Burn Multiple Calculator — SaaS Sacks Zones & Benchmark

What the SaaS burn multiple actually measures

At its core, the burn multiple is a one-line answer to a single question: how many dollars of cash did you burn for every dollar of new recurring revenue you produced? David Sacks introduced the metric in an April 2020 Craft Ventures essay precisely because the dominant efficiency screen at the time — raw burn rate — was missing the denominator. Two companies burning $1M a quarter look identical on a runway chart, but if one is producing $1.5M of net new ARR while the other is producing $200K, they are not the same business.

The reason burn multiple has stuck post-2022 is that it changes the conversation from "are you alive?" to "is the cash conversion working?" A 1.5× burn multiple at Series A is a healthy company that can afford to keep spending; a 3× burn multiple is a company that has to either grow into its cost base or restructure. The number itself is a single ratio, but the framing shifts how a board reasons about runway and the next round.

Where the metric lands hardest is in board prep. A founder who walks into a quarterly review with a burn multiple slide — broken down quarter over quarter, with a Sacks zone label — is having a different meeting from one who walks in with a burn-rate chart alone. The visualization above turns the math into a conversion-machine view: cash flowing in on the left, net new ARR flowing out on the right, the ratio in the middle.

The burn multiple formula in plain English

The formula has only two inputs and one division:

Worked example: Starting ARR $3.0M, Ending ARR $3.75M, Cash Out $1.2M, Cash In $0.6M. Net New ARR = $750K. Net Burn = $600K. Burn Multiple = $600K ÷ $750K = 0.80. That sits in the Sacks Amazing band, and the dollar-reveal sentence becomes: every $1 of burn produced $1.25 of new ARR.

David Sacks's five zones — Amazing, Great, OK, Suspect, Bad

Sacks didn't set out to invent a grading rubric — he was making a point about which companies survived 2008 and which didn't. The zones are how that essay shows up in board decks four years later:

The bands are cut-points where the boardroom conversation changes, not arbitrary lines. Below 1.0, every dollar of burn returns more than a dollar of new ARR — most VCs read that as the company underspending on growth. Between 2.0 and 3.0, you start hearing the word "efficiency" in every meeting. Above 3.0, the next conversation is restructuring, a bridge round, or a hard pivot.

How to calculate net new ARR for the denominator

The cleanest definition: Net New ARR is the change in your annualized recurring revenue book between the first and last day of the period. If your ARR bridge tells you that you started the quarter at $3.0M and ended at $3.75M, your Net New ARR is $750K — there is no further math.

Underneath, that single number stitches together four movements: New ARR (net-new logos signed in the period), Expansion ARR (upsells, seat adds, plan upgrades on existing accounts), minus Contraction ARR (downgrades, seat removes), minus Churn ARR (full cancellations). The sign on each piece matters because mistaking ARR contraction for new-logo softness leads to the wrong remediation plan.

A common trap: using bookings or new TCV instead of ARR. A multi-year deal worth $300K with $100K of year-one ARR shows up as $100K in Net New ARR, not $300K. Using the bookings figure makes the burn multiple look better than it is — exactly the kind of number an experienced VC will catch in diligence.

Burn multiple benchmarks across stages

Across public commentary from Sacks, Bessemer Venture Partners, SaaS Capital, and Scale Venture Partners, the typical ranges shake out roughly as follows. These are approximate ranges drawn from blended industry sources — no single firm publishes the whole table:

The shape is consistent: medians improve as ARR scale rises because fixed costs (G&A, eng, security) stay roughly flat while ARR grows. A pre-seed company at 3× isn't in trouble — that's the cohort median. A Series C company at 3× is a different conversation entirely. The benchmark scatter inside the calculator places your dot against 80 synthetic peers seeded from these distributions so the comparison is visual.

What Series A investors want to see

For Series A specifically, the typical target band on a single quarter is between roughly 1.1 and 2.5, with a median near 1.8. Within that, three things show up in nearly every diligence conversation:

First, trajectory beats absolute number. A company going 2.6 → 2.0 → 1.6 over three quarters is more interesting than a company sitting at a flat 1.7. The 8-quarter trajectory chart inside the calculator detects this with linear regression — the "Improving" / "Flat" / "Decaying" pill flips on a slope threshold of ±0.05 BM per quarter.

Second, expansion share matters. A burn multiple of 1.5 made up of 70% new-logo ARR is structurally more expensive than a burn multiple of 1.5 made up of 50% expansion ARR, because expansion sales are cheaper. The Capital Efficiency Report Card weights expansion share at 10% of the overall grade for exactly this reason.

Third, runway at current BM is the cash-out date stress test. The calculator divides current cash balance by net burn to project months of runway if today's efficiency holds. A 1.8 burn multiple with 22 months of runway is a different fundraise than the same 1.8 with 9 months of runway.

Burn multiple vs Rule of 40 — two lenses, different audiences

Rule of 40 — Growth Rate % + Profit Margin % ≥ 40 — is the standard public-comparable health check. It works at scale because both terms are denominated in revenue, so a $50M-ARR company growing 60% with a -20% margin scores 40, identical to a $500M-ARR company growing 20% at 20% margin. Burn multiple does something different: it ignores margin entirely and asks how efficiently your cash is buying recurring revenue.

The two metrics fit different rooms. Rule of 40 dominates public-investor conversations and late-stage growth equity meetings — anywhere the audience cares about EBITDA-equivalent profitability. Burn multiple dominates Series A and Series B meetings because those rounds expect negative margin and need a single ratio that judges the spend. A high-growth, deeply-negative-margin company at 65% growth and -35% margin scores Rule of 40 = 30 (a yellow flag publicly) but might run a 1.2 burn multiple (Sacks "Great" territory). The metrics disagree on purpose.

Burn multiple vs capital efficiency ratio — terminology cleanup

These get used interchangeably in casual conversation, and they shouldn't be. Capital efficiency is an umbrella that includes total-capital-raised-to-ARR, the LP-style cash-on-cash return on invested capital, lifetime CAC payback, and net dollar retention. It's a category. Burn multiple is one specific ratio inside that category — and its key property is that it's computable from a single quarter without any cohort assumptions.

When a VC asks "what's your capital efficiency?" in a meeting, what they're usually shorthand-asking for is the burn multiple plus payback. In a written memo, the two get separated again. The clean way to handle it: lead with the burn multiple (single quarter), then bring out the cumulative-capital-raised-to-ARR ratio if asked.

The "Amazing" burn multiple — what PLG companies do differently

A burn multiple under 1.0 — "Amazing" — is rare in sales-led SaaS but almost expected from best-in-class product-led growth companies. The structural reason: PLG defers most of the customer-acquisition cost to product engineering and self-serve onboarding instead of a sales team, so the cost basis per dollar of new ARR is fundamentally lower. A PLG company shipping a Series A might run a 0.6 burn multiple while a comparable enterprise-sales SaaS at the same ARR runs 2.2.

The flip side matters too: when a PLG company starts adding sales-led motion in the Series B/C zone, the burn multiple often degrades for two-to-four quarters before re-stabilizing. That's the cost of building a new go-to-market layer, and it's the kind of context that the trajectory chart catches but a single-quarter screenshot misses.

How VCs use the burn multiple in 2026 diligence

Post-2022, burn multiple replaced naive burn-rate screens at most growth-stage funds. The metric is asked for explicitly in board pre-reads, in management Q&A, and at the partner-meeting stage. In a typical Series A or B diligence pack today, you'll see four asks together:

• The current quarter's burn multiple
• The trailing 4–8 quarters as a trajectory chart
• The split between new-logo ARR and expansion ARR (so the denominator is broken down)
• Months of runway at the current burn rate

The shift away from raw burn rate has been quiet but complete — Sacks-era framing is the default. The calculator above produces all four numbers, the OG-format export is sized for a board slide, and the CSV export gives the trajectory series for paste-in.

How to improve a bad burn multiple without headcount cuts

Layoffs are the loud lever, but they're not the only one. Three plays can move a Suspect or Bad burn multiple in a single quarter without touching headcount:

Shift the growth mix toward expansion. A dollar of expansion ARR typically costs less than a dollar of new-logo ARR — the customer is already onboarded, the integration is in place, the buyer relationship is warm. If you can move expansion from 20% of net new ARR to 40% over a quarter, the same Net New ARR comes with a smaller numerator pressure on the burn multiple.

Audit non-headcount spend. Unused SaaS, vendor consolidation, ad-spend pruning, and freezes on travel and events routinely produce double-digit cuts in a single quarter without changing the cap table or the org chart. The What-If simulator in the calculator lets you preview the impact of a specific burn cut on the BM number before committing.

Pull cash forward through annual prepays. Switching customers from monthly to annual prepay billing improves Cash In without changing ARR — the burn multiple drops because the denominator (Net New ARR) holds while the numerator (Net Burn) shrinks via cash collected. This is the cleanest of the three because it changes nothing strategic; it just rearranges the timing of cash that was already due.

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