⚖️🛠️ Utility Tools

BMI Calculator

Calculate BMI from height and weight.

Weight (kg)Height (cm)

BMI

24.2

Normal

What's next?

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Free Online BMI Calculator

Calculate your Body Mass Index from height and weight in your browser — no upload to any server and no account required. Supports both metric (kg/cm) and imperial (lb/in) units.

Individuals track their BMI as a general health indicator during fitness goals. Healthcare students learn BMI calculations for clinical assessments. Fitness app developers use this as a reference to validate their own BMI formula implementations.

How to Use

1Select metric or imperial units.
2Enter your height and weight.
3Your BMI and category (Underweight, Normal, Overweight, Obese) are shown instantly.

Frequently Asked Questions

Is any data sent to a server?

No. The BMI calculation runs entirely in your browser. Nothing is uploaded or stored.

What is the BMI formula?

BMI = weight (kg) ÷ height (m)². For imperial: BMI = 703 × weight (lb) ÷ height (in)².

What do the BMI categories mean?

Under 18.5: Underweight. 18.5–24.9: Normal. 25–29.9: Overweight. 30 and above: Obese. These are general guidelines — consult a healthcare professional for medical advice.

Is BMI an accurate health measure?

BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, or body fat distribution.