SaaS Metrics: The 12 Numbers That Run Every Software Company, Mapped
Every SaaS metric answers one of four questions: how big, how fast, what does a customer cost, and do they stay. Here's the whole stack in one map, with a real disclosed number attached to every definition — and links to the deep dives.
On this page
SaaS metrics look like a zoo until you notice they all answer one of four questions: How big are we? How fast are we growing? What does a customer cost and earn? Do customers stay? Twelve numbers cover the whole conversation — every board meeting, every fundraise, every episode in our interview archive. Here’s the map, each metric defined in a breath and pinned to a number a real founder disclosed.
How big: the revenue stack
The normalized monthly value of active subscriptions; the operator’s heartbeat. Webflow at $1.2M/month in 2018; SafetyWing at $2M/month in 2023. Deep dive.
The same machine annualized, honest only when the month you multiplied is representative. When it lies.
What accountants recognize; the number that reconciles the other two at year-end.
How fast: growth and its price
The percentage change, YoY for honesty, MoM for flattery. Disclosed range: Webflow’s durable 100% three years running to 1Mind’s early-cohort 600%. Benchmarks by stage.
Growth rate plus profit margin should clear 40; the exchange rate between speed and burn. GitLab’s Sid Sijbrandij used it as his burn ceiling at 140% growth.
New ARR per dollar of sales and marketing. GitLab targeted CAC recovery “on the first invoice” (magic number ~1.0); Workboard ran $2.50 of new revenue per S&M dollar.
What a customer costs and earns
A contract’s annualized value; it dictates your entire go-to-market, from Webflow’s $480 self-serve to Workboard’s $125K field motion. Deep dive.
Revenue per user or account; the mix-shift detector. Dropbox’s whole company is 18M payers × $139. When it lies.
Fully loaded acquisition cost. Disclosed range: $85 (Webflow) to $17–18K (Workboard). Benchmarks by motion.
Months to recover CAC; Outreach’s Manny Medina ran every segment against gross-margin-adjusted payback under 20 months, and the gross-margin adjustment is the part everyone skips.
LTV — what a customer is worth over their whole life — is the most manipulable number on this list. Deep dive.
Do they stay: the retention stack
Dollars lost to cancellations and downgrades, the leak measured before expansion patches it. Disclosed: single digits (Showpad) to 14% (UserTesting) annually.
Last year’s cohort’s revenue today, expansion included; the line between compounding (100%+) and refilling. Disclosed range: ~100% (Webflow) → 120s (Salesloft, Algolia) → 140s (Outreach, Workboard) → GitLab’s outlier 150–175%. Formulas and benchmarks.
How the twelve fit together
The stack is a pipeline, not a list: ACV × customers gives MRR; MRR’s trend gives growth; CAC against ACV and margin gives payback; churn and expansion give NRR; NRR compounds (or erodes) everything upstream; and Rule of 40 prices the whole trade. Which is why experienced buyers of SaaS businesses ask for the metrics in exactly that order — and why a company that quotes a gorgeous number from one layer while hiding its neighbor (140% NRR over 25% gross churn, say, or a run rate annualized off a spike) is telling you where to look. The founders quoted across this series earned their citations the same way: by disclosing the neighbors too.
One habit beats any dashboard: pick the four numbers that answer the four questions for your model — typically MRR, YoY growth, gross-margin-adjusted payback, and NRR — and review them monthly against the same definitions. Everything else on this page is a diagnostic to pull when one of the four moves.
See all twelve, disclosed by thousands of SaaS companies, at getlatka.com/saas-companies.
SourcesFounder disclosures from the GetLatka interview archive; the GetLatka company dataset.