BMI Calculator - Free Online Tool | PivaBox

Calculate Body Mass Index and determine weight category with height and weight inputs

How to Use BMI Calculator

1. Enter your height using cm/m or feet/inches
2. Enter your weight using kg or pounds
3. Your BMI is calculated instantly and your weight category is displayed (underweight, normal, overweight, or obese)

Frequently Asked Questions

Is BMI Calculator free?

Yes, PivaBox BMI Calculator is completely free to use. All calculations are done in your browser.

Are my measurements uploaded to a server?

No. All BMI calculations are done locally in your browser. Your personal data never leaves your device.

How is BMI interpreted?

BMI categories: Below 18.5 = Underweight, 18.5-24.9 = Normal weight, 25.0-29.9 = Overweight, 30.0 and above = Obese. Note that BMI is a screening measure and does not account for muscle mass, body composition, age, or gender. Consult a healthcare provider for a complete health assessment.