How to Calculate Your Net Promoter Score(NPS)

Introduction

Net Promoter Score (NPS) is key for gauging customer loyalty and growth. It shows how likely customers are to recommend a brand, and calculating it right helps turn feedback into action. For any business, learning to calculate NPS well uncovers insights for better customer relationships.

What Is NPS and Why Calculate It?

NPS comes from the question: “On a 010 scale, how likely are you to recommend our product/service?” Responses categorize customers:

Promoters (910): Loyal advocates.

Passives (78): Satisfied but not loyal.

Detractors (06): Unhappy, potential critics.

The NPS formula is simple: subtract the percentage of detractors from promoters. For example, 45% promoters minus 15% detractors gives an NPS of 30. This score (100 to 100) quickly shows customer sentiment, guiding efforts to boost loyalty.

How to Calculate NPS Accurately

1.Collect Responses

Use NPS survey questions to gather data. Tools like SurveyMars simplify this—its survey builder lets you add the core NPS question and followups (e.g., “What influenced your score?”) for context.

2.Categorize Respondents

Sort responses into groups. If 200 customers respond, 90 promoters (45%) and 30 detractors (15%) are clear to identify.

3.Apply the Formula

Use NPS = (% Promoters) – (% Detractors). Here, 45% – 15% = 30.

Using NPS to Optimize Service: A Case Example

Brew&Co, a midsized coffee chain, used SurveyMars to calculate NPS monthly. Their initial NPS was 22, with 20% detractors citing “slow service.”

They optimized service by adding selforder kiosks and training staff. Six months later, NPS rose to 41—detractors dropped to 8%, promoters up 15%. Promoters even recommended the chain, driving new customers.

Manual calculation works for small surveys, but SurveyMars automates the process—sorting responses, applying the formula, and generating reports. It lets you focus on acting on insights, not crunching numbers. Ready to calculate NPS and boost loyalty? Try SurveyMars.