NPS vs CSAT vs CES: which customer feedback metric should you track?

There are three numbers most teams end up arguing about — NPS, CSAT and CES — and the argument is usually the wrong one. They are not rivals competing to be the one true score. They answer three different questions: would customers recommend you (NPS), were they happy with this specific thing (CSAT), and how hard did you make them work (CES).

Pick the wrong one and you measure something that doesn’t move when you improve, or improve something that doesn’t show up in the number. This guide covers what each metric actually measures, how to calculate it, and how to decide which to run — with worked examples you can copy.

The three questions these metrics answer

Every customer feedback metric is a shortcut — it compresses a messy feeling into a number you can track. The three most common ones compress three different feelings:

• NPS (Net Promoter Score) asks about the whole relationship: are you worth recommending?

• CSAT (Customer Satisfaction Score) asks about a single interaction: was this good?

• CES (Customer Effort Score) asks about friction: was this easy?

A business that only tracks one of these has a blind spot. A high NPS with a terrible CES means people love your brand but dread dealing with your support team — and that gap is exactly where churn starts. So before you pick, understand what each one is really telling you.

NPS — loyalty across the whole relationship

Net Promoter Score was introduced by Fred Reichheld and Bain & Company in a 2003 Harvard Business Review article, and it has become the most widely used loyalty metric in business. It is built on one question:

“How likely are you to recommend us to a friend or colleague?” — answered on a 0–10 scale.

Responses split into three groups:

• Promoters (9–10) — loyal, and the source of most referrals.

• Passives (7–8) — satisfied but not attached. They’ll switch for a better offer.

• Detractors (0–6) — unhappy, and likely to say so to other people.

The formula: NPS = % Promoters − % Detractors. Passives are left out of the subtraction but still counted in the total. The result is a plain number between −100 and +100 — not a percentage, so write it as “+40”, never “40%”.

Worked example: 200 responses — 120 promoters, 40 passives, 40 detractors. Promoters are 60%, detractors are 20%. NPS = 60 − 20 = +40.

NPS is best as a relationship signal: send it on a fixed cycle (quarterly or twice a year) to a broad sample, and watch the trend. Its weakness is that it’s a single number — very different customer bases can produce the same score — so it tells you whether loyalty moved, never why. That’s what the open follow-up question is for. If you want the exact bands and how to read your own number, see our NPS calculator, and [what counts as a good NPS score][SPOKE: what-is-a-good-nps-score].

CSAT — satisfaction with one specific moment

CSAT is the oldest and most flexible of the three. There’s no single inventor — it grew out of decades of customer satisfaction research — and it measures exactly what it says: how satisfied someone was with a specific thing. A product, a delivery, a support ticket, a visit.

The question is usually some version of:

“How satisfied were you with [the thing]?” — on a 1–5 scale (often stars, sometimes emoji).

The standard method is “top-two-box”. You count the people who gave the top two ratings (4 and 5, or “satisfied” and “very satisfied”), divide by total responses, and express it as a percentage.

Worked example: 500 people answer. 410 gave a 4 or 5. CSAT = 410 ÷ 500 × 100 = 82%.

CSAT’s strength is that it’s specific and immediate — you know exactly what the respondent is reacting to, so a low score points straight at the thing to fix. Its weakness is that it’s event-bound and a little soft: satisfaction is easy to give and doesn’t predict loyalty the way a recommendation does. Send it right after the moment you’re measuring — a day later and you’re measuring memory, not experience. See the CSAT calculator and the customer satisfaction survey template to run one.

CES — how much effort it took

Customer Effort Score is the newest of the three and the least used in India — which is a missed opportunity, because for support and service journeys it predicts repeat business better than satisfaction does. It was introduced by the Corporate Executive Board (now Gartner) in the 2010 Harvard Business Review article “Stop Trying to Delight Your Customers,” whose argument was blunt: customers don’t reward you for delighting them, they punish you for making things hard.

The modern wording (sometimes called CES 2.0) puts the effort on the company, not the customer:

“[Company] made it easy for me to handle my issue” — on a 1–7 agree/disagree scale.

How to read it: you can report CES as the average score, or as the percentage of people who “agree” (the top ratings) — the easy-experience share. A higher number is better.

Worked example: on a 1–7 scale, 300 respondents average 5.6. Or, put another way, 78% chose 5, 6 or 7 — so roughly four in five found it easy.

Use CES right after an effortful moment — a resolved support ticket, a checkout, an onboarding step, a return. It’s the sharpest of the three at telling you where a process is quietly costing you customers. Its limit is scope: it measures ease, not overall feeling or loyalty, so it’s a scalpel, not a thermometer. The CES calculator and customer effort score template have the full method.

Which one should you use?

Short answer: start with the one that matches the decision you’re trying to make.

• You want a board-level loyalty trend → NPS. One number, tracked over time, that leadership understands.

• You want to find and fix weak touchpoints → CSAT. Satisfaction per interaction tells you which moment is letting customers down.

• You run support, bookings or checkout, and want to cut churn → CES. If handling an issue is hard, people leave regardless of how much they like your brand.

For most small and mid-sized Indian businesses, the honest advice is: start with one, run it properly, act on it — then add a second. A CSAT survey after every service, or an NPS twice a year, is worth far more than three half-tracked metrics nobody reviews. If you’re not sure you’re even collecting the right feedback yet, start with what customer feedback is and why it matters.

Whichever you pick, the score is only as good as your response rate — and in India that’s won on distribution: a WhatsApp invite and a QR code on the bill beat an email nobody opens. More on that in [how to improve your survey response rate][SPOKE: how-to-improve-survey-response-rate].

How they fit together

Mature feedback programmes don’t choose one forever. They layer:

1. CES fires right after key interactions — a closed ticket, a completed booking — to catch friction while it’s fixable.

2. CSAT runs on specific touchpoints to score the experience of each one.

3. NPS runs on a cycle across the whole base to track whether all of that is adding up to loyalty.

Read together, they tell a story a single metric can’t: people are loyal (NPS), they’re happy with the product (CSAT), but support is hard work (CES) — fix support before it eats the loyalty. The key is to keep each one’s method and timing consistent, so a change in the number means a change in reality, not a change in how you asked.

Every one of these pairs a scored question with one open follow-up — “what’s the main reason for your score?” — because the number tells you what moved and the open answer tells you why. SurveyKar scores all three automatically as responses arrive, with live trends and sentiment on the open text, so you’re acting on feedback instead of maintaining a spreadsheet.

Frequently Asked Questions

What’s the difference between NPS and CSAT?

NPS measures loyalty across the whole relationship — likelihood to recommend — on a 0–10 scale. CSAT measures satisfaction with one specific interaction, usually on a 1–5 scale. NPS tells you about the relationship; CSAT tells you about a moment.

Is CES better than CSAT?

Neither is better — they measure different things. CES (effort) is a stronger predictor of repeat business for support and service journeys, while CSAT (satisfaction) is more flexible and works for any touchpoint, including ones where effort isn’t the point.

Can I use all three?

Yes, and mature programmes do — CES after effortful interactions, CSAT on specific touchpoints, NPS on a cycle across the whole base. Just keep each one’s question, scale and timing consistent so the trend stays meaningful.

Which metric is best for a small business?

Start with one you’ll actually act on. A CSAT survey after each service or an NPS twice a year, reviewed and acted on, beats tracking all three and ignoring them. Add a second metric once the first is a habit.

Are these the only customer feedback metrics?

No — there’s also CSAT by channel, retention, churn rate and others. But NPS, CSAT and CES are the three survey-based metrics most teams start with, because each maps to a clear question and a clear action.

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Templates - NPS survey template - Customer satisfaction survey template - Customer effort score survey template

Calculators - NPS calculator - CSAT calculator - CES calculator

Product - Survey & feedback software · WhatsApp surveys

Customer Feedback Metrics: NPS vs CSAT vs CES