I built free SaaS churn tools (and realised most benchmarks are useless)

Over the weekend I went down a rabbit hole trying to answer a simple question:

What is a “good” churn rate for SaaS?

I expected a clear answer.

Instead, I found:

• “<5% monthly churn is good”
• “5-7% is average”
• “>7% is bad”

But none of that really helps.

Because it ignores things like:

• stage (early vs growth vs scale)
• pricing model (monthly vs annual)
• industry
• customer type (B2B vs B2C)

A SaaS at $5k MRR behaves very differently to one at $1M ARR.

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So I built a few simple tools

To make things more concrete, I built a set of free churn tools:

• churn rate calculator
• revenue lost to churn calculator
• SaaS LTV calculator
• SaaS churn benchmark tool

👉 https://saucecode.co/tools/churn

They’re intentionally simple - just enough to:

1. calculate churn quickly
2. start collecting anonymised data

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The real idea isn’t the calculators

The tools are just the starting point.

What I actually want to build is a live dataset of SaaS churn benchmarks.

Instead of static blog posts saying:
“good churn is X%”

We could eventually answer things like:

• What’s average churn for SaaS under $10k MRR?
• How does churn differ between monthly and annual plans?
• What does churn look like by industry?

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The problem with existing benchmarks

Most churn benchmarks today come from:

• annual reports
• limited datasets
• or broad surveys

Which leads to advice that’s either:

• outdated
• too general
• or not actionable

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What I’ve noticed already

Even in early conversations and posts:

• smaller SaaS founders often don’t know if their churn is “normal”
• people focus on reducing churn, but not benchmarking it
• segmentation (billing, onboarding stage, etc.) matters a lot

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Where this could go...

If enough people use the tools, this could turn into:

• real-time churn benchmarks
• segmented by company size / industry
• potentially even trends over time

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Quick question for other founders to see what others think about this:

• Do you actually benchmark your churn today?
• And if so, what do you compare it against?

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If you want to try it, it’s free, no signup required:

https://saucecode.co/tools/churn

Would love any feedback - still very early and figuring out if this is worth pushing further.