Churn Revenue Impact Calculator
See exactly how much revenue churn costs you over time. Model MRR projections with different churn rates and new customer acquisition.
Revenue & Churn Inputs
Revenue You're Leaving on the Table
$226,658
over 12 months due to 5.0% monthly churn
MRR at End of Period
$72,982
Total Revenue Earned
$763,342
Total Revenue Lost
$37,018
If Churn Were 0%
$110,000
MRR would be
MRR Projection
Month-by-Month Breakdown
| Month | Starting MRR | Churned | New MRR | Ending MRR | Cumul. Lost |
|---|---|---|---|---|---|
| 1 | $50,000 | -$2,500 | +$5,000 | $52,500 | $2,500 |
| 2 | $52,500 | -$2,625 | +$5,000 | $54,875 | $5,125 |
| 3 | $54,875 | -$2,744 | +$5,000 | $57,131 | $7,869 |
| 4 | $57,131 | -$2,857 | +$5,000 | $59,275 | $10,725 |
| 5 | $59,275 | -$2,964 | +$5,000 | $61,311 | $13,689 |
| 6 | $61,311 | -$3,066 | +$5,000 | $63,245 | $16,755 |
| 7 | $63,245 | -$3,162 | +$5,000 | $65,083 | $19,917 |
| 8 | $65,083 | -$3,254 | +$5,000 | $66,829 | $23,171 |
| 9 | $66,829 | -$3,341 | +$5,000 | $68,488 | $26,512 |
| 10 | $68,488 | -$3,424 | +$5,000 | $70,063 | $29,937 |
| 11 | $70,063 | -$3,503 | +$5,000 | $71,560 | $33,440 |
| 12 | $71,560 | -$3,578 | +$5,000 | $72,982 | $37,018 |
Churn Rate Impact Comparison
| Scenario | End MRR | Total Revenue | Total Lost |
|---|---|---|---|
| Half Rate (2.5%) | $89,300 | $867,290 | $20,700 |
| Current Rate (5.0%) | $72,982 | $763,342 | $37,018 |
| Double Rate (10.0%) | $50,000 | $600,000 | $60,000 |
Reducing churn by even 1% can have a massive compounding effect. Learn strategies in our guide to reducing churn and compare your rates against SaaS churn rate benchmarks. Use our NRR calculator to measure net revenue retention.
How Churn Revenue Impact Is Calculated
Enter Your MRR
Input your current monthly recurring revenue, churn rate, and new customer acquisition.
Project Forward
See month-by-month MRR projections with churned vs retained revenue.
Compare Scenarios
Compare impact at different churn rates to prioritize retention efforts.
Churn Revenue Formulas
Monthly Churned MRR:
Churned MRR = Starting MRR x Monthly Churn RateEnding MRR:
Ending MRR = Starting MRR - Churned MRR + New MRRAnnual Churn Impact:
Annual Retention = (1 - Monthly Churn Rate)^12Example: 5% Monthly Churn Impact
A SaaS company with $50,000 MRR and 5% monthly churn rate, adding $5,000 new MRR per month:
12-Month Impact
5% monthly churn means you lose 46% of revenue annually through customer attrition. Even with strong new customer acquisition, churn can prevent meaningful growth. Learn more in our SaaS churn rate benchmarks guide.
Who This Calculator Is For
SaaS Founders
Quantify the revenue impact of churn to justify retention investments and set improvement targets.
Growth Teams
Compare acquisition vs retention ROI and model the impact of reducing churn by even 1%.
Investors & Board
Understand long-term revenue trajectories and the compounding cost of customer attrition.
Frequently Asked Questions
How does monthly churn rate translate to annual churn?
Annual churn compounds monthly. A 5% monthly churn rate does not equal 60% annual churn. Instead, it equals 1 - (0.95)^12 = 46% annual churn. Even small monthly rates compound significantly over a year.
What is a good churn rate for SaaS?
Best-in-class SaaS companies achieve 2-3% monthly logo churn and under 1% net revenue churn (thanks to expansion revenue). For SMB-focused SaaS, 3-5% monthly is typical. Enterprise SaaS targets under 1% monthly. Use our NRR calculator to measure net retention.
What is the difference between logo churn and revenue churn?
Logo churn measures the percentage of customers who cancel. Revenue churn measures the percentage of MRR lost. They can differ significantly if high-value customers churn more (or less) than average. Revenue churn is typically more important for financial planning.
How do I reduce churn effectively?
Focus on the top 3 churn drivers: (1) Improve onboarding to drive activation within the first 7 days, (2) Identify at-risk customers through usage patterns and engage proactively, (3) Build switching costs through integrations and data lock-in. Read our complete guide to reducing churn.
Can new customer acquisition offset churn?
New acquisition can offset churn in the short term, but it becomes increasingly expensive as your base grows. At 5% monthly churn with $100K MRR, you need $5K new MRR just to stay flat. Reducing churn is almost always more cost-effective than acquiring new customers. Check your unit economics with our customer LTV calculator.
Track Churn & Revenue in Real-Time
Get automated churn tracking, revenue cohort analysis, and retention alerts across all your business entities.