Free NPS Calculator

Calculate your Net Promoter Score (NPS) instantly. Enter your promoters, passives, and detractors — get your score, classification, and what it means for your business.

Survey responses

On a 0–10 scale: 9–10 = Promoters, 7–8 = Passives, 0–6 = Detractors.

Promoters (9–10)

Passives (7–8)

Detractors (0–6)

NPS Score

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Add responses above

Promoter %

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Passive %

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Detractor %

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Total Responses

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What is Net Promoter Score?

Net Promoter Score (NPS) is the single most-used loyalty metric in business. You ask one question — “How likely are you to recommend us to a friend or colleague, on a scale of 0–10?” — and group answers into Promoters (9–10), Passives (7–8), and Detractors (0–6). NPS is calculated as the percentage of Promoters minus the percentage of Detractors. Scores range from -100 to +100.

Once you have your NPS, the next step is turning Promoters into public testimonials. ShowTrust gives you a hosted submission page to capture their words and an embeddable wall of love to display them on your site — so the customers who already love you become your most powerful marketing.

Hosted Submission Form

Give customers a clean, branded page to leave testimonials in seconds. No login required for them, full control for you.

Embeddable Wall of Love

Drop a single snippet on your site and show off authentic reviews. Auto-updates as new testimonials come in.

Authentic Social Proof

Real testimonials from real customers — no AI-generated fakes, no stock quotes. Build trust the right way.

Free in Early Access

Collect unlimited testimonials and embed your wall of love for free while we're in early access. Sign up takes 30 seconds.

Ready to Collect Real Testimonials?

ShowTrust gives you a hosted submission page and an embeddable wall of love. Authentic social proof in minutes — free while in early access.

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Who Uses NPS?

From two-person startups to Fortune 500s.

SaaS Founders

Track loyalty cohort-by-cohort and catch drops before churn shows up in revenue.

CX Teams

Benchmark satisfaction across products, regions, and account tiers.

Product Managers

Tie NPS movement to release cycles to learn what users actually love.

Customer Success

Flag detractors automatically and convert promoters into case studies.

Agencies & Consultants

Prove client value with a hard number rather than vibes.

E-commerce Owners

Measure post-purchase loyalty and identify your repeat-buyer engine.

Marketing Teams

Use NPS as a leading indicator of word-of-mouth and organic growth.

Investors & Operators

Diligence on a portfolio with a comparable, industry-standard metric.

Frequently Asked Questions

How is NPS calculated?

NPS = % Promoters − % Detractors. Promoters answered 9 or 10 to “how likely are you to recommend us”, Detractors answered 0 to 6, and Passives (7–8) are excluded from the math. The resulting score can range from -100 to +100.

What is a good NPS score?

Any positive NPS is generally considered acceptable. Above 30 is good, above 50 is excellent, and above 70 is world-class. But benchmarks vary by industry — SaaS averages ~30, while financial services often sit closer to 20.

How many responses do I need for NPS to be meaningful?

As a rule of thumb, you want at least 100 responses for a stable score, and 300+ for slicing by segment. With fewer than 30 responses, treat the number as directional only.

When should I send an NPS survey?

Two common approaches: relational (every 3–6 months to all customers, for a steady pulse) and transactional (right after a key event like onboarding, support resolution, or first month of use).

How is NPS different from CSAT and CES?

NPS measures loyalty and word-of-mouth intent. CSAT (Customer Satisfaction) measures satisfaction with a specific interaction. CES (Customer Effort Score) measures how hard a customer had to work to get an outcome. Many teams track all three.

How do I turn high NPS into testimonials?

Trigger a follow-up to every Promoter asking for a testimonial. ShowTrust automates this: send Promoters to your hosted submission page, then embed the resulting wall of love on your site — free while in early access.

More Free Tools from ShowTrust

Free, no-signup tools to help you collect, measure, and show off your customer love.

CSAT Calculator

Calculate Customer Satisfaction Score from survey responses in seconds.

CES Calculator

Measure how much effort customers put in to get an answer or outcome.

Churn Rate Calculator

Calculate customer churn and retention rates for any period.

CLV Calculator

Estimate Customer Lifetime Value with the standard formula.