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BMI Calculator

Estimate body mass index and view the standard category range.

Private workspaceYour input stays on this device. HaloBench tools run in your browser whenever possible.
General range22.5
18.52530

BMI is a general screening reference and not a medical diagnosis.

Guide / 01

When to use it

Use height and weight to obtain a general adult body-mass-index range and prepare a basic reference point for a health conversation.

Guide / 02

Quick guide

  1. Enter height in centimeters and weight in kilograms.
  2. Read the BMI value and the underweight, general, overweight, or obesity reference band.
  3. Before making a health decision, interpret it alongside waist size, body composition, medical history, and professional advice.

CHECK

Validate the result

At 170 cm and 65 kg, 65 divided by 1.7 squared is about 22.5, which should match the displayed value.

LIMITS

Know the limits

BMI is a population screening measure that does not separate fat from muscle. It is not a diagnosis for children, pregnancy, athletes, older adults, or people with specific medical conditions.

Reference

Input and output example

Actual output depends on your input and browser environment. Verify any value used for an important decision.

Example input
170 cm · 65 kg
Expected output
BMI 22.5 · general range

FAQ

Frequently asked

If a muscular person has an overweight BMI, does that prove high body fat?

No. BMI cannot identify what the weight consists of and can overstate risk for muscular people. Body composition and other clinical measures provide needed context.

Does my data leave this device?

No. This tool is designed to process its working data in your browser. Advertising may load separately, but your tool input is never sent with it.