Calculate your NPS score

NPS Calculator Review (2026): Free, Instant Net Promoter Score Tool

Introduction

Measuring customer loyalty is essential for business growth — and the Net Promoter Score (NPS) remains one of the most trusted benchmarks worldwide. But manually calculating NPS from survey responses is error-prone and time-consuming. That’s where the NPS Calculator by Softr comes in: a clean, free, web-based utility that delivers your score in seconds — no installation, no email required. In this hands-on review, we break down how it works, who should use it, and whether it’s truly reliable for real-world decision-making.

What is NPS Calculator?

The NPS Calculator is a minimalist, browser-based tool hosted on Softr that computes your Net Promoter Score using the standard formula:

NPS = % of Promoters − % of Detractors
(Passives are counted in the denominator but do not affect the score directly)

Users simply input three numbers — the counts of Detractors (0–6), Passives (7–8), and Promoters (9–10) from their NPS survey — and the tool instantly returns a score between −100 and +100.

It’s ideal for founders, marketers, product managers, and CX teams who need rapid validation without logging into dashboards or spreadsheets.

Key Features of NPS Calculator

• ✅ 100% Free & No Signup — No hidden paywalls, trials, or data collection.
• ✅ Instant Calculation — Real-time score update as you type or adjust numbers.
• ✅ Mobile-Responsive UI — Works smoothly on phones, tablets, and desktops.
• ✅ Zero-Party Data Friendly — No data is stored or transmitted; computation happens locally in-browser.
• ✅ Clear Visual Layout — Intuitive form with labeled input fields and prominent result display.

No advanced analytics or benchmarking is included (e.g., industry comparisons aren’t dynamically pulled), but the tool stays true to its core purpose: delivering an accurate, fast NPS number.

How to Use NPS Calculator (Step-by-Step)

1. Go to https://www.softr.io/tools/nps-calculator
2. Enter the number of Detractors (customers who rated 0–6)
3. Enter the number of Passives (ratings 7–8)
4. Enter the number of Promoters (ratings 9–10)
5. Your NPS score appears instantly below (e.g., Your score: 30)

💡 Example: With 60 Promoters, 25 Passives, and 15 Detractors →
Total = 100 | %Promoters = 60% | %Detractors = 15% | NPS = 60 − 15 = 45

Use Cases / Who Should Use This Tool

• 📊 Startups validating early product-market fit via quick customer surveys
• 🛠️ Freelancers & consultants reporting NPS to clients without premium tools
• 📈 Marketing teams auditing campaign impact on customer sentiment
• 📚 Students & educators teaching customer experience metrics
• 🔍 UX researchers analyzing post-test feedback from usability studies

It’s not suited for longitudinal tracking or team collaboration — but for a one-off, trustworthy calculation, it excels.

Pros and Cons

Is NPS Calculator Free?

Yes — 100% free, forever. There are no premium tiers, ads, watermarks, or registration walls. The tool is publicly accessible and built on Softr, likely as a community resource.

Alternatives

• Delighted NPS Calculator (free web version, but collects email for full access)
• SurveyMonkey Analyze (built-in NPS scoring — requires survey creation & account)
• Google Sheets NPS Template (manual setup but customizable for tracking over time)

For pure simplicity and privacy, Softr’s version stands out.

Final Verdict

⭐ 4.6 / 5 — The NPS Calculator is a rare example of a single-purpose utility done right. It respects user time, requires zero onboarding, and delivers mathematically accurate results — all while protecting privacy. Though it lacks advanced features, that’s by design: it solves one job exceptionally well.

We recommend it as a go-to bookmark for anyone running NPS surveys — especially solopreneurs and small teams prioritizing speed and simplicity over analytics depth.

FAQ

Q1: How is NPS calculated?
A: NPS = (% of respondents who scored 9–10) − (% who scored 0–6). Scores range from −100 (all detractors) to +100 (all promoters).

Q2: Do I need to create an account?
A: No. The tool works instantly — no login, no cookies, no tracking.

Q3: Is my data saved or sent to a server?
A: No. All calculations happen in your browser. Nothing is stored or transmitted.

Q4: Can I use this for official reporting?
A: Yes — as long as you input correct survey counts. The math follows the official NPS methodology.

Q5: What’s a “good” NPS score?
A: Industry benchmarks vary, but generally:
• > 50 = Excellent
• 30–50 = Good
• 0–30 = Room for improvement
• < 0 = Critical — prioritize detractor feedback