The SaaS Metrics That Actually Matter
Every SaaS company tracks dozens of metrics. Most of them are vanity. The ones that determine whether you survive or die fit on a single dashboard: MRR, churn, LTV, CAC, Quick Ratio, and Net Dollar Retention. These six numbers tell you if your business is growing efficiently, retaining customers, and spending acquisition dollars wisely.
MRR (Monthly Recurring Revenue) is your heartbeat. ARR is just MRR times 12—useful for annual planning and valuation conversations, but MRR is what you manage week to week. Net New MRR breaks down into three components: new MRR from first-time customers, expansion MRR from upgrades, and churned MRR from cancellations. If expansion exceeds churn, you have negative churn—the holy grail of SaaS.
SaaS Benchmark Table: What Good Looks Like
| Metric | Poor | Okay | Good | Elite |
|---|---|---|---|---|
| Monthly Revenue Churn | >5% | 3–5% | 1–3% | <1% |
| Customer Churn | >7% | 5–7% | 3–5% | <3% |
| LTV:CAC Ratio | <1:1 | 1–3:1 | 3–5:1 | >5:1 |
| CAC Payback | >24 mo | 18–24 mo | 12–18 mo | <12 mo |
| Quick Ratio | <1 | 1–2 | 2–4 | >4 |
| Net Dollar Retention | <90% | 90–100% | 100–120% | >120% |
Sources: OpenView Partners 2025 SaaS Benchmarks, Bessemer Cloud Index, ChartMogul SaaS Benchmarks Report. Ranges reflect B2B SaaS with $1M+ ARR.
Quick Ratio: The Single Number That Predicts Growth
Quick Ratio = (New MRR + Expansion MRR) / Churned MRR. It measures how efficiently you grow relative to what you lose. A Quick Ratio of 4 means for every dollar churned, you add four dollars. Mamoon Hamid at Kleiner Perkins popularized this metric, calling a ratio above 4 the mark of a “healthy” SaaS company.
Below 1, you are shrinking. Between 1 and 2, growth is fragile—a bad month of churn erases your gains. Between 2 and 4, you are growing but need to watch efficiency. Above 4, you have strong momentum and can afford to invest aggressively in acquisition. The best public SaaS companies at IPO had Quick Ratios between 3.5 and 10.
Quick Ratio matters more than raw growth rate because it accounts for leakage. A company growing MRR 15% month-over-month with a Quick Ratio of 1.5 is in a much more precarious position than one growing 8% with a Quick Ratio of 6. The first company is running on a treadmill; the second is compounding.
Net Dollar Retention: Why It Matters More Than New Sales
Net Dollar Retention (NDR) answers a simple question: if you stopped acquiring new customers today, would your existing revenue grow or shrink? NDR = (Starting MRR + Expansion MRR − Churned MRR) / Starting MRR, expressed as a percentage.
NDR above 100% means your existing customers spend more over time than you lose to churn. This is “negative net churn”—your installed base grows on its own. The best SaaS companies operate at 120–150% NDR. Snowflake hit 158% NDR at IPO. Twilio sustained 140%+ for years. These companies could fire their entire sales team and still grow revenue.
NDR below 90% is a red flag. It means you are losing 10%+ of your existing revenue every month, and new customer acquisition has to fill that hole before you see any growth. Investors look at NDR as the single best predictor of long-term SaaS value because it captures product-market fit, pricing power, and customer satisfaction in one number.
LTV:CAC — The Unit Economics Test
LTV (Lifetime Value) divided by CAC (Customer Acquisition Cost) tells you whether each customer is worth the money you spent to get them. The industry benchmark is 3:1—for every dollar you spend acquiring a customer, you should earn at least three dollars over their lifetime. Below 1:1, you are literally paying people to lose money on you.
The formula: LTV = ARPU × Gross Margin / Monthly Churn Rate. CAC is your total sales and marketing spend divided by new customers acquired. A 3:1 ratio with a 12-month payback period means you break even in year one and profit for the remaining customer lifetime.
Be cautious of LTV:CAC ratios above 5:1. While they look great on a slide deck, they often mean you are under-investing in growth. You could be acquiring customers faster with more spend and still maintain healthy unit economics. The sweet spot for most growth-stage SaaS is 3:1 to 5:1.
To estimate how long your cash will last at your current burn rate, use the startup runway calculator. For a broader view of what your SaaS business might be worth, try the business valuation calculator.