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.
CALC / 015
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 an adult screening reference, not a diagnosis. This display uses 18.5, 25, and 30 cutoffs; local clinical guidelines may differ.
Guide / 02
Quick guide
- Enter height in centimeters and weight in kilograms.
- Read the BMI value and the underweight, general, overweight, or obesity reference band.
- 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
Use the same units and settings when comparing your result with this example.
- Example input
Height 170 cm · weight 65 kg- Result and interpretation
65 ÷ 1.7² = 22.5 (rounded to one decimal) This falls in the adult reference band from 18.5 to below 25; it is not a health diagnosis.
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.