Free BMI Calculator – Check Your Body Mass Index and WHO Health Category Instantly
Free BMI Calculator (Adults 18+)
Enter height and weight to compute your BMI, WHO category, and a quick health-risk summary. Remember: BMI is a screening tool, not a diagnosis.
BMI: —
Category: —
Fill your details in BMI Calculator and click Calculate.
WHO Adult BMI Categories (tap to expand)
| Category | BMI (kg/m²) | Typical health risk (short) |
|---|---|---|
| Severe thinness | < 16.0 | Malnutrition, immune dysfunction, osteoporosis |
| Moderate thinness | 16.0–16.9 | Nutrient deficiency, muscle weakness, infections |
| Mild thinness | 17.0–18.4 | Low reserves, fatigue |
| Normal (healthy weight) | 18.5–24.9 | Generally lowest cardiometabolic risk |
| Pre-obesity (overweight) | 25.0–29.9 | ↑ BP, dyslipidemia, insulin resistance |
| Obesity Class I (moderate) | 30.0–34.9 | T2DM, hypertension, CAD, OA, NAFLD risk ↑ |
| Obesity Class II (severe) | 35.0–39.9 | Marked cardiometabolic/mechanical complications |
| Obesity Class III (very severe) | ≥ 40.0 | Very high morbidity/mortality |
Thresholds per WHO for adults (age ≥ 20).
Benefits of BMI or BMI Calculator
- Simple, quick, inexpensive screening tool.
- Useful at a population level to monitor trends.
- Correlates with cardiometabolic risk in many groups.
Limitations of BMI or BMI Calculator
- Does not capture fat distribution (e.g., visceral fat).
- Cannot distinguish muscle from fat; affected by edema.
- Cut-offs may vary across age, ethnicity, pregnancy, illness.
Learn more: Benefits & limitations of BMI
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Free BMI Calculator:
Select how you want to enter height (m, cm or feet/inches) ·
Enter you weight in Kilogram (Kg) ·
Click on claculate and see the BMI and WHO category.
BMI Calculator Limits- Height: 9 Foot; Weight: 400 Kg
Scoll below for link of Disclaimer and term and conditions for the use BMI Calculator.
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Physical Medicine & Rehabilitation
FAQs
What is Physical Medicine and Rehabilitation?
Physical Medicine and Rehabilitation (PM&R), also known as physiatry, is an allopathic medical specialty that involves restoring function for a person who has been disabled by disease, disorder, or injury. It provides integrated, multidisciplinary care addressing physical, emotional, medical, vocational, and social needs.
Who is a “Physiatrist”?
A physiatrist is a physician specializing in physical medicine and rehabilitation. (In India: MBBS followed by MD/DNB in PMR.)
What is Rehabilitation?
Rehabilitation is the process of helping a person achieve the highest level of function, independence, and quality of life possible. It does not undo damage but restores optimal health, functioning, and well-being.
Is PM&R only for people with disabilities?
No. PM&R serves anyone experiencing a decline in physical function—from athletes with injuries to elderly individuals recovering from surgery, falls, or pain.
Can physiatrists perform surgery?
Yes. In India, physiatrists perform rehabilitation surgeries such as deformity corrections, tendon transfers, and revision of amputations.
How does PM&R help in managing chronic pain?
Physiatrists use a multimodal approach—evaluation, diagnosis, medication, therapy, injections (e.g., nerve blocks, trigger point/joint injections), and lifestyle modifications—to reduce pain and improve daily function.
What conditions do physiatrists treat?
Common conditions include stroke, spinal cord injuries, traumatic brain injury, cerebral palsy, amputations, sports injuries, chronic musculoskeletal pain, post-surgical rehabilitation, osteoarthritis, osteoporosis, and more.
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