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Churn Impact Calculator

Measure churn's compounding impact on your growth

Churn doesn't just cost you customers - it compounds over time and can completely offset your growth efforts. This calculator shows the true long-term revenue impact of churn and how much faster you would grow with lower churn rates.

Your Data

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Formula used:

Revenue Lost = Starting MRR × (1 - (1 - Churn Rate)^Months)

Result

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SaaS Benchmarks

< 2% monthlyExcellent retention
2% - 5% monthlyGood (B2B standard)
5% - 8% monthlyConcerning
> 8% monthlyLeaky bucket

Optimization Tips

  • 5% monthly churn = 46% annual churn (compounding effect)
  • Reducing churn by 1% can be worth more than 10% more new customers
  • Best SaaS companies have negative net churn (expansion > churn)
  • Early churn (< 3 months) indicates onboarding problems
  • Late churn indicates value delivery or competition issues
  • Segment churn by cohort to identify root causes

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Related Metrics

Churn RateNet Revenue RetentionLTVCustomer Lifetime

How to Use This Calculator

Churn compounds monthly. A 5% monthly churn means you lose ~46% of customers annually (1 - 0.95^12). This calculator shows how much revenue you're leaving on the table due to churn over 12 months.

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