B2B PLG Product-Qualified-Lead Conversion 2027 Calculator

The PLG Funnel Stages

PLG funnel: Free signup → Activated user → PQL (hit value moment) → Paid conversion → Expansion. Each stage has its own conversion benchmark: signups to activated 30-50%, activated to PQL 20-40%, PQL to paid 20-40%. Total signup-to-paid conversion is typically 2-5% — much lower than sales-led but at vastly higher volume and lower CAC. The "value moment" or "aha" is critical — Slack's 2000 messages sent, Dropbox's first folder share.

PLG CAC vs Sales-Led CAC

Sales-led B2B CAC typically $5,000-$25,000 per customer (SDR + AE compensation + tooling). PLG CAC typically $50-$500 per paid customer (mostly marketing, some onboarding support). The CAC arbitrage enables PLG companies to acquire at 10-50x the rate at 1/20th the cost — making the smaller ACV viable. The key constraint: ARR per paid customer is often 1/10th of sales-led, so volume must compensate.

NRR Is Everything in PLG

Because PLG starts customers at small ACVs (often $1k-5k), expansion via seat additions or tier upgrades is where the value lives. Top PLG companies hit 130-180% NRR through aggressive expansion. Notion, Figma, Datadog all built revenue compounding by landing small then growing 5-20x per cohort over 3-5 years. Without strong NRR, PLG is just low-end discount SaaS.

When PLG Doesn't Work

PLG fails when (a) product requires heavy implementation or training (enterprise security, HR, ERP), (b) buyer is not the user (C-suite procurement), (c) compliance/regulatory friction prevents self-serve. In those segments, the SDR-driven sales-led model with $5k+ CAC is more efficient than fighting upstream against natural buying friction. Hybrid (PLG + sales-led for enterprise) is the modern norm.

Sources: openview.com SaaS metrics, bessemer.com cloud benchmarks, salesforce.com benchmarks. Last updated: May 2026.