How to Calculate NPS

What is NPS?

Net Promoter Score (NPS) measures customer loyalty with a single 0–10 question. Promoters (9–10) minus Detractors (0–6) gives a score from −100 to +100. Above 50 is considered excellent.

Formula

NPS = (Promoters% − Detractors%) | Score 9–10 = Promoter; 7–8 = Passive; 0–6 = Detractor

Step-by-Step Guide

1Classify: Promoters (9–10), Passives (7–8), Detractors (0–6)
2NPS = % Promoters − % Detractors
3Passives are not counted in the score
4Benchmark: > 50 excellent; 0–49 good; < 0 needs work

Worked Examples

Input

60 Promoters, 25 Passives, 15 Detractors (n=100)

Result

NPS = 60% − 15% = 45 (Good)

Frequently Asked Questions

What is Net Promoter?

Net Promoter Score (NPS) measures customer loyalty with a single 0–10 question. Promoters (9–10) minus Detractors (0–6) gives a score from −100 to +100

How accurate is the Net Promoter calculator?

The calculator uses the standard published formula for net promoter. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Net Promoter calculator use?

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Net Promoter calculator use?

The core formula is: NPS = % Promoters − % Detractors. Each step in the calculation is shown so you can verify the result manually.

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