CalcNest AI

BMI Calculator

Calculate your Body Mass Index to understand where you fall on the weight classification scale. Note: BMI is a screening tool, not a diagnostic measure.

About BMI Calculator

Calculate your Body Mass Index to understand where you fall on the weight classification scale. Note: BMI is a screening tool, not a diagnostic measure.

Formula

BMI = Weight (kg) / Height (m)²

Example

70 kg, 1.75 m → BMI 22.9 (Normal weight).

How to Use

Enter your values in the fields above and click "Calculate" to get instant results. All calculations happen in your browser — nothing is sent to any server.

Frequently Asked Questions

What is BMI Calculator?
Calculate your Body Mass Index to understand where you fall on the weight classification scale. Note: BMI is a screening tool, not a diagnostic measure.

What formula does this use?
This calculator uses: BMI = Weight (kg) / Height (m)²

Is this calculator free?
Yes! All calculators on CalcNest AI are 100% free with no account required.

Is my data safe?
Absolutely. All calculations run locally in your browser. We never store or transmit your input data.

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