Customer Effort Score Calculator Formula

Understand the math behind the customer effort score calculator. Each variable explained with a worked example.

Use the Customer Effort Score Calculator

Formulas Used

Customer Effort Score

ces = total_responses > 0 ? total_score / total_responses : 0

CES Rating (out of 7)

ces_out_of_7 = total_responses > 0 ? total_score / total_responses : 0

Variables

VariableDescriptionDefault
total_scoreSum of All Effort Scores350
total_responsesTotal Survey Responses100

How It Works

How to Calculate Customer Effort Score

Formula

CES = Sum of All Effort Scores / Total Responses

CES typically uses a 1-7 scale where customers rate agreement with a statement like "The company made it easy for me to handle my issue." Lower scores indicate lower effort (easier experience) on some scales, while others define higher as easier. The key insight behind CES is that reducing customer effort is a stronger predictor of loyalty than delighting customers. Make things effortless, and customers stay.

Worked Example

100 customers responded to a CES survey. The total of all individual scores is 350 (on a 1-7 scale where 7 = strongly agree it was easy).

total_score = 350total_responses = 100
  1. 01CES = 350 / 100 = 3.50
  2. 02On a 7-point scale, a score of 3.50 is below the midpoint, suggesting room for improvement.

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Open Customer Effort Score Calculator