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📊 NPS Calculator

Calculate your Net Promoter Score instantly — paste any list of 0–10 survey ratings, and get NPS, promoter/passive/detractor counts, percentages, and a visual breakdown.

Paste survey scores (0–10)

About

Net Promoter Score (NPS) is calculated by subtracting the percentage of detractors (scores 0–6) from the percentage of promoters (scores 9–10). Respondents who give a 7 or 8 are passives and do not affect the score. The result ranges from −100 to +100. This calculator accepts any plain-text list of responses separated by commas, spaces, newlines, tabs, or semicolons. Non-numeric values and numbers outside 0–10 are silently ignored, so you can paste raw survey exports without cleaning them first. All computation runs in your browser — no data is sent anywhere.

How to use

  1. Collect your survey responses — any question asking respondents to rate on a 0–10 scale.
  2. Paste the responses into the input box — commas, spaces, newlines, tabs, or semicolons all work as separators.
  3. The calculator instantly shows your NPS and splits respondents into promoters (9–10), passives (7–8), and detractors (0–6) with counts and percentages.
  4. Read the visual bar to see the share of each group at a glance, then use the NPS value to benchmark against industry averages.

FAQ

What is Net Promoter Score?
NPS measures customer or employee loyalty. Respondents scoring 9–10 are promoters, 7–8 are passives, and 0–6 are detractors. NPS = % promoters − % detractors, giving a value from −100 to +100.
What counts as a good NPS?
Generally, above 0 is positive, above 50 is excellent, and above 70 is world-class. Benchmarks vary widely by industry — compare against your own sector for meaningful context.
What happens to invalid or out-of-range values?
Non-numeric text, decimals, and numbers outside 0–10 are silently ignored. Only integers from 0 to 10 are counted, so you can paste raw CSV or spreadsheet data without pre-cleaning.
Is my survey data sent to any server?
No. All calculation happens in your browser with JavaScript. Your responses never leave your device, making this safe for confidential customer or employee data.
Do passives affect the NPS?
Passives (scores 7–8) do not directly contribute to the NPS formula, but they dilute the percentages of promoters and detractors because the denominator is total respondents. A higher passive count can therefore lower the absolute NPS.