️ BMI Calculator
Calculate your Body Mass Index and ideal weight
Your BMI
24.2
Healthy weight for your height: 53.5–72.0 kg
- Underweight
- <18.5
- Normal weight
- 18.5–25
- Overweight
- 25–30
- Obese
- ≥30
Important: BMI is a general guide. Consult a health professional for a complete evaluation.
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Free Online ️ BMI Calculator
Calculate your Body Mass Index (BMI) from your weight and height, using metric units (kg and cm) or imperial units (pounds and inches). Along with the result, you'll see which category you fall into (underweight, normal, overweight or obese) and a weight range considered healthy for your height.
Why use ️ BMI Calculator
- Supports metric (kg, cm) or imperial (lb, in) units
- Shows your BMI category: underweight, normal, overweight or obese
- Calculates a healthy weight range for your height
- Instant result as you type, no calculate button needed
- Free, no sign-up and no data stored
How to use it in 3 steps
- 1
Choose a unit system
Select metric (kg, cm) or imperial (lb, in).
- 2
Enter your weight and height
Type your weight and height into the corresponding fields.
- 3
Check the result
You'll see your BMI, your category, and the healthy weight range for your height.
Questions about ️ BMI Calculator
How is BMI calculated?
Using the standard formula: weight in kilograms divided by height in meters squared (weight / height²).
What does each BMI category mean?
Underweight: below 18.5. Normal: 18.5 to 24.9. Overweight: 25 to 29.9. Obese: 30 or above. These are the standard reference ranges, not a medical diagnosis.
How is the ideal weight calculated?
It takes your height and calculates the weight range that corresponds to a BMI between 18.5 and 24.9, considered the normal range.
Is BMI a reliable medical diagnosis?
It doesn't replace a medical evaluation — BMI doesn't distinguish muscle mass from body fat. Use it as a general reference and consult a health professional for a full assessment.
Is ️ BMI Calculator free?
Yes, ️ BMI Calculator from WebHerramientas is 100% free. No registration or subscription required. You can use it as many times as you need at no cost.
Is it safe to use ️ BMI Calculator online?
Yes, all information is processed directly in your browser. We do not store or send your data to any external server.
Does ️ BMI Calculator work on mobile?
Yes, the tool is fully responsive and works on any device: phone, tablet or computer with a modern browser.