CES calculator
Customer Effort Score — average ease rating on 1–5 or 1–7 scale
Enter survey data
Enter number of responses for each rating (1 = very easy, max = very difficult)
Assumptions and limitations
- CES measures effort; 1 = minimum effort (good).
- Standard question: "How easy was it for you to resolve your issue?"
- Low CES correlates with loyalty and repeat purchases.
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How CES is calculated and when to use it
CES formula
CES = sum of ratings / number of responses (arithmetic mean). Rating 1 = minimum effort (good), max rating = maximum effort (bad). Result is interpreted by scale.
Scale 1–5
Standard for many surveys. CES below 2 — excellent, 2–3 — good, above 3 — needs attention. Often used after support and for process ease.
Scale 1–7
Finer gradation. Below 3 — excellent, 3–4 — good, above 4 — risk zone. Suited for detailed customer experience research.
Typical scenarios
Support (ease of resolving issue), onboarding (ease of signup), checkout, finding information. CES is measured right after the interaction.
Interpreting CES
* Lower CES = easier experience for the customer
FAQ about CES
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In SurveyNinja, NPS, CSAT and more are calculated automatically. Create a survey in 5 minutes and get real-time analytics.
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