Customer Satisfaction Score (CSAT) Calculator
CSAT is the simplest and most direct measure of customer satisfaction. It captures how satisfied customers are with a specific interaction or experience. Unlike NPS which measures long-term loyalty, CSAT is transactional and best deployed immediately after a customer service interaction, purchase, or product usage event. A CSAT score represents the percentage of customers who gave a positive rating (usually 4 or 5 out of 5). This calculator accepts counts of satisfied, neutral, and dissatisfied respondents and returns both the standard CSAT score and a weighted average rating, giving you a complete picture of satisfaction across your customer base.
CSAT formula
CSAT = Satisfied Responses / Total Responses * 100
Only ratings of 4 or 5 on a 5-point scale count as Satisfied. Neutral (3) and Dissatisfied (1 or 2) responses lower the score.
CSAT benchmarks
- Above 90%: excellent - customers are highly satisfied.
- 80 to 90%: good - above average for most industries.
- 70 to 80%: acceptable but improvement is needed.
- Below 70%: concerning - investigate root causes of dissatisfaction.
CSAT: frequently asked questions
What is CSAT?
CSAT (Customer Satisfaction Score) measures how satisfied customers are with a specific interaction, product, or service. It is typically based on a 1 to 5 or 1 to 10 scale, and CSAT is calculated as the percentage of respondents rating 4 or 5 on a 5-point scale.
What is a good CSAT score?
A CSAT above 80% is generally considered good. Above 90% is excellent. U.S. benchmarks from the American Customer Satisfaction Index (ACSI) show that most industries average between 65 and 80%.
How is CSAT different from NPS?
CSAT measures satisfaction with a specific interaction (transactional). NPS measures overall loyalty and likelihood to recommend (relational). Both are valuable but answer different questions.
When should I use CSAT surveys?
Use CSAT immediately after key customer touchpoints: support ticket resolution, purchase completion, onboarding, and product feature usage. The closer to the interaction, the more accurate the response.
How do I improve CSAT?
Identify the specific interactions with the lowest scores, reduce wait times, improve first-contact resolution rates, train agents on empathy and product knowledge, and follow up personally on low scores.
Sources
- U.S. Federal Trade Commission: Business Guidance Resources.
- U.S. Small Business Administration: Manage Your Finances.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.