Logo Churn Rate Calculator

Evaluate lost accounts, retention, and customer movement. Use beginning values, gains, and period comparisons confidently. Spot churn patterns quickly before growth efficiency starts weakening.

Calculator Inputs

Period Label

Calculation Base

Starting Customers

Customers Lost

New Customers

Reactivated Customers

Ending Customers (Optional Override)

Period Length in Months

Benchmark Churn Rate % (Optional)

High-Value Logos Lost (Optional)

Analyst Notes (Optional)

Example Data Table

Period	Starting Logos	Lost Logos	New Logos	Reactivated Logos	Ending Logos	Gross Churn %	Retention %
January	900	18	24	4	910	2.00%	98.00%
February	910	21	28	3	920	2.31%	97.69%
March	920	29	26	2	919	3.15%	96.85%

Formula Used

1) Gross Logo Churn Rate

Gross Logo Churn Rate (%) = Customers Lost / Selected Customer Base × 100

2) Gross Logo Retention Rate

Gross Logo Retention Rate (%) = (Starting Customers − Customers Lost) / Starting Customers × 100

3) Average Customer Base

Average Customer Base = (Starting Customers + Ending Customers) / 2

4) Ending Customers

Ending Customers = Starting Customers − Customers Lost + New Customers + Reactivated Customers

5) Replacement Rate

Replacement Rate (%) = (New Customers + Reactivated Customers) / Customers Lost × 100

6) Monthly Equivalent Churn

Monthly Equivalent Churn = 1 − (1 − Period Churn)^{1 / Months}

How to Use This Calculator

Enter a period label so your exported report stays easy to identify.
Choose whether churn should use the beginning customer base or the average base.
Add starting customers, customers lost, new customers, and reactivated customers.
Leave ending customers blank for automatic calculation, or enter a known ending value to compare against movement.
Enter the number of months in the period to normalize churn correctly.
Optionally add a benchmark churn rate and high-value losses for deeper analysis.
Click Calculate Logo Churn to show the results above the form.
Use the CSV and PDF buttons to export the summary and the chart.

FAQs

1) What is logo churn rate?

Logo churn rate measures the percentage of customer accounts lost during a period. It focuses on account count, not contract value, making it helpful for customer retention tracking.

2) Why use beginning customer base versus average base?

Beginning base is the common simple method. Average base can better reflect periods with strong customer movement because it smooths changes between the start and end counts.

3) Are new customers included in churn?

Gross logo churn only counts lost customers against a chosen base. New and reactivated customers affect growth, replacement rate, and ending customers, but not gross churn itself.

4) What does replacement rate tell me?

Replacement rate shows how much of lost customer volume was replaced by new or reactivated accounts. A value above 100% means acquisition fully offset logo losses.

5) Why annualize churn?

Annualizing converts short-period churn into a yearly equivalent. That makes it easier to compare different reporting periods and communicate retention health to leadership.

6) What is a good logo churn rate?

The answer depends on product type, pricing model, and market maturity. Lower is better, but strong acquisition and expansion can temporarily offset higher logo loss.

7) Why track high-value logos lost?

Two companies may lose the same number of customers, yet the impact can differ sharply. High-value logo tracking highlights whether churn is concentrated among strategically important accounts.

8) Can this calculator support quarterly or yearly periods?

Yes. Enter the correct number of months for the chosen period. The calculator will normalize the churn to a monthly equivalent and also estimate an annualized rate.