BMI is a screening index based on weight and height to classify underweight, healthy weight, overweight, and obesity.

Is BMI accurate for everyone?

BMI is a screening tool and does not measure body fat directly. Accuracy varies with muscle mass, age, sex, and ethnicity.

What are adult BMI categories?

Underweight <18.5; Healthy 18.5–24.9; Overweight 25.0–29.9; Obesity ≥30.0.

BMI is a screening index based on weight and height to classify underweight, healthy weight, overweight, and obesity.

Is BMI accurate for everyone?

BMI is a screening tool and does not measure body fat directly. Accuracy varies with muscle mass, age, sex, and ethnicity.

What are adult BMI categories?

Underweight <18.5; Healthy 18.5–24.9; Overweight 25.0–29.9; Obesity ≥30.0.

BMI is a screening index based on weight and height to classify underweight, healthy weight, overweight, and obesity.

Is BMI accurate for everyone?

BMI is a screening tool and does not measure body fat directly. Accuracy varies with muscle mass, age, sex, and ethnicity.

What are adult BMI categories?

Underweight <18.5; Healthy 18.5–24.9; Overweight 25.0–29.9; Obesity ≥30.0.

BMI Calculator

Accurate Body Mass Index (BMI) calculator with metric/imperial units, healthy ranges, and interpretation based on WHO categories. Mobile-first, WCAG 2.1 AA compliant.

Full original guide (expanded)

Audit: Complete

Formula (LaTeX) + variables + units

This section shows the formulas used by the calculator engine, plus variable definitions and units.

Formula (extracted LaTeX)

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Variables and units

No variables provided in audit spec.

Sources (authoritative):

Home — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/
Health & Fitness — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/health-fitness
Health Metrics — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/subcategories/health-metrics

Changelog

Version: 0.1.0-draft
Last code update: 2026-01-19

0.1.0-draft · 2026-01-19

Initial audit spec draft generated from HTML extraction (review required).
Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
Confirm sources are authoritative and relevant to the calculator methodology.

Verified by Ugo Candido on 2026-01-19
Profile · LinkedIn

, ', svg: { fontCache: 'global' } };

Audit: Complete

Formula (LaTeX) + variables + units

This section shows the formulas used by the calculator engine, plus variable definitions and units.

Formula (extracted LaTeX)

\[','\\]

','\

Variables and units

No variables provided in audit spec.

Sources (authoritative):

Home — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/
Health & Fitness — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/health-fitness
Health Metrics — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/subcategories/health-metrics

Changelog

Version: 0.1.0-draft
Last code update: 2026-01-19

0.1.0-draft · 2026-01-19

Initial audit spec draft generated from HTML extraction (review required).
Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
Confirm sources are authoritative and relevant to the calculator methodology.

Verified by Ugo Candido on 2026-01-19
Profile · LinkedIn

]], displayMath: [['\\[','\\]']] }, svg: { fontCache: 'global' } };, svg: { fontCache: 'global' } };

Audit: Complete

Formula (LaTeX) + variables + units

This section shows the formulas used by the calculator engine, plus variable definitions and units.

Formula (extracted LaTeX)

\[','\\]

','\

Variables and units

No variables provided in audit spec.

Sources (authoritative):

Home — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/
Health & Fitness — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/health-fitness
Health Metrics — calcdomain.com · Accessed 2026-01-19
https://calcdomain.com/subcategories/health-metrics

Changelog

Version: 0.1.0-draft
Last code update: 2026-01-19

0.1.0-draft · 2026-01-19

Initial audit spec draft generated from HTML extraction (review required).
Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
Confirm sources are authoritative and relevant to the calculator methodology.

Verified by Ugo Candido on 2026-01-19
Profile · LinkedIn

Formulas

(Formulas preserved from original page content, if present.)

Version 0.1.0-draft

Citations

Add authoritative sources relevant to this calculator (standards bodies, manuals, official docs).

Changelog

0.1.0-draft — 2026-01-19: Initial draft (review required).