Calculate Body Mass Index (BMI) using Metric or Imperial units with official WHO category classifications, healthy weight ranges, and prime index.
Switch between Metric (kg, cm/meters) and Imperial (lbs, feet & inches) instantly.
Displays Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obese (30+) classifications.
Calculates your personalized healthy target weight range based on your exact height.
All health metrics are processed 100% locally in your browser memory.
Body Mass Index (BMI) is a standardized screening metric calculated as Weight (kg) / [Height (m)]².
For imperial units, Softnag uses the standardized formula: (Weight (lbs) × 703) / [Height (inches)]².
The result is mapped against World Health Organization (WHO) adult weight classification charts in real time.
Track weight loss or muscle building progress relative to healthy BMI thresholds.
Determine your ideal target weight in pounds or kilograms to achieve a normal BMI of 22.
Quickly screen baseline weight status for workplace wellness programs.
Calculate starting baseline metrics before beginning a structured nutrition program.
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered normal and healthy for adults.
BMI is a general screening tool based on height and weight; it does not directly measure muscle mass. Athletes and bodybuilders may register higher BMIs due to dense muscle tissue.
Softnag automatically calculates your ideal weight range (corresponding to a BMI of 18.5 to 24.9) based on your height input.
No. Softnag processes all BMI calculations locally in your browser memory with zero tracking.
Yes. You can toggle between Imperial (feet/inches, pounds) and Metric (cm, kg) with a single click.
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered normal healthy weight for adults.