Customer Effort Score Calculator

Customer Effort Score Calculator: calculate customer effort score for your business. Formula, benchmarks, and practical tips included.

Customer Effort Score (CES) measures how easy it is for customers to resolve an issue, complete a transaction, or interact with a service. It is typically measured with a single question: "How easy was it to handle your request today?" on a 1–7 scale (or agree/disagree scale). CES was introduced by CEB (now Gartner) research in 2010, which found that reducing customer effort is a stronger predictor of loyalty and repurchase than satisfaction alone — particularly in service recovery contexts. Profit Margin Calculator and Markup Calculator provide complementary customer experience perspectives alongside CES.

Survey customers immediately after a service interaction or task completion using the standard CES question.
CES score = Average of all responses on the 1–7 scale, or % of "low effort" responses (6–7 on a 7-point scale).
Track CES by interaction type, channel, and agent team.
Compare CES against NPS and CSAT to build a complete customer experience picture.
Focus on reducing effort for the highest-volume interaction types first for maximum impact.

CES formula

Average CES = Sum of all scores ÷ Number of responses

Top-box CES % = Responses scoring 6–7 ÷ Total responses × 100

Worked example: 400 post-interaction responses. Average score 5.4 out of 7. Top-box (6–7): 260 responses. Top-box CES = 65%. Benchmark for strong service organisations: top-box CES above 75%.

CES benchmarks

Effort reduction impact

CEB/Gartner research found that 96% of customers who report high effort in resolving an issue report lower loyalty, vs only 9% of low-effort customers. Each additional effort-reducing change in a customer journey correlates with measurable retention improvement. CES is particularly powerful for identifying and reducing friction in self-service channels, returns processes, and technical support interactions.

Business tips and best practices

CES is most valuable for service recovery and transactional journeys — for overall brand perception, NPS is more appropriate.
Combine CES with qualitative follow-up ("what could we have made easier?") to identify specific friction points for UX or process improvement.
Track CES trends over time after introducing self-service tools, chatbots, or process changes — effort reduction from these investments should show in CES within 4–8 weeks.

See formula and results sections for key figures and benchmarks.

Common mistakes to avoid

See tips section for common pitfalls to avoid.

Customer survey data must be collected and handled in compliance with applicable privacy law. Published CES claims must be accurate and representative. CES® methodology was developed by CEB (now Gartner); the concept is widely used but the implementation varies across vendors. This calculator is for internal planning purposes only.