BMI & Health Calculator

Enter your measurements to estimate your BMI, ideal-weight range, resting calorie needs and daily maintenance calories.

Your Personal Health Report

Name:

Age: years

Measurements:

BMI category:

Body Mass Index (BMI) kg/m²

Estimated healthy-weight range Based on adult BMI 18.5–24.9

Basal Metabolic Rate (BMR) kcal/day at rest, estimated

Daily maintenance calories Estimated kcal/day to maintain weight

Waist-to-height ratio

Weight relative to adult BMI range Approximate difference from the nearest range boundary

BMI Reference Guide for Adults

BMI range	Classification
Below 18.5	Underweight
18.5–24.9	Healthy weight range
25.0–29.9	Overweight
30.0 and above	Obesity range

How to interpret these results: BMI is a screening tool, not a direct measurement of body fat. It does not distinguish muscle from fat or fully account for age, pregnancy, body composition or ethnic differences. The healthy-weight range is a mathematical reference, not a personal weight-loss target. BMR and maintenance calories are estimates, not prescriptions.

This calculator is for general educational purposes and does not diagnose disease. It does not measure blood pressure, blood glucose, cholesterol or blood oxygen. Obtain these readings using appropriate measurement devices or laboratory tests. Consult a qualified healthcare professional for individual advice.

Karan Gupta

Senior Editor, Strength & Conditioning
B.Sc. in Kinesiology, Punjab University | Certified Strength and Conditioning Specialist (NSCA)

Karan Gupta has been a core part of Gymbag4u.com Team since its foundation in 2018. With a background in Fitness, bodybuilding exercise science and a decade of coaching experience, he specializes in functional fitness, injury prevention, and Fitness Routine Guide.