The 7 PLG Metrics That Actually Matter
Most teams track too many metrics. Here are the seven that consistently predict product-led growth success — and how to instrument them.
Product-led growth lives and dies by measurement. But the dashboard sprawl at most companies creates more noise than signal. After working with dozens of PLG teams, I've found that seven metrics consistently separate the teams that scale from the ones that stall.
1. Time to First Value (TTFV)
This is the single most diagnostic metric for your onboarding experience. It measures the elapsed time between signup and the moment a user experiences the core value proposition. For Slack, it's sending a message in a channel. For Figma, it's creating a design with a collaborator.
2. Product-Qualified Lead (PQL) Rate
The percentage of free users who reach your PQL threshold — the behavioral signal that correlates with conversion. Unlike MQLs, PQLs are based on actual product usage, making them dramatically more predictive.
3. Natural Rate of Growth (NRG)
Coined by OpenView, NRG measures what percentage of your recurring revenue comes from organic, product-driven channels. A high NRG means your product is doing the selling. Calculate it as: Annual Growth Rate × % Organic Signups × % ARR from Products.
4. Expansion Revenue Rate
In PLG, expansion is king. This measures revenue growth from existing customers through upsells, cross-sells, and usage-based pricing expansion. Best-in-class PLG companies see 130%+ net dollar retention.
5. Activation Rate
The percentage of new signups who complete your defined activation milestone within a set time window. This is distinct from TTFV — activation rate is a funnel metric, while TTFV is a speed metric.
6. Viral Coefficient (K-factor)
How many new users each existing user brings in. A K-factor above 0.5 means your product is meaningfully self-distributing. Above 1.0 means true viral growth (rare but powerful).
7. Revenue Per Employee
The ultimate efficiency metric for PLG. Because product-led companies should require fewer salespeople per dollar of revenue, RPE should trend higher over time. Benchmark against peers in your stage and vertical.
The key is not just tracking these metrics but building feedback loops between them. When your activation rate improves, it should flow through to PQL rate, which flows to conversion, which improves NRG. That compounding effect is the magic of product-led growth.