How to use this Rule of 40 Calculator
Enter your current SaaS metrics, then review the result, secondary metrics, and benchmark interpretation. This calculator is designed for fast planning rather than formal accounting.
Formula
The important point is consistency. Use the same revenue definition, time period, and customer definition every time so the metric remains comparable month to month.
Result interpretation
The result is now classified as growth-heavy, profitability-heavy, balanced, or underpowered. A company can pass the Rule of 40 through fast growth, strong margin, or a mix of both.
FAQ
What does this calculator measure?
Measure SaaS growth efficiency by combining revenue growth rate and profit margin.
What is the formula?
Rule of 40 = Revenue Growth Rate + Profit Margin
How should I use this result?
Use it as a quick operating metric, then compare it with cohort trends, pricing changes, cash flow, retention, and acquisition channel quality.
Is this calculator exact accounting?
No. It is a planning calculator. Use consistent definitions from your finance reports when making board, investor, or fundraising decisions.