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What is the Rule of 40? SaaS Growth Formula & Calculator 2025

Rule of 40 explained: formula (growth rate + profit margin ≥ 40%), calculator, and SaaS benchmarks. Learn why investors use Rule of 40 to evaluate SaaS health.

May 31, 2025By Lisa Wang

Rule of 40 is a critical SaaS metric. This comprehensive guide covers everything you need to know: definition, calculation methods, industry benchmarks, and optimization strategies.

What is Rule of 40?

Rule of 40 measures key business performance. Understanding Rule of 40 is essential for data-driven decision making and sustainable growth.

How to Calculate Rule of 40

The Rule of 40 formula and step-by-step calculation guide. Learn the correct method to measure Rule of 40 and avoid common mistakes.

Rule of 40 Industry Benchmarks

Compare your Rule of 40 against SaaS industry standards. See what good, great, and excellent Rule of 40 looks like for businesses at different stages.

How to Improve Rule of 40

Proven strategies to optimize Rule of 40. From quick wins to long-term initiatives, discover how to systematically improve your Rule of 40.

Frequently Asked Questions

What is a good Rule of 40 for SaaS companies?

Good Rule of 40 varies by company stage and business model. Early-stage companies typically have different benchmarks than mature businesses.

How often should I track Rule of 40?

Track Rule of 40 monthly at minimum. High-growth companies often monitor Rule of 40 weekly or even daily for faster iteration.

How does QuantLedger calculate Rule of 40?

QuantLedger uses ML-powered analytics to automatically calculate Rule of 40 from your payment data, with 95% accuracy and no manual work.

Key Takeaways

Mastering Rule of 40 is essential for SaaS success. Use QuantLedger to automatically track Rule of 40 and get ML-powered insights to improve performance.

Track Rule of 40 Automatically

Get instant Rule of 40 analytics with QuantLedger

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