SaaS Metrics Guides

In-depth guides to every key SaaS metric. Each guide covers the formula, what counts and what to exclude, benchmarks by funding stage, real-world examples, and common mistakes to avoid. Plus a complete glossary of all 14 terms in one place.

Revenue & Growth

What Is MRR? Monthly Recurring Revenue Explained

The formula, what to include and exclude, the MRR waterfall, and benchmarks by funding stage.

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What Is ARR? Annual Recurring Revenue Explained

ARR vs MRR, valuation multiples, what to include, and why investors care about this number.

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What Is ARPU? Average Revenue Per User Explained

ARPU benchmarks by segment, why rising ARPU matters, and how to increase it through pricing and upsells.

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What Is Expansion MRR? How to Drive Upsell Revenue

The cheapest revenue in SaaS, land-and-expand strategy, and how expansion drives NRR above 100%.

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Retention & Churn

What Is SaaS Churn Rate? Customer & Revenue Churn Explained

Customer churn vs revenue churn, voluntary vs involuntary churn, how to reduce churn, and common mistakes.

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What Is Revenue Churn (MRR Churn)? Formula & Benchmarks

Gross vs net revenue churn, why it differs from customer churn, and how to make net churn negative.

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What Is NRR? Net Revenue Retention Explained

NRR vs GRR, real-world examples from Snowflake and Datadog, and how to improve your net revenue retention.

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What Is GRR? Gross Revenue Retention Explained

The purest measure of retention without expansion masking, GRR vs NRR, and benchmarks by stage.

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Unit Economics

What Is CAC? Customer Acquisition Cost Explained

What to include in CAC, benchmarks by channel, and how to reduce acquisition costs efficiently.

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What Is LTV? Customer Lifetime Value Explained

Why gross margin matters, how churn compounds into LTV, and strategies to increase lifetime value.

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What Is a Good LTV:CAC Ratio? Formula & Benchmarks

How to calculate LTV and CAC, what 3:1 means, why above 5:1 may be bad, and how to improve unit economics.

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What Is CAC Payback Period? Formula & Benchmarks

How fast you recover acquisition costs, payback vs LTV:CAC, and why this metric matters for cash flow.

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Health & Efficiency

What Is the Rule of 40? SaaS Health Metric Explained

How growth rate plus profit margin equals 40, real-world company examples, and how to improve your score.

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What Is Burn Multiple? Cash Efficiency Explained

How much cash you burn per dollar of new ARR, benchmarks, and how to improve capital efficiency.

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Comparisons

NRR vs GRR: What's the Difference?

Why expansion makes NRR and GRR tell different stories, and when to use each metric.

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Customer Churn vs Revenue Churn

Why losing people and losing money are different problems, and what the gap reveals.

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MRR vs ARR: When to Use Each

Monthly vs annualized revenue, why investors prefer ARR, and when each metric is more useful.

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LTV vs CAC: The Unit Economics Relationship

Why these two metrics must always be evaluated together, and how to improve the ratio.

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Reference

SaaS Metrics Glossary: All 14 Terms Defined

Every SaaS metric in one place — definitions, formulas, benchmarks, and links to in-depth guides.

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SaaS Metrics Checklist: Monthly Review & Board Prep

A printable checklist for tracking all 14 metrics monthly, plus a board meeting prep template.

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Individual Metric Calculators

MRR Calculator

Calculate your Monthly Recurring Revenue, ARR, and ARPU instantly.

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SaaS Churn Rate Calculator

Calculate customer churn and revenue churn with health indicators.

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LTV:CAC Calculator

Calculate LTV, CAC, LTV:CAC ratio, and CAC payback period in one tool.

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NRR Calculator

Calculate Net Revenue Retention and Gross Revenue Retention instantly.

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Ready to calculate your metrics?

Plug in your numbers and get all 14 SaaS metrics with instant health benchmarks.

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