Calculate your CSAT percentage instantly — supports 5-point scale, 10-point scale, and custom thresholds. Includes the CSAT formula, worked examples, and step-by-step calculation guide.
Ratings of 4 and 5 count as satisfied (top-two-box). Enter your response totals or switch to rating-band input mode.
Enter response count for each rating. Ratings 4 and 5 (highlighted) count as satisfied.
Ratings of 9 and 10 count as satisfied. Enter your response totals or switch to rating-band input mode.
Enter response count for each rating. Ratings 9 and 10 (highlighted) count as satisfied.
Use your own satisfaction threshold. Enter satisfied and total response counts, and describe your threshold for reference.
CSAT Score
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Satisfied—
Total—
Scale—
The CSAT Formula – How to Calculate CSAT Percentage
The standard CSAT calculation formula is straightforward: divide the number of satisfied responses by the total number of responses, then multiply by 100 to express the result as a percentage.
CSAT Formula
CSAT % = (Satisfied Responses ÷ Total Responses) × 100
The formula itself is fixed. What varies between survey programs is the definition of "satisfied" — which rating values count toward the satisfied numerator. This depends on the scale you use.
Scale
Satisfied Ratings
Logic Name
5-point scale
Ratings 4 and 5
Top-two-box
10-point scale
Ratings 9 and 10
Top-two-box
Custom scale
Defined by your team
Custom threshold
Neutral responses (e.g. rating 3 on a 5-point scale) are not counted as satisfied in the standard CSAT method. Only explicitly positive responses count.
How to Calculate CSAT – Step by Step
You can calculate CSAT manually in five steps:
Choose your scale. Decide whether your survey uses a 5-point, 10-point, or other scale. The scale determines which ratings count as satisfied.
Identify satisfied responses. For a 5-point scale, count all responses rated 4 or 5. For a 10-point scale, count all responses rated 9 or 10. For custom scales, apply your defined threshold.
Count all responses. Total every survey response received for that survey period — regardless of rating. This is your denominator.
Apply the formula. Divide the satisfied count by the total count. Multiply by 100.
Interpret the result. Review the percentage in context of your industry, channel, and historical CSAT trend. A single score in isolation tells you less than a consistent score tracked over time.
Applied Example
155 satisfied responses ÷ 200 total responses × 100 = 77.5% CSAT
CSAT Calculation on a 5-Point Scale
The 5-point CSAT scale is the most widely used format. Respondents rate their experience using five options, typically labeled:
Rating
Label
Counts as Satisfied?
1
Very Dissatisfied
No
2
Dissatisfied
No
3
Neutral
No
4
Satisfied
Yes
5
Very Satisfied
Yes
Counting ratings 4 and 5 as satisfied is called the top-two-box method. It is the standard approach for 5-point CSAT calculation.
5-Point Scale CSAT Worked Example
A customer support team collects 200 responses after resolving tickets. The results are:
This support team's CSAT score is 77.5% — a good result indicating that most customers are satisfied with the support experience.
CSAT Calculation on a 10-Point Scale
Some teams use a 10-point CSAT scale, particularly in industries where customers are accustomed to rating experiences on a 1–10 basis. The logic is the same as for NPS: only the top two ratings (9 and 10) count as satisfied.
Why only 9 and 10? On a 10-point scale, an 8 is considered neutral to slightly positive — not clearly satisfied. Research into rating psychology shows that customers who are genuinely satisfied tend to select 9 or 10. Counting 7 and 8 would inflate the score and make it harder to distinguish between truly satisfied and merely tolerant customers.
Rating
Category
Counts as Satisfied?
1–6
Dissatisfied
No
7–8
Neutral / Passive
No
9–10
Satisfied
Yes
10-Point Scale CSAT Worked Example
A product team sends a post-onboarding CSAT survey to 500 users. The breakdown is: 45 gave scores 1–6, 75 gave scores 7–8, 182 gave a 9, and 198 gave a 10.
The onboarding CSAT is 76% — a solid baseline for this team to track and improve over time.
Average CSAT Score vs. CSAT Percentage
Some teams also report the average numeric rating across all responses alongside the CSAT percentage. These are two different metrics, and it is important not to confuse them.
Metric
How It's Calculated
What It Shows
CSAT % (standard)
(Satisfied ÷ Total) × 100
Share of respondents who are satisfied
Average score (secondary)
Sum of all ratings ÷ Total responses
Mean rating across all respondents
The percentage method is the CSAT standard because it directly answers the question: what proportion of customers are satisfied? Average score can be useful internally for detecting shifts in rating distribution, but it is not the standard reporting method for CSAT benchmarking.
Avoid the mix-up: Reporting an average score of 4.2 out of 5 as a "CSAT score" is technically not CSAT — it is an average rating. Always label clearly which method you are using.
CSAT Calculation Examples
Four worked examples covering different scales, sample sizes, and scenarios.
Example 1 — 5-Point Scale
77.5%
Scale: 5-point
Total responses: 200
Satisfied (ratings 4–5): 155
(155 ÷ 200) × 100 = 77.5%
Good — consistently above 75% is a positive indicator for support teams.
Example 2 — 10-Point Scale
76%
Scale: 10-point
Total responses: 500
Satisfied (ratings 9–10): 380
(380 ÷ 500) × 100 = 76%
Good — a solid baseline score for a product onboarding flow.
Example 3 — Small Sample
80%
Scale: 5-point
Total responses: 20
Satisfied (ratings 4–5): 16
(16 ÷ 20) × 100 = 80%
Caution: n=20 is a small sample. One or two response changes would shift the score significantly.
Example 4 — Custom Threshold
68%
Scale: 7-point (satisfied = 6 & 7)
Total responses: 350
Satisfied (ratings 6–7): 238
(238 ÷ 350) × 100 = 68%
Fair — custom-threshold scores must be compared against your own baseline, not standard benchmarks.
CSAT Survey Question Templates
CSAT is most effective when measured immediately after a specific interaction. Use a single, clear satisfaction question. Examples:
How satisfied were you with your experience today?
How satisfied are you with this product or service?
How satisfied were you with the support you received?
How satisfied are you with the checkout process?
How satisfied were you with the speed of resolution?
How satisfied are you with your onboarding experience?
How satisfied were you with the call you had with our team today?
Keep the question focused on a single, specific interaction. Broad questions like "How satisfied are you with our company overall?" blend multiple experiences and make it harder to act on the score. CSAT works best as a transactional, moment-in-time metric.
Interpreting Your CSAT Score
CSAT is a percentage of satisfied respondents. A higher score indicates more of your customers are satisfied, but context matters significantly.
Below 50%
Needs Improvement
50–74%
Fair
75–84%
Good
85%+
Excellent
These are general reference bands, not universal benchmarks. Interpretation depends on several factors:
Industry: Utilities and telecommunications often score lower than retail or hospitality. Compare against industry peers, not universal averages.
Channel: Post-chat CSAT tends to score differently than post-call CSAT. Keep comparisons within the same channel.
Question wording: A slight change in the survey question can shift scores. Never compare two periods where the question changed.
Scale used: Scores from a 5-point scale and a 10-point scale are not directly comparable. Choose one and stick with it.
Sample size: Scores from very small samples (fewer than 30 responses) are statistically fragile. Treat them as directional, not definitive.
The most meaningful CSAT insight comes from tracking your own score consistently over time — spotting trends, correlating dips with specific events, and measuring the impact of improvements.
CSAT Measurement Use Cases
Support Team CSAT
Measure satisfaction immediately after ticket resolution to identify agents, channels, or issue types with low satisfaction.
Post-Purchase CSAT
Collect satisfaction feedback after a completed purchase to evaluate the buying experience and reduce buyer's remorse.
Product Experience CSAT
Trigger in-product surveys after key actions (e.g. completing a feature) to measure satisfaction with specific functionality.
Onboarding CSAT
Measure satisfaction at the end of the onboarding journey to identify friction points before they lead to churn.
Call Center CSAT
Survey customers via IVR or SMS after calls to benchmark agent performance and identify coaching opportunities.
Delivery & Fulfillment
Track CSAT for the delivery experience separately from the product experience to isolate logistics-related satisfaction issues.
Common CSAT Calculation Mistakes
Counting neutral responses as satisfied. On a 5-point scale, rating 3 is neutral, not satisfied. Only ratings 4 and 5 count. Including 3s inflates the score and misrepresents performance.
Reporting average score as CSAT. Average score (e.g. 4.1 out of 5) is not the same as CSAT percentage. They are different calculations and should be labeled accordingly.
Mixing 5-point and 10-point scoring rules. If you switch scale mid-program and apply 5-point threshold rules to 10-point data (or vice versa), the numbers are not comparable.
Changing the survey question and comparing results. Even a minor rewording can shift responses. If you change the question, treat it as a baseline reset.
Ignoring sample size. A 90% CSAT score from 10 responses is not as meaningful as an 82% score from 500 responses. Always include response counts when reporting.
Using CSAT for measuring loyalty. CSAT measures transactional satisfaction. For long-term loyalty and advocacy, use NPS. For effort and friction, use CES. Applying the wrong metric to the wrong question gives misleading data.
Comparing CSAT across different channels without context. Phone, chat, and email CSAT scores are not directly comparable due to different customer expectations and interaction types.
Frequently Asked Questions
What is CSAT?
CSAT stands for Customer Satisfaction Score. It is a survey-based metric that measures the percentage of respondents who express satisfaction with a specific interaction, product, or service. It is calculated by dividing satisfied responses by total responses and multiplying by 100. CSAT is one of the most widely used customer experience metrics alongside NPS and CES.
How do you calculate CSAT?
CSAT % = (Number of satisfied responses ÷ Total number of responses) × 100. For example, if 155 out of 200 respondents gave a rating of 4 or 5 on a 5-point scale: (155 ÷ 200) × 100 = 77.5% CSAT. Use the calculator above to calculate your CSAT score instantly.
What is the CSAT formula?
The standard CSAT formula is: CSAT % = (Satisfied Responses ÷ Total Responses) × 100. The formula is the same for all scales — what changes is the definition of "satisfied." On a 5-point scale, satisfied = ratings 4 and 5. On a 10-point scale, satisfied = ratings 9 and 10.
How do you calculate CSAT on a 5-point scale?
Count the number of responses rated 4 or 5. Divide by the total number of responses. Multiply by 100. Example: 140 ratings of 4 or 5 out of 200 total responses = (140 ÷ 200) × 100 = 70% CSAT. This is called the top-two-box method, and it is the standard approach for 5-point CSAT surveys.
How do you calculate CSAT on a 10-point scale?
Count the number of responses rated 9 or 10. Divide by the total number of responses. Multiply by 100. Example: 380 ratings of 9 or 10 out of 500 total responses = (380 ÷ 500) × 100 = 76% CSAT. Ratings of 7 and 8 are considered neutral and do not count as satisfied in the standard method.
Is CSAT a percentage or an average?
The standard CSAT metric is a percentage — specifically, the percentage of respondents who gave a satisfied rating. Some teams also compute the average numeric score across all responses, but this is a separate metric. When someone refers to "CSAT score," the standard meaning is the percentage method.
What counts as a satisfied response in CSAT?
For a 5-point scale: ratings 4 (Satisfied) and 5 (Very Satisfied). For a 10-point scale: ratings 9 and 10. Neutral responses (e.g. rating 3 on a 5-point scale or ratings 7–8 on a 10-point scale) do not count as satisfied. Only explicitly positive responses are included in the numerator.
Can I calculate CSAT online for free?
Yes. This free CSAT score calculator supports 5-point scale, 10-point scale, and custom threshold modes. Enter your response counts and get your CSAT percentage instantly, along with the formula and interpretation. No sign-up or download required.
What is the difference between CSAT and average score?
CSAT percentage tells you what proportion of respondents are satisfied. Average score tells you the mean rating value. They measure different things. A high average score doesn't guarantee a high CSAT percentage — if many responses cluster around neutral ratings, the average can look reasonable while the CSAT percentage remains low.
How should I interpret my CSAT score?
Interpret CSAT relative to your own history and industry context. As a rough guide: below 50% is a concern, 50–74% is fair, 75–84% is good, and 85%+ is excellent — but these thresholds vary by industry, channel, and what the survey question measures. The most reliable benchmark is your own historical trend.
What is the difference between CSAT and NPS?
CSAT measures satisfaction with a specific, recent interaction. NPS measures overall loyalty and the likelihood of recommending your company. CSAT is transactional (used immediately after an event); NPS is relational (used to measure long-term sentiment). Both are useful, but they answer different questions.
What is the difference between CSAT and CES?
CSAT measures how satisfied customers are. CES (Customer Effort Score) measures how easy it was for them to accomplish something. For support interactions, CES is often a stronger predictor of loyalty than CSAT, because ease of resolution correlates closely with churn. Both metrics serve different diagnostic purposes.
How many responses do I need for a reliable CSAT score?
There is no universal minimum, but scores based on fewer than 25–30 responses should be treated as directional only. A single response shifting from 4 to 3 in a sample of 10 can change the score by 10 percentage points. Larger samples (100+) produce more stable scores that are less sensitive to individual outliers.
Can I use CSAT for any type of survey scale?
Yes, but you must define a clear satisfied threshold for your scale and apply it consistently. The calculator's Custom Threshold mode supports any scale. Keep in mind that results from different scales or thresholds cannot be meaningfully compared to each other or to published industry benchmarks that use 5-point or 10-point scales.
How often should I measure CSAT?
For transactional CSAT, the ideal approach is to measure after every qualifying interaction (e.g. every support ticket resolved). This gives you continuous data and a large enough sample over time. Avoid infrequent pulse surveys for CSAT — the metric is most useful as a consistent, ongoing measurement attached to specific interactions.
Note: CSAT scores depend entirely on the scale used, the definition of "satisfied," and the survey question asked. Results from different scales, thresholds, or question wordings cannot be directly compared. For meaningful tracking, keep your methodology consistent over time. Industry benchmark comparisons should be interpreted carefully — published benchmarks vary by source, year, industry, and survey methodology.
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