Free Tool

Free NPS Calculator (Net Promoter Score)

Calculate your Net Promoter Score in seconds. Paste raw 0-10 scores or enter counts and get benchmarks, distribution charts, and category breakdowns. Free, no signup.

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5x more reviews

4.9 ★ for active stores

One-click setup

Detractors 0-6

Passives 7-8

Promoters 9-10

Scores (0-10, space or comma separated)

+40

Great

An NPS above 30 generally indicates strong customer loyalty.

Detractors (0-6)

0

0% of total

Passives (7-8)

0

0% of total

Promoters (9-10)

0

0% of total

Formula: NPS = % Promoters − % Detractors. Score ranges from -100 (all detractors) to +100 (all promoters).

Calculate your NPS in 10 seconds

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How it Works

Calculate your NPS in 10 seconds

Two ways to compute: enter counts of detractors (0-6), passives (7-8), promoters (9-10), or paste raw survey scores. We categorize automatically and benchmark against SaaS and e-commerce medians.

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Pick your input method

Tab 1: enter counts of detractors, passives, promoters (if you already have them). Tab 2: paste raw 0-10 scores from your NPS survey. We handle categorization.

Click Calculate

Everything runs in your browser. The formula is strict: NPS = % promoters − % detractors. Score ranges from -100 to +100.

Read the verdict + benchmarks

You get the NPS score, a verdict (Critical → Elite), per-category counts with percentages, a visual distribution bar, and a benchmark (Tesla +96, Netflix +68, SaaS median ~30).

FAQ

Your questions, answered.

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What is a good NPS score?

Above 0 is technically positive. Above 30 is great. Above 50 is world-class (Apple, Amazon territory). Above 70 is elite (Tesla, Netflix, Costco). For SaaS the median is ~30; for e-commerce it's ~45.

Why are 7 and 8 considered "passives", not promoters?

NPS methodology (invented by Fred Reichheld at Bain) treats 9-10 as promoters because only those customers will actively recommend you. 7-8 are "satisfied but not enthusiastic", so they won't refer friends, so they're neutralized in the formula.

How many responses do I need for a reliable NPS?

Minimum 30 for rough directional signal. Ideally 100+ per segment (product, tier, country) for 95% confidence. Below 30, individual responses swing the number wildly.

How do I run NPS surveys on my Shopify store automatically?

Reviewz.ai triggers NPS surveys after each Shopify purchase (post-delivery, timed right), routes promoters to leave Trustpilot / Google / Judge.me reviews, and captures detractors privately so you can fix the issue before a 1-star hits the public. Free on Shopify.

Start generating revenue
with reviews.

Turn every purchase into a 5-star review with WhatsApp, SMS,
E-mail, and every reviewer into a repeat customer.

Sign up with Shopify

Book a Demo

5x more reviews

4.9 ★ for active stores

One-click setup

Free NPS Calculator (Net Promoter Score)

Great

Calculate your NPS in 10 seconds

Calculate your NPS in 10 seconds

Pick your input method

Click Calculate

Read the verdict + benchmarks

Your questions, answered.

Start generating revenue with reviews.

Start generating revenue
with reviews.