---
title: "BMI Calculator USA — CDC Standard 2025 | World Calculators"
description: "Free US BMI calculator. 36.2% of American adults are obese (CDC 2022). Uses CDC/NIH WHO BMI standard. Calculate your Body Mass Index and see US health statistics. No ads."
url: "https://worldcalculators.org/us/bmi-calculator/"
canonical: "https://worldcalculators.org/us/bmi-calculator/"
---

# BMI Calculator — United States

Free US BMI calculator. 36.2% of American adults are obese (CDC 2022). Uses CDC/NIH WHO BMI standard. Calculate your Body Mass Index and see US health statistics. No ads.

## Quick answer

WHO normal BMI: 18.5–24.9. In the United States, 36.2% of adults are obese and 69.0% are overweight or obese (CDC NHANES 2022) — one of the highest rates among high-income countries. The CDC and NIH use WHO BMI thresholds: normal weight 18.5–24.9, overweight 25–29.9, obese ≥30, severely obese ≥40. Annual obesity-related healthcare costs exceed $173 billion.

Source: https://worldcalculators.org/us/bmi-calculator/
Markdown mirror of the HTML page. Prefer this URL for RAG; the interactive calculator still lives on the HTML page.