How We Rate Ergonomic Chairs

Every chair on ErgoChairs.in receives an Ergo Score from 0 to 100, computed entirely from manufacturer specifications. No opinions. No sponsorships. No "we sat in it for a week." Just data.

Why Deterministic Scoring?

Most review sites rate chairs based on subjective experience, like "it felt supportive" or "we liked the build quality." That's fine for one reviewer's body type, but useless for yours. Our scoring uses the same formula for every chair, based on measurable specifications that matter for ergonomic support.

The Ergo Score answers: "How much ergonomic adjustability and support does this chair's hardware actually provide?"

The Three Pillars

The Ergo Score is the sum of three independently scored categories, each capped at its maximum. A perfect 100 means the chair maximises adjustability, support, and build quality across all measured specs.

1. Adjustability (0–40 points)

This measures how many ways you can customise the chair to your body. More adjustment axes mean you can fine-tune the fit. That matters for preventing pain during long sessions.

Sum of all four, capped at 40. A chair with 4D armrests alone hits the cap.

2. Support (0–30 points)

This evaluates how well the chair supports your body through material quality and lumbar design. Mesh scores highest because it conforms to body shape and promotes airflow, which matters for long sessions in Indian climates.

Sum of all three, capped at 30.

3. Build Quality (0–30 points)

This measures durability and the manufacturer's confidence in their product. A chromium base, high weight capacity, and a 3+ year warranty indicate a chair built to last through years of daily use.

Sum of all three, capped at 30. A chair with 0yr warranty scores 0 for that row.

What the Score Means

Comfort Index (0–100)

In addition to the Ergo Score, every chair also receives a Comfort Index that estimates how comfortable the chair is likely to feel, especially for Indian climate and long sitting. Like the Ergo Score, it is fully deterministic and computed from specs.

Comfort Index Pillars

The Comfort Index complements the Ergo Score. A chair can score high on ergonomics (adjustability and build) but lower on comfort (e.g. leather seat in a hot climate), or vice versa. The best chairs score high on both.

What the Scores Do NOT Measure

• Subjective feel: We don't sit in these chairs. Comfort perception varies by body type, and our Comfort Index is a spec-based estimate, not a personal review.
• Aesthetics: How a chair looks doesn't affect your spine.
• Brand reputation: A well-known brand doesn't automatically mean better ergonomics.
• Value for money: A ₹3,000 chair scoring 45 might be excellent value; a ₹25,000 chair scoring 80 might not be. The scores measure hardware, not value.

Where Do the Specs Come From?

We extract specifications from Amazon.in product listings, manufacturer websites, and product packaging details. Every spec is documented in our enrichment logs with source URLs. When a spec is not available from any source, we display "Not specified by manufacturer." We never guess.

Can a Chair Score 100?

Yes. A chair scores 100/100 if it has: 4D armrests (or equivalent adjustability sum hitting the 40 cap), adjustable lumbar with mesh seat and back, and a chromium base with 120kg+ capacity and 3+ year warranty. Several chairs in our database achieve this. It means the hardware is fully spec'd, not that it's the "best chair ever made."