How do you calculate burn multiple?

Divide net cash burned by net new ARR over the same period. Net burn is cash out minus cash in; net new ARR is new plus expansion revenue minus churn and contraction, so a leaking customer base drags the ratio down.

What is a good burn multiple?

Lower is better, but there is no universal pass/fail number — the right level depends on stage, gross margin, and market. Read it as a trend against retention rather than against a fixed folklore threshold.

How is burn multiple different from burn rate?

Burn rate is simply how much cash you spend per month; it ignores growth entirely. Burn multiple ties that spend to the net new recurring revenue it produced, so it measures efficiency rather than just consumption.

What is burn multiple? A practical definition

Glossary · Glossary & Definitions · 4 min read · last verified 2026-07-19

Reviewed before publication Editorial board Independent commercial review

In shortBurn multiple divides net cash burned by net new ARR over a period, measuring how many dollars a company spends to add one dollar of recurring revenue. Lower is better; read it as a trend beside retention.

Burn multiple is a capital-efficiency metric: it divides net cash burned by net new ARR added over the same period, answering how many dollars a company spends to generate one dollar of new recurring revenue.

The definition

Burn multiple equals net burn divided by net new ARR. If a company burns two dollars of cash for every one dollar of net new annual recurring revenue it adds in a period, its burn multiple is 2. The metric was popularized by investor David Sacks as a single number that captures growth and the cost of that growth in one ratio. Lower is better: a low multiple means the business converts cash into durable revenue efficiently; a high one means growth is expensive and fragile.

Two details carry most of the weight. "Net burn" is cash out minus cash in — the real change in the bank balance, not a bookkeeping abstraction. "Net new ARR" is new plus expansion revenue minus churn and contraction, so a company leaking existing customers has to run harder just to stand still.

Why efficiency metrics rose to power

For a stretch, the dominant question asked of a startup was simply how fast are you growing? Burn was treated as a footnote — capital was cheap and abundant, so trading dollars for growth looked rational. When capital got expensive, the question changed to how much did that growth cost? Burn multiple answers exactly that in one figure, which is why it moved from a niche partner metric to a line every board now reviews.

Its appeal is that it resists gaming. You can flatter a growth rate with discounts, or flatter margins by starving the pipeline. Burn multiple sees through both, because it holds cash consumed and durable revenue added in the same frame.

Reading a burn multiple in context — without folklore thresholds

A burn multiple is only meaningful next to its context. The originator offered rough illustrative bands, but treating any specific number as a pass/fail line is a mistake — the "right" multiple depends on stage, market, and gross margin. An early company building hard infrastructure will read very differently from a lean tool bolted onto an existing workflow.

Read it as a trend, not a verdict. A multiple improving quarter over quarter tells you the engine is getting more efficient; a stable multiple held through a demand shock can be a stronger signal than a low one riding a tailwind. And always pair it with retention — a flattering multiple built on customers who will churn next year is a mirage.

The levers that actually move it

Only two things change a burn multiple: the cash you spend, or the net new ARR you keep. That splits into concrete levers:

Gross margin. Every point of margin means more of each new dollar survives to fund the next one.
Retention and expansion. Because the denominator is net, churn is a tax on the whole ratio. Companies with strong net revenue retention improve their burn multiple without adding a single new logo.
Sales efficiency. Shorter cycles and higher win rates lower the cash required per dollar of ARR.
Pricing and packaging. Charging closer to the value delivered lifts the denominator with no added burn.

Burn multiple and market-position spend

A meaningful slice of burn is spent to be found and believed — demand generation, category presence, and the slow work of becoming the name a buyer trusts. That spend used to be nearly unobservable: you funded it and hoped. In AI-era buyer research it is becoming measurable.

When a buyer asks an assistant "who are the serious vendors for this," the engine answers from public evidence. If those surfaces are blank, stale, or wrong about you, buyers self-disqualify before a rep ever speaks — and every dollar downstream in the funnel works harder for less. That is burn-multiple erosion you cannot see in a CRM. Measuring how AI assistants and research surfaces describe you turns a portion of market-position spend from an act of faith into something you can test: did the evidence move after you invested? For most teams, that question is worth answering continuously rather than once a year.

What to do with this

Compute burn multiple on net new ARR, not gross new bookings — include churn and contraction, or you will flatter yourself.
Track it as a trend line beside retention; a single quarter is noise, and a low multiple over a churning base is a warning, not a win.
Before cutting demand generation to improve the ratio, check whether AI research surfaces already carry your evidence — cutting the spend that builds that evidence can quietly raise your true cost of acquisition.
Attribute a portion of "market-position" burn to an observable outcome: whether the public and AI-surfaced record of your company actually improved.