Free Online Calculator

BMI Calculator

Calculate body mass index (BMI) from height and weight to review the resulting BMI value.

⚖️ BMI Calculator

Calculate your Body Mass Index (BMI) to assess if your weight is healthy for your height.

Your BMI Result

BMI Value
Enter your details above

What is the body mass index (BMI)?

The body mass index (BMI) is a measure that uses your height and weight to work out if your weight is healthy. The BMI calculation divides an adult's weight in kilograms by their height in metres squared.

BMI Ranges

Below 18.5
Underweight
18.5 - 24.9
Healthy Weight
25.0 - 29.9
Overweight
30.0+
Obese

About This Calculator

Use the BMI Calculator to calculate body mass index from height and weight and review the resulting BMI value.

How We Keep This Calculator Reliable

SaralStudy calculators are built for learning, revision and planning with visible formulas and worked examples.

Formula first Each academic calculator shows the calculation rule before the result so students can verify the method.
Context matters Check units, syllabus context and assumptions before using any answer in homework, lab work or exam preparation.
Educational use Results are study aids, not professional medical, financial, legal or engineering advice.

Study Connections

Continue from this calculator to the matching concepts, formulas and exam practice pages.

NCERT Solutions Use chapter answers before applying formulas or calculators. Important Formulas Revise the formula, units and steps behind each calculation. MCQ Practice Test the same concept with objective questions and quick review. CBSE Sample Papers Apply calculator and formula skills to exam-style questions. Computer Skills Use spreadsheets, documents and presentations with calculations.

Continue with calculators from the same topic section.

Army Body Fat Calculator Free online calculator BMR Calculator Free online calculator Calorie Burn Calculator Free online calculator healthy Weight Calculator Free online calculator Lean Body Mass Calculator Free online calculator Running Pace Calculator Free online calculator Weight Lossing Calculator Free online calculator

Frequently Asked Questions

Quick answers about using this calculator and interpreting the result.

What is BMI and how is it calculated?

BMI (Body Mass Index) is a measure of body fat based on height and weight. It is calculated as weight in kilograms divided by height in meters squared (kg/m²).

What are the BMI categories?

BMI categories are: Underweight (below 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obese (30 and above). These ranges may vary slightly for different populations.

Is this content helpful?

Your feedback helps us improve calculator steps, explanations and examples.

Login to vote

Comments

No approved comments yet.

Study Resources

Calculators

SaralStudy

Legal

Disclaimer: SaralStudy calculators and study content are provided for educational reference, practice and estimation. Please verify official notices, syllabus updates, exam dates, eligibility, results, admissions and financial or health decisions from the relevant authority or qualified professional.