Short answer: CSAT measures how happy a customer is with one specific interaction, such as a support ticket or an onboarding call, and is reported as the percentage of people who rate you positively. NPS measures how loyal a customer is to your company overall, scored from -100 to +100 based on how likely they are to recommend you. Use CSAT to fix individual touchpoints and NPS to watch the relationship over time. Most mature programs run both.
Last updated: July 2026.
CSAT and NPS get treated as interchangeable customer happiness scores, and that is where teams go wrong. They answer different questions, they are collected at different moments, and they drive different decisions. Pick the wrong one and you will either miss a broken touchpoint or chase a number that does not tell you what to fix. Here is how they actually differ, when to use each, and why running both is usually the right call.
What CSAT measures
CSAT (Customer Satisfaction Score) captures how satisfied a customer was with a single, specific experience. You ask it right after something happens: a support conversation closes, an order ships, a feature ships, an onboarding session ends. The classic question is "How satisfied were you with [the thing that just happened]?" on a 1 to 5 scale, and the score is the percentage of respondents who picked the top ratings.
Because it is tied to one moment, CSAT is a tactical, operational metric. A low CSAT on your billing flow tells you the billing flow is the problem. That precision is its strength. Our guide to calculating your CSAT score walks through the exact formula and survey timing.
What NPS measures
NPS (Net Promoter Score) captures how loyal a customer feels toward your company as a whole. The single question is "How likely are you to recommend us to a friend or colleague?" on a 0 to 10 scale. It is a relationship metric, not a transaction metric, so you send it on a cadence (quarterly, or after a customer has had time to form an opinion) rather than immediately after one event.
NPS predicts advocacy and, loosely, growth: promoters refer, detractors warn people away. It is the most benchmarkable of the common metrics because the question and scale are standardized across companies and industries. The trade-off is that a falling NPS rarely tells you what broke; it tells you the overall relationship is cooling. See our full breakdown of how NPS is calculated and what a good score looks like.
CSAT vs NPS vs CES at a glance
| CSAT | NPS | CES | |
|---|---|---|---|
| Question | How satisfied were you? | How likely are you to recommend us? | How easy was it to get your issue resolved? |
| Measures | Satisfaction with one interaction | Loyalty to the whole company | Effort of a specific task |
| Timeframe | Transactional (right after) | Relational (periodic) | Transactional (right after) |
| Scale | 1 to 5 (or 1 to 3) | 0 to 10 | 1 to 5 or 1 to 7 agreement |
| Output | Percentage positive (0 to 100%) | Score from -100 to +100 | Average effort score |
| Best for | Fixing specific touchpoints | Tracking overall health and advocacy | Predicting churn and reducing friction |
| Cross-industry benchmarks | Weak (varies by sector) | Strong (standardized) | Weak |
CES (Customer Effort Score) is the third metric people ask about. It measures how hard a customer had to work to get something done, and it is a strong churn predictor for support and self-service. We cover it in the CES guide.
The math, side by side
The two scores are calculated in genuinely different ways, which is part of why comparing the raw numbers is meaningless.
CSAT. Take the number of positive responses (usually the top two boxes on a 5-point scale, so 4s and 5s), divide by total responses, multiply by 100. If 170 of 200 respondents rated you 4 or 5, your CSAT is 85%.
NPS. Sort responses into promoters (9 to 10), passives (7 to 8), and detractors (0 to 6). Subtract the percentage of detractors from the percentage of promoters. If 55% are promoters and 15% are detractors, your NPS is +40. Passives count toward the total but not the score.
An 85% CSAT and a +40 NPS are not on the same scale and cannot be averaged, ranked against each other, or plotted on one axis. They are separate instruments reading separate things.
When to use CSAT
Reach for CSAT when you want to know whether a specific process is working and you want an answer you can act on this week. Good triggers include:
- After a support ticket is resolved, to grade that interaction and the agent.
- After onboarding milestones, to catch friction while a new customer is still forming an opinion.
- After a billing or renewal event, to protect the money moments.
- After a new feature or a redesigned flow ships, to see if it landed.
CSAT shines in back-office and operations work because it maps cleanly onto the touchpoints you own and can change.
When to use NPS
Reach for NPS when you want a durable read on the relationship and a number you can compare to peers and to your own trend line over quarters. Good uses include:
- Tracking overall account health across your customer base over time.
- Segmenting promoters (for referrals and case studies) from detractors (for save plays).
- Reporting to leadership and investors, who recognize the standardized scale.
- Spotting a cooling relationship before renewal, so account teams can intervene.
Pair NPS with a follow-up "What is the main reason for your score?" free-text field. The number tells you the temperature; the comment tells you why, and that is what a voice of customer program is built to route and close.
Benchmarks: what counts as good
For NPS, anything above 0 means you have more promoters than detractors. Above +50 is widely considered excellent, and +70 or higher is world-class, though the bar shifts a lot by industry. For CSAT, above 80% is generally considered good, roughly 70% to 85% is a healthy band for most sectors, and consistently above 85% is exceptional and hard to sustain. Treat every benchmark as a starting point: your own trend, measured with a consistent question and audience, is more useful than a cross-industry average. NPS is the more comparable of the two because its question and scale are standardized; CSAT and CES vary enough by industry and survey wording that borrowed benchmarks can mislead.
What is the difference between CSAT and NPS?
CSAT measures satisfaction with one specific interaction and is reported as a percentage of positive responses, while NPS measures loyalty to the company overall and is reported as a score from -100 to +100. CSAT is collected right after an event and is used to fix individual touchpoints; NPS is collected periodically and is used to track the relationship and predict advocacy. They answer different questions and are not comparable numbers.
Is NPS better than CSAT?
Neither is better; they serve different jobs. NPS is stronger for tracking long-term loyalty, benchmarking against other companies, and reporting to leadership because its scale is standardized. CSAT is stronger for diagnosing and fixing a specific broken step because it ties directly to one interaction. If you can only run one to start, choose the metric that matches the decision you need to make. Most teams eventually run both.
Can you use CSAT and NPS together?
Yes, and the best programs do. Use transactional CSAT to grade and fix individual touchpoints as they happen, and use relationship NPS on a quarterly cadence to watch overall health and advocacy. Together they give you both the tactical view (which step is broken) and the strategic view (is the relationship getting warmer or colder). Feed both, plus their free-text comments, into one voice of customer program so the signals connect instead of living in separate dashboards.
Where does CES fit in?
CES sits alongside CSAT as a transactional metric, but it measures effort rather than satisfaction. It asks how hard a customer had to work to get an issue resolved, and low-effort experiences correlate strongly with retention. Many support teams track CES on resolved tickets as an early churn warning, CSAT to grade the same interaction, and NPS quarterly for the relationship. All three belong in the same customer service metrics stack.
Which one should you start with?
If your priority is operational (support quality, onboarding, billing), start with CSAT because it points at the exact thing to fix. If your priority is strategic (retention, advocacy, board reporting), start with NPS. Then add the second metric once the first is running cleanly. The goal is not to pick a winner; it is to know which number answers the question in front of you. When you are ready to design the surveys themselves, the customer satisfaction survey question templates cover wording and timing for both.