Kairos Microtools

Subscription Churn Revenue Calculator

See what churn really costs your SaaS — and what fixing it is worth. Free, no signup.

Early-stage Growth Mature
Monthly Revenue Lost
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Customers Lost / Month
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Net Revenue Retention (12mo)
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MRR after 12mo (zero new sales)
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New Customers / Mo just to hold flat
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Annual Revenue Saved at Target
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Why track churn revenue

Churn is a leak, not a cost. It compounds monthly — 5% looks small until you see the 12-month hole.
Fixing beats buying. Retaining a customer is usually cheaper than replacing one via ads.
No spreadsheet. Enter MRR and churn; see the real number in one view.

Go Pro — Churn Revenue Suite ($19 one-time)

The free calculator shows one scenario. Pro unlocks the full picture:

$19 — pay once, yours forever
Get Churn Revenue Suite

Free calculator stays free. No subscription, no login.

FAQ

Is this free?

Yes — the single-scenario calculator is free and needs no signup. Pro is a one-time $19 upgrade.

Does it predict my revenue?

No. It does the math from the numbers you enter. It is not financial advice.

Who is it for?

SaaS and subscription founders who want to quantify churn's revenue impact without a BI tool.

What does Pro add?

A 12-month forecast spreadsheet, a retention playbook PDF, and a fix-vs-buy ROI comparison.