ToolNest
Check BMI, ideal weight range, and daily calorie estimate.
| BMI | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal |
| 25 – 29.9 | Overweight |
| 30+ | Obese |
Body Mass Index (BMI) is a simple health indicator that compares your weight and height to determine whether you are underweight, normal, overweight, or obese.
It is widely used by doctors, fitness experts, and health organizations as an initial screening tool to assess potential health risks related to body weight.
BMI is calculated using the following formula:
BMI = Weight (kg) ÷ Height (m²)
For example, if your weight is 70 kg and height is 1.70 meters, your BMI would be:
70 ÷ (1.70 × 1.70) = 24.22
This BMI calculator performs the calculation automatically and shows your health category instantly.
Maintaining a normal BMI range helps reduce the risk of lifestyle diseases such as diabetes, heart disease, and high blood pressure.
BMI is a screening estimate, not a diagnosis. Muscle mass, age, and medical conditions can change how results should be interpreted.
Your ideal weight range is calculated using the healthy BMI range (18.5 – 24.9) based on your height.
Staying near this range is commonly associated with:
Calories are the energy your body needs to perform daily activities. Knowing your daily calorie requirement helps you manage weight effectively.
Calorie needs vary. Treat this estimate as a guide, not medical advice.
Note: BMI may not be fully accurate for athletes, pregnant women, or individuals with high muscle mass.
BMI works well for most adults but may not reflect body fat percentage accurately in athletes or muscular individuals.
No. BMI is a screening tool and does not diagnose medical conditions.
Checking BMI once every 1–2 months is sufficient for tracking progress.
BMI is a helpful guideline, not a medical diagnosis. Use it to understand your body better and take informed steps toward a healthier lifestyle.
For medical advice, always consult a qualified healthcare professional.