Kalkulator BMI
BMI (Body Mass Index) is a simple index calculated from height and weight. We show the result and a category based on WHO guidelines. This tool is for information only and does not replace medical advice or a proper body-composition assessment.
Tinggi (cm)
Berat (kg)
BMI Anda
24.2
Berat normal
Hasil ini hanya informatif dan tidak menggantikan saran medis.
How to calculate BMI
1. Enter height in centimeters.
2. Enter weight in kilograms.
3. Read your BMI and category.
4. Treat the result as a starting point for talking to a professional, not as a diagnosis.
Examples
Weight in the normal range
At 170 cm and 65 kg, BMI is about 22.5 — in the “normal weight” category on the simplified WHO scale for adults.
Overweight range
At 170 cm and 80 kg, BMI is about 27.7 — in the overweight category. The number alone does not describe body fat or fitness.
Tracking over time
You can return every few weeks and compare results — remembering that weight naturally fluctuates.
When BMI can help
• As a quick, rough indicator for adults.
• When you want to compare your result with general WHO ranges.
• As a starting point before seeing a doctor or dietitian.
When BMI is not enough
• For athletes with high muscle mass, the result can be misleading.
• Children and teens use different percentile charts — this calculator is simplified.
• For illness or pregnancy, health decisions belong with a doctor, not an online tool.
Where BMI came from
Body mass index is a population tool — it was built to compare groups, not to fully diagnose an individual. WHO popularized reference ranges for adults. Modern medicine also looks at waist size, body composition, activity, and other health factors alongside BMI.
Interpret with care
A result in the “normal” range does not guarantee health, and a result outside it is not a verdict. Strength athletes may have higher BMI with low body fat. Older adults and people with illness need individual assessment. This calculator educates; it does not treat.
Keeping health data private
Height and weight are sensitive in everyday life. We do not ask for an account and we do not save measurements. If you keep a health log, use a trusted medical app or a professional. This page is for a quick, private check in your browser.
BMI and fitness goals
If your goal is to change body shape, BMI alone is often less useful than tape measurements, progress photos, or coaching advice. Treat the calculator result as one signal among many, not the only health KPI.
Pertanyaan yang sering diajukan
How is BMI calculated?
BMI = weight (kg) ÷ height (m)². Example: 70 ÷ (1.75 × 1.75) ≈ 22.9.
What are the WHO categories?
Underweight < 18.5; normal 18.5–24.9; overweight 25–29.9; obesity ≥ 30 (simplified for adults).
Is BMI reliable for everyone?
It is a simplified index — it does not account for muscle, age, sex, or health status.
Is the result a diagnosis?
No. It is educational information, not a medical finding.
What units should I use?
Height in cm, weight in kg.
Is my data stored?
No — we calculate locally in your browser.
Can I use pounds and inches?
The current version accepts cm and kg only.
What if the result worries me?
Talk to a doctor or dietitian. Do not make drastic diet changes on your own.