PLG Pricing Metrics: Unlocking the Value of Free-to-Paid Conversions and Expansion Revenue

May 20, 2025

In today's competitive SaaS landscape, Product-Led Growth (PLG) has emerged as a dominant go-to-market strategy, with companies like Slack, Dropbox, and Zoom demonstrating its transformative power. At the heart of successful PLG strategies lies a sophisticated approach to pricing metrics that enables companies to effectively monetize their user base through free-to-paid conversions and expansion revenue. For executives navigating this landscape, understanding these metrics isn't just about tracking performance—it's about unlocking sustainable growth and maximizing customer lifetime value.

The PLG Pricing Foundation: Beyond Traditional Models

Product-Led Growth fundamentally shifts how companies approach their pricing strategy. Unlike traditional sales-led models where pricing discussions happen early in the customer journey, PLG companies allow users to experience value first, with monetization following organically as users deepen their engagement.

According to OpenView Partners' 2023 Product Benchmarks Report, PLG companies achieve 2-3x higher revenue growth rates compared to their sales-led counterparts, with significantly lower customer acquisition costs. This efficiency stems from a pricing structure that aligns perfectly with customer value realization.

The Value Metric: Cornerstone of PLG Pricing

The most successful PLG companies build their pricing around a value metric—a unit of measurement that scales proportionally with the value customers receive. Examples include:

  • Slack: Per active user
  • Airtable: Records per base
  • Datadog: Hosts monitored
  • Calendly: Number of event types

Patrick Campbell, founder of ProfitWell (acquired by Paddle), notes that "companies using value metrics grow 2x faster because they're able to capture more revenue as customers receive more value."

Key Metrics for Free-to-Paid Conversions

Tracking the journey from free user to paying customer requires a precise set of metrics that reveal both the rate and efficiency of conversions.

1. Conversion Rate by Cohort

Rather than looking at aggregate conversion rates, segment users by acquisition channel, time period, or feature usage. This granular view reveals which user segments convert most effectively.

According to Bessemer Venture Partners, top-performing PLG companies achieve free-to-paid conversion rates between 2-5% for B2C applications and 8-15% for B2B applications. However, these benchmarks vary significantly by industry and product complexity.

2. Time-to-Conversion

The velocity of conversion provides critical insights into your product's ability to demonstrate value quickly.

Key considerations:

  • Median days from signup to paid conversion
  • Conversion rate at 1, 7, 30, and 90 days
  • Activity patterns that precede conversion

Amplitude's Product Intelligence Report found that companies with the fastest time-to-value see conversions happening 30-40% sooner than industry averages.

3. Activation Rate to Conversion Correlation

Before users convert to paid plans, they typically reach specific activation milestones—moments where they experience the core value of your product.

Todd Olson, CEO of Pendo, emphasizes that "understanding which features drive activation is the key to optimizing conversion rates." Their research shows that users who reach activation milestones convert at 5x the rate of those who don't.

Measuring and Optimizing Expansion Revenue

While acquiring paid users marks a critical milestone, the true financial success of PLG comes through expansion revenue—increasing revenue from existing customers.

1. Net Revenue Retention (NRR)

NRR measures the percentage of revenue retained from existing customers over time, including expansions, contractions, and churn.

According to Gainsight's 2023 Customer Success Industry Report, best-in-class PLG companies achieve NRR rates above 130%, meaning they grow their revenue from existing customers by 30% annually without adding new ones.

2. Expansion MRR Rate

This metric tracks the monthly recurring revenue generated from existing customers through upsells, cross-sells, and usage increases.

Kyle Poyar, Partner at OpenView, notes that "elite PLG companies generate 30-50% of their new ARR from expansion, compared to 10-20% for traditional SaaS businesses."

3. Feature Adoption to Expansion Correlation

Understanding which features drive expansions helps product teams prioritize development efforts.

Analysis should include:

  • Feature adoption rates prior to expansion events
  • Time between specific feature usage and expansion
  • User personas most likely to expand after feature adoption

Implementing a Decision Framework for PLG Pricing Optimization

For executives looking to enhance their PLG pricing strategy, implementing a structured decision framework can drive systematic improvements.

1. The Value Metric Evaluation Matrix

Assess potential value metrics against these criteria:

  • Alignment with customer value perception
  • Scalability as usage grows
  • Predictability for both customer and company
  • Simplicity in customer understanding

2. Freemium-to-Premium Boundary Setting

Define clear boundaries between free and paid tiers by:

  • Identifying features with high perceived value but low delivery cost
  • Setting usage limits that encourage conversion at the point of highest engagement
  • Creating natural upgrade paths based on user maturity

Tomasz Tunguz, venture capitalist at Redpoint Ventures, observes that "the most effective PLG companies place their paywall just after the user has experienced enough value to understand the product's potential, but just before they can achieve their complete goals."

3. Data-Driven Experimentation

Implement continuous experimentation to optimize pricing:

  • A/B test different pricing thresholds
  • Experiment with feature packaging across tiers
  • Test various incentives for conversion and expansion

Real-World Success: Case Studies in PLG Pricing Excellence

Notion's Expansion Strategy

Notion's pricing model exemplifies effective PLG mechanics. Their free plan allows individual users to experience core functionality, while team adoption naturally drives paid conversions. Their value metric—blocks used and team members—scales perfectly with value delivered.

According to their published case studies, Notion sees 40% of enterprise customers starting as free individual users, with team expansion driving 60% of their revenue growth.

Zoom's Conversion Engine

Before becoming a household name during the pandemic, Zoom built an efficient PLG engine centered around meeting duration limits (40 minutes for free users) and participant caps. This created a natural conversion moment when users needed to host longer meetings or larger groups.

Eric Yuan, Zoom's CEO, has attributed their pre-pandemic 169% NRR to this model, noting that "users who convert from free to paid are 30% less likely to churn and 40% more likely to expand usage over time."

Conclusion: The Executive Imperative for PLG Pricing Metrics

For SaaS executives, mastering PLG pricing metrics isn't optional—it's essential for sustainable growth. By focusing on the right metrics for free-to-paid conversion and expansion revenue, companies can build more efficient growth engines that scale with declining CAC and increasing LTV.

The most successful PLG companies have moved beyond simple A/B tests on pricing pages to sophisticated systems that continuously optimize the value exchange between company and customer. These systems align product development, marketing messaging, and sales motions around the moments that drive conversion and expansion.

As you evaluate your own PLG pricing metrics, remember that the goal isn't merely to optimize short-term conversion rates, but to establish a pricing architecture that encourages long-term customer success and, by extension, sustainable company growth.

Next Steps for Optimizing Your PLG Metrics

  1. Audit your current PLG metrics against the framework outlined above
  2. Identify gaps in your tracking capabilities, particularly around feature adoption correlation with conversions and expansions
  3. Develop experiments to test alternatives to your current value metric and tier boundaries
  4. Create a regular review process that connects product usage insights directly to pricing decisions

By making these metrics central to your executive dashboard, you'll gain the insights needed to navigate the PLG landscape with precision and confidence.

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