How to calculate CSAT
CSAT = (positive responses / total responses) × 100. "Positive" usually means a 4 or 5 on a 5-point scale, or "good" on a good/bad scale. Teams typically survey after a conversation closes.
CSAT vs NPS vs CES
CSAT measures satisfaction with one interaction. NPS measures overall loyalty (likelihood to recommend the company). CES measures effort (how easy was it to get the issue resolved). All three are useful; CSAT is the easiest to act on for support teams.
CSAT benchmarks
For B2B SaaS support, 90%+ is best-in-class, 80-90% is good. For ecommerce, 85%+ is good. Response rates of 20-30% on post-conversation surveys are typical.