Nps Formula
The Net Promoter Score (NPS) formula calculates customer loyalty by subtracting the percentage of detractors from the percentage of promoters, providing a key indicator of growth potential.
Formula
Copy the exact expression or work through it step by step below.
NPS = Promoters Percent - Detractors Percent Variables
NPS
NPS
The nps value plugged into the nps calculation.
PP
Promoters Percent
The promoters percent value plugged into the nps calculation.
DP
Detractors Percent
The detractors percent value plugged into the nps calculation.
Step By Step
- 1
Set the baseline case with the real calculator inputs.
Promoters = 120, Passives = 45, Detractors = 35, Industry = SaaS
- 2
Translate rates, periods, and cash values onto the same footing before combining them.
Keep the nps assumptions consistent instead of mixing monthly and annual views.
- 3
Apply the formula and read the first calculator outputs, not just the headline assumption.
The calculator lands with total responses at 200 and nps score at 42.5.
- 4
Run one changed scenario so the formula is stress-tested before it is trusted.
The net promoter score calculator page is the fastest way to compare that second case.
Worked Example
Nps sample case
Promoters
120
Passives
45
Detractors
35
Industry
SaaS
NPS = Promoters Percent - Detractors Percent using promoters 120, passives 45, detractors 35, industry SaaS.
The calculator lands with total responses at 200 and nps score at 42.5.
Common Variations
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Sources & References
- The Ultimate Question 2.0: How Net Promoter Companies Thrive in a Customer-Driven World — Harvard Business Review Press
- What is a good Net Promoter Score? Benchmarks, best practices, and more — Bain & Company
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