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profit calculator

Churn Revenue Impact Calculator

Quantify the dollar impact of customer churn on your recurring revenue, built for SaaS founders, membership creators, and subscription-based businesses. The calculator models monthly churn rates, the revenue you lose each month, projected MRR over 12 months, and the annual value of reducing churn — showing why retention often beats acquisition.

Churn revenue impact

Monthly churn revenue loss$500
Annual churn revenue loss$6,000
Est. customers lost / year12
Net MRR change (new − churn)$1,500
Projected MRR in 12 months$28,000
Time to run out of MRRGrowing — MRR increasing

If you reduced churn by 50% (from 5% to 2.5%):

Annual savings from cuting churn in half$3,000

Churn revenue loss = current MRR × churn rate. Net MRR change = new MRR − churned MRR. Cutting churn by half retains an additional $3,000/year without adding a single new customer.

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How this calculator works

Monthly churned revenue is calculated by multiplying your current MRR by the monthly churn rate, revealing exactly how much recurring revenue disappears each month due to cancellations and downgrades. Net MRR change per month is computed as new MRR acquired minus churned revenue. The calculator then projects MRR 12 months forward by adding net monthly change multiplied by 12 to the current MRR, showing whether you are trending toward growth, plateau, or decline. The annual value of cutting churn in half is calculated by halving the annual churn loss — this is revenue you could retain without spending a dollar on new customer acquisition.

Useful scenarios

  • A SaaS founder with $10K MRR at 5% monthly churn and $2K new MRR/month — seeing that churn eats $600/month and zero growth in 9 months.
  • A membership creator with $5K MRR at 8% churn — realizing they lose $4,800/year to churn and halving it saves $2,400 without new customers.
  • A course platform with $50K MRR at 3% churn and $8K new sales/month — modelling the impact of reducing churn from 3% to 1.5%.

FAQ

What is a healthy monthly churn rate?

For SaaS: 3-5% monthly churn is average for SMB. Under 2% is excellent. For creator memberships (Patreon, etc.): 5-10% is typical. For high-ticket services: under 2%. This calculator helps you quantify churn in dollar terms.

Is it better to focus on reducing churn or acquiring new customers?

Reducing churn has a compounding effect — every retained customer continues generating revenue. Improving churn from 5% to 3% can be worth more than a 20% increase in new sales. The calculator shows the annual dollar value of cutting churn in half.

How do I calculate churn rate for my business?

Monthly churn = customers lost in a month ÷ customers at start of month. For revenue churn (which this calculator uses): MRR lost to cancellations and downgrades ÷ starting MRR. The two can differ if high-value customers churn more than low-value ones.