Glossary

CSI (Customer Satisfaction Index)

The Customer Satisfaction Index (CSI) is a common measure of customer satisfaction used by businesses to understand how well they are meeting customer expectations and needs. CSI measures customers’ overall satisfaction with a company’s products, services, and customer experience.

How is CSI calculated?

CSI is usually calculated by asking customers to answer a number of questions about their satisfaction with various aspects of the company’s offering, for example:

  • Product quality
  • Service offering
  • Customer service
  • Value for money
  • Delivery and availability

The answers are often given on a scale from 1-5 or 1-10, where higher ratings indicate higher satisfaction. The CSI is then calculated as a weighted average of the customers’ answers, expressed as a percentage or index.

Use of CSI

CSI is used to:

  • Understand customers’ overall satisfaction and loyalty.
  • Identify strengths and areas for improvement in the customer experience.
  • Set goals and track improvement initiatives over time.
  • Benchmark against competitors and best practice within the industry.
  • Prioritise investments and resource allocation for maximum customer satisfaction.

By regularly measuring and acting on CSI, businesses can develop a customer-oriented culture, strengthen customer relationships, and create competitive advantages. Satisfied customers tend to be more loyal, buy more, and recommend the company to others. Striving for high customer satisfaction is therefore a central part of many companies’ strategy and an important driver of profitable growth.

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