Free tool

Churn calculator.

Measure customer churn, revenue churn and retention in seconds. Understand exactly how much your business loses every month — and how it impacts LTV, CAC payback and your ability to scale profitably.

Customers for the period
Customer churn rate
Monthly
3.00%
Annualised churn
12-month projection
30.6%
Customers retained
Per 100 each month
97.0

What churn is and why it silently kills companies that look healthy

Churn is the rate at which customers (or revenue) leave your business in a given period. It's the most misunderstood metric in subscription businesses because it doesn't trigger alarms — it just slowly eats your growth from underneath. A company can be acquiring aggressively and still shrink if churn is high enough.

Churn formulas
Customer churn = Lost customers ÷ Customers at start × 100
Revenue churn = Lost MRR ÷ MRR at start × 100

Why revenue churn matters more than customer churn

Customer churn treats every account equally. Revenue churn reflects actual financial impact: losing one large account hurts much more than losing ten small ones. Healthy companies track both and pay particular attention to revenue churn in the top customer decile.

Net negative churn — the holy grail

When expansion revenue from existing customers (upsells, plan upgrades, seat expansion) exceeds revenue lost to churn, the result is net negative churn. The company grows MRR from its base even without acquiring a single new customer. It's the strongest proof of product-market fit you can show an investor.

How to reduce churn in practice

Activate customers fast: define a clear first-value moment and engineer onboarding around it. Catch warning signs early: drop in usage, support tickets, billing failures. Invest in customer success on enterprise accounts. Use proactive saves on cancellation flows. And most importantly, improve acquisition mix — channels with higher intent deliver customers who stay longer.

Frequently asked questions

Everything you need to know about churn

What's the difference between customer churn and revenue churn?

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Customer churn counts how many accounts cancel. Revenue churn (or MRR churn) measures how much recurring revenue you lose. Revenue churn is more important: losing one enterprise customer can equal losing twenty small ones in dollar terms.

What's a healthy churn rate?

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Depends on segment. Enterprise B2B SaaS: under 1% monthly. SMB SaaS: 3–5% monthly. B2C subscription: 5–7% monthly. Above 10% monthly, you have a leaky bucket — growth becomes mathematically very hard.

What's net negative churn?

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When expansion revenue (upsells, cross-sells, plan upgrades) exceeds revenue lost to churn. A company with net negative churn grows MRR from its existing base even without acquiring a single new customer. It's the holy grail of SaaS metrics.

How does churn affect LTV?

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Massively. Customer life is derived from churn: 1 ÷ monthly churn rate. Cut churn from 5% to 3% and customer life jumps from 20 to 33 months — a 65% LTV lift without touching price or margin.

Should I focus on reducing churn or increasing acquisition?

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Almost always churn first. Reducing churn improves LTV, lowers required CAC, lifts payback and compounds the return on every future acquisition dollar. Pouring acquisition into a high-churn product is filling a leaky bucket.

How does the acquisition channel affect churn?

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A lot. Customers from SEO and content typically have lower churn than paid acquisition — they arrived actively looking for the solution, not interrupted by an ad. Channel mix is one of the cheapest churn-reduction levers most teams ignore.

Enterprise SEO consultancy

Every paid click has an organic equivalent waiting to be earned.

We design end-to-end SEO programs for brands that want to lower their paid dependency, scale predictable organic traffic and dominate Google plus the new AI search surfaces.

+1B
Organic visits generated
+280%
Average lead growth
-73%
CAC reduction
+2,500%
AI search visibility
What we do

SEO strategy, technical SEO, content, authority and AI visibility (GEO) under one senior team. SEO tied to pipeline and revenue, not vanity metrics.

How we do it

Squad embedded in Slack, Notion and Linear. Weekly sprints, a 12–24 month roadmap and executive reporting that connects every organic move with CAC, leads and revenue.

What you get

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Methodology
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Diagnosis

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Strategy

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Measurement

Organic KPIs tied to pipeline and CAC. Monthly iteration on what is actually moving the business, not on what climbs in Search Console.

SEO consultancy

Is your CPC high and your margin eroding?

We will send you a free SEO diagnostic with the real organic opportunities for your domain and a projection of how much you could cut paid spend while keeping the same lead volume.