Customer Churn Rate Calculator

This shows how fast you're losing customers, and how long the average one stays.

Acquisition fuels growth. Retention is what keeps it from leaking back out. It moves past chasing new customers to keeping the value you already earned, which matters most when high acquisition costs are eating your profit as you scale.

What You'll Need — two inputs:

• Total Customers Last Year: your baseline at the start of the period.

• Total Customers Lost This Year: accounts that ended the relationship during that same period.

Your Results — two insights:

• Churn Rate: the share of your base that's leaving, a clear read on brand health and market fit.

• Average Customer Lifetime: how long, in years, the average customer stays. This feeds directly into Lifetime Value (LTV).

Worth Knowing

It costs 5 to 25 times more to acquire a customer than to keep one. Cutting churn by even 5% can raise profits by 25% to 95%.