All Access tool

CSAT & NPS survey calculator

Is 82% CSAT really better than last month’s 79%? How many survey responses make a number trustworthy? Plain-English answers with the statistics done properly.

CSAT: how precise is it?

Surveys sent optional

Responses

Satisfied responses e.g. 4–5 of 5

Confidence

CSAT

–

Margin of error

–

Response rate

–

NPS: how precise is it?

Promoters 9–10

Passives 7–8

Detractors 0–6

Confidence

NPS

–

Margin of error

–

Responses

–

How many responses do I need?

Measure

Target margin ± points

Expected CSAT %

Confidence

Your response rate %

Customers served in the period optional

– responses

Did it really change?

Compare

Last period: satisfied

Last period: responses

This period: satisfied

This period: responses

Trend from your survey results

Paste or import one row per response (date, score) or per group (date, score, count). Scores 1–5 are read as CSAT (4–5 = satisfied); 0–10 as NPS.

Import CSV

Survey results