs are flat. A hire adds its annual cost divided by twelve from the month it starts and never changes after that, and nothing here models raises, bonuses, payroll taxes beyond what you type into the annual cost, or a cost that scales with revenue.
- A raise lands whole, in cash, in the month you pick. In practice it lands after a close, often in tranches, and the months of diligence before it burn cash like any other month.
- Runway counts the months until the closing balance first goes below zero, including the part-month the last of the cash stretches to. If revenue covers the outgoings the page says so instead of printing a number that means nothing.
- Everything is USD and nothing is converted. If you hold cash or collect revenue in another currency, the FX move between now and the date you care about is a real risk this page does not model.
- This is a planning tool, not financial, tax or legal advice. Nothing is sent anywhere: the maths runs in your browser and no input leaves it.
Every figure on this page is arithmetic on the numbers you type: no benchmarks, no market data and nothing fetched. The calculation runs in your browser and no input leaves it. Plaitr is a financial technology company, not a bank, and this is a planning tool, not financial, tax or legal advice.
Questions
- How is runway calculated here?
- The projection runs month by month. Each month adds that month's revenue and any raise that lands, subtracts burn plus the annual cost of any hire that has started divided by twelve, and carries the closing balance forward. Runway is the number of months until that closing balance first goes below zero, including the part-month the last of the cash stretches to.
- What is the difference between gross burn and net burn?
- Gross burn is everything going out in a month. Net burn is gross burn minus revenue: the amount the bank balance actually falls by. A company spending 120,000 a month with 40,000 of revenue has a gross burn of 120,000 and a net burn of 80,000, and it is net burn that sets the runway.
- Why does it say runway is unlimited instead of showing a number?
- Because when revenue covers the outgoings the balance never falls, so there is no date to print and any large number would be made up. The page says so plainly. It is a statement about the inputs, not a forecast. Set growth to zero or add the hires you are planning and check whether it still holds.
- Should a plan assume the raise arrives?
- Look at both. Set the raise to zero to see the runway you actually control, then add it back to see the version that depends on someone else signing. The gap between those two dates is the real question, because the diligence months before a close burn cash like any other month and the money often lands in tranches.
- How much runway is enough before raising again?
- There is no benchmark on this page because an honest one does not exist: it depends on the round, the market and how long your own process has taken before. What the projection is good for is working backwards: pick the month you want to start raising, and see what burn and growth have to be for the cash to still be there.
- Does anything I type get sent anywhere?
- No. The whole calculation runs in your browser. Nothing is submitted, stored or logged, there is no account, and closing the tab discards it.
- Does currency affect the answer?
- It can, and this page does not model it. Every figure is treated as one currency with no conversion. If you hold cash in USD and pay a team in another currency, or collect revenue abroad, the FX move between now and your zero date is a real cost that does not appear here, and cross-border payment fees and spreads sit inside your burn whether or not you have itemised them.
Run the payment, not just the maths
Plaitr runs bank rails and stablecoin rails from one account, so you can pick whichever is cheaper per payment and keep the books reconciled either way.
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