Metrics · Retention · Ops · Per event · score · Updated 2026-07-21

What is Customer Effort Score?

Short answer: A survey-based score measuring how much effort a customer had to expend to complete a task or resolve an issue.

Definition

A survey-based score measuring how much effort a customer had to expend to complete a task or resolve an issue.

Formula

Average effort rating across responses (typically 1-7 scale)

How to measure

Ask 'How much effort did you personally have to put forth to handle your request?' right after a task, then average the numeric responses.

Why track it

Lower effort scores correlate strongly with loyalty, making CES a leading indicator of churn risk tied to specific friction points.

Example

A billing self-serve change reduces average CES from 4.8 to 2.1 out of 7.

FAQ

What is Customer Effort Score?
A survey-based score measuring how much effort a customer had to expend to complete a task or resolve an issue.
How do you calculate Customer Effort Score?
Average effort rating across responses (typically 1-7 scale)
Why track Customer Effort Score?
Lower effort scores correlate strongly with loyalty, making CES a leading indicator of churn risk tied to specific friction points.
What is Customer Effort Score? Definition, formula, and growth use · Cofounderbase