What Is Net Promoter Score (NPS)?
Net Promoter Score (NPS) measures how likely your customers are to recommend your business, product, or service to others. It’s built around a single question:
“On a scale of 0–10, how likely are you to recommend us to a friend or colleague?”
NPS is the relationship metric of the CX trio. Where CSAT captures satisfaction with a specific interaction and CES measures the effort inside a specific task, NPS zooms out: it predicts loyalty, word-of-mouth, and growth by asking about the relationship as a whole. Recommendation intent correlates strongly with retention and referrals, which is why NPS has become the standard boardroom loyalty number — and why it’s most valuable when tracked as a trend, not taken as a snapshot.
Calculate Your NPS
Every response lands in one of three segments:
| Segment | Scores | Meaning |
|---|---|---|
| Promoters | 9–10 | Loyal enthusiasts who will keep buying and refer others |
| Passives | 7–8 | Satisfied but unenthusiastic — vulnerable to competitors |
| Detractors | 0–6 | Unhappy customers who can damage growth through churn and negative word-of-mouth |
The formula:
NPS = % Promoters − % Detractors
The result is a whole number between −100 and +100.
Worked example. Say 100 customers answered the recommendation question:
| Score | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Responses | 1 | 0 | 1 | 1 | 2 | 3 | 5 | 12 | 29 | 28 | 18 |
- Promoters (9–10) = 28 + 18 = 46 → 46.0%
- Passives (7–8) = 12 + 29 = 41 → 41.0%
- Detractors (0–6) = 13 → 13.0%
NPS = 46% − 13% = +33
How to use the calculator:
- Enter how many responses each score received — from 0 to 10. You don’t need individual responses, just the count per score.
- Read your results: your NPS with a rating label, plus the counts and percentages for each segment and your total response count.
The calculator won’t compute until you’ve entered at least one response.
What Is a Good NPS Score?
The calculator labels your result using these bands:
| NPS | Label |
|---|---|
| 70+ | Excellent |
| 50–69 | Great |
| 30–49 | Good |
| 0–29 | Needs Improvement |
| Below 0 | Critical |
Context for reading them:
- Any positive score means more promoters than detractors — directionally healthy. Below zero, your unhappy customers outnumber your enthusiastic ones, and that’s an urgent signal.
- 30–50 is a realistic target zone for many businesses; 50+ is genuinely strong; 70+ is exceptional and rare outside niche, high-affinity audiences.
- Your trend is the real benchmark. A 33 that’s climbing across quarters beats a 45 that’s slipping. Published “industry average NPS” figures vary wildly by methodology and sample, so treat external comparisons loosely and compare against yourself, segmented by product line or touchpoint.
- Sample size matters more for NPS than for the other metrics. Because the score is a difference of two percentages, a handful of new responses can swing it by several points on small samples. Avoid over-reading movements under ~50 responses.
The Score Hides the Mix — Read the Breakdown
Two businesses can both post an NPS of 30 and be in completely different situations:
| Business A | Business B | |
|---|---|---|
| Promoters | 35% | 55% |
| Passives | 60% | 20% |
| Detractors | 5% | 25% |
| NPS | +30 | +30 |
Business A is passive-heavy: nobody is angry, but nobody is enthusiastic either — one aggressive competitor could flip the whole base. Business B has a real promoter engine and a real detractor problem: high stakes in both directions.
That’s why the calculator reports the full segment breakdown, not just the score. Use it to choose your play: a passive-heavy mix calls for improving the product experience and creating moments worth talking about; a detractor-heavy mix calls for finding and fixing root causes before anything else. And watch the edges of the detractor band — a cluster at 6 (“mostly fine, not excited”) needs different treatment than a cluster at 0–2. The per-score input preserves that detail; averages and scores flatten it.
A note on passives: they don’t appear in the formula, but they’re not invisible — they count toward the total, which dilutes both promoter and detractor percentages. A growing passive share pulls your NPS toward 0 even if promoter and detractor counts stay flat. Watch the passive percentage as its own signal: rising passives with a flat NPS is an early warning, not stability.
NPS vs CSAT vs CES
The three standard CX metrics, measured with their own calculators:
| Metric | Measures | Key question | Best used | Calculate with |
|---|---|---|---|---|
| NPS | Overall loyalty and advocacy | “How likely are you to recommend us?” | Periodically, relationship-level | This calculator |
| CSAT | Satisfaction with an interaction | “How satisfied were you?” | After any specific interaction | CSAT calculator |
| CES | Ease of a specific interaction | “How easy was it to get this done?” | After a task: support, onboarding, checkout | CES calculator |
They’re complements, not competitors. NPS tells you how the relationship is doing, CSAT tells you how an interaction landed, and CES tells you where the friction lives. Many teams run all three: CES and CSAT continuously at touchpoints, NPS as a periodic pulse — just keep each in its own survey or clearly separated in a flow.
How to Run an NPS Survey That Gets Answers
- Pick your cadence: relationship or transactional. Relationship NPS goes to your whole base on a fixed rhythm (e.g., quarterly) and measures the brand overall. Transactional NPS fires after a key moment — onboarding completion, purchase, support resolution. Both are valid; don’t blend their data, because they measure different things.
- One question per page. A single-question, one-screen survey gets dramatically higher completion rates than a questionnaire bolted onto an email. This is exactly the flow Formware is built for, and the NPS question type gives you the 0–10 scale out of the box.
- Always ask “why” — conditionally. With conditional logic, follow up based on the score: “What’s the main reason for your score?” to everyone, or a tailored version for promoters (“What do you love most?”) vs detractors (“What can we fix?”). NPS scores are valid condition sources, so the routing is exact.
- Get alerted to detractors in real time. Set up self-notifications so every 0–6 score lands in your inbox the moment it’s submitted — while the relationship can still be saved. This is where NPS stops being a report and starts being a retention tool.
- Close the loop on both ends. Follow up personally with detractors and fix what they described. Just as important: activate your promoters — invite reviews, testimonials, referrals, case studies. An NPS program that only handles complaints wastes half its data.
- Never change the scale or question mid-stream. NPS is a trend metric. Rewording the question or rescaling breaks every comparison you’ve built.
When to Measure NPS
Relationship NPS — periodically, across your customer base — is the classic deployment. Transactional NPS works after moments that shape the relationship:
- After onboarding — did the first weeks create an advocate or a doubt?
- Post-purchase or post-delivery — the moment enthusiasm peaks or dies
- After support resolution — problems resolved well often create promoters; measure it
- Around major product changes — did the update build loyalty or burn it?
For a fast read on a specific interaction’s satisfaction, use CSAT instead; for friction inside a process, use CES. NPS is for the relationship-level question.
Start Measuring Loyalty, Not Just Traffic
The calculator turns responses into a score — first you need responses. The customer advocacy use case guide shows how to turn promoters into reviews and referrals, or browse the feedback form templates for ready-made options. The NPS survey template in the grid below copies straight into your account — edit, publish, and start collecting in minutes.
Frequently Asked Questions
How is NPS calculated?
Classify every response: scores 9–10 are promoters, 7–8 are passives, 0–6 are detractors. Then NPS = % promoters − % detractors. With 46 promoters, 41 passives, and 13 detractors out of 100 responses: 46% − 13% = +33. The calculator rounds the final score to a whole number.
What should I do with my detractors?
Set up real-time notifications so you know immediately when one comes in, follow up personally to understand the root cause, and fix the underlying issue — not just the ticket. Then measure whether the next wave’s detractor share falls. And don’t forget the promoters: the same survey that finds your unhappy customers finds your best referral sources.
Is this NPS calculator free?
Yes — completely free, no signup required. If you also want to collect NPS responses, the survey template below is free to copy into a Formware account too.
What is a good NPS score?
The calculator’s labels: 70+ is Excellent, 50–69 Great, 30–49 Good, 0–29 Needs Improvement, and below 0 Critical. Any positive score means promoters outnumber detractors. Because published industry benchmarks vary widely in methodology, your own trend — segmented by product or touchpoint — is the most meaningful comparison.
What are promoters, passives, and detractors?
Promoters (9–10) are enthusiastic loyalists likely to recommend you and keep buying. Passives (7–8) are satisfied but unenthusiastic — easily won by competitors. Detractors (0–6) are unhappy customers at risk of churning and sharing negative word-of-mouth.
Why don't passives count in the formula?
Only promoters and detractors move the score — but passives still count toward the total, which dilutes both percentages. That’s deliberate in the NPS methodology: passives represent neutral sentiment, and their share is worth watching separately. A rising passive percentage with a flat NPS often signals a base that’s quietly cooling.
Can NPS be negative?
Yes. The score ranges from −100 (every respondent a detractor) to +100 (every respondent a promoter). A negative score means unhappy customers outnumber enthusiastic ones — treat it as an urgent signal to find and fix root causes, not as a reason to stop measuring.
Why should I look at the segment breakdown instead of just the score?
The same NPS can hide very different situations: 35% promoters / 5% detractors is a passive-heavy base that’s up for grabs; 55% promoters / 25% detractors is a polarized base with both a growth engine and a churn problem. The calculator shows counts and percentages for all three segments — use them to decide whether your priority is exciting the middle or rescuing the bottom.
My NPS jumps around a lot between surveys. Why?
Sample size. NPS is a difference of two percentages, so small samples make it volatile — a few responses can move the score by several points. With fewer than ~50 responses, focus on the direction of the trend across multiple waves rather than the movement between two.
Does this calculator have industry benchmarks?
No — deliberately. Published “average NPS by industry” figures vary so much by methodology that they invite false conclusions. The calculator uses fixed rating bands instead, and the most reliable benchmark is your own score’s trend over time. If you want an industry reference comparison for a satisfaction metric, the CSAT calculator includes one.
NPS vs CSAT vs CES — which should I use?
NPS for overall loyalty measured periodically, CSAT for satisfaction after specific interactions, CES for friction inside a process. They complement each other — many teams run all three. Calculate the others with the CSAT calculator and CES calculator.
