BMI Calculator
Your BMI.
In context.
cm
kg
- Your BMI
- 23.5
- Category
- Healthy weight
- Healthy weight for your height
- 53.5 kg – 72.0 kg
Enter your height and weight (metric or imperial) to get your BMI, its WHO category — underweight below 18.5, healthy 18.5–24.9, overweight 25–29.9, obesity 30+ — and the healthy weight range for your height.
BMI categories (WHO, adults)
| BMI | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Healthy weight |
| 25 – 29.9 | Overweight |
| 30 and above | Obesity |
Healthy weight range by height
| Height | Healthy weight (BMI 18.5–24.9) |
|---|---|
| 150 cm (4′11″) | 41.6 – 56.0 kg |
| 155 cm (5′1″) | 44.4 – 59.8 kg |
| 160 cm (5′3″) | 47.4 – 63.7 kg |
| 165 cm (5′5″) | 50.4 – 67.8 kg |
| 170 cm (5′7″) | 53.5 – 72.0 kg |
| 175 cm (5′9″) | 56.7 – 76.3 kg |
| 180 cm (5′11″) | 59.9 – 80.7 kg |
| 185 cm (6′1″) | 63.3 – 85.2 kg |
| 190 cm (6′3″) | 66.8 – 89.9 kg |
Related tools
Frequently asked questions
- How is BMI calculated?
- BMI = weight in kilograms ÷ (height in metres)². For 70 kg and 1.75 m: 70 ÷ 3.0625 = 22.9.
- Is BMI accurate for everyone?
- No. It doesn't distinguish muscle from fat and isn't designed for children, pregnant women or athletes. For South Asian adults, health risks begin at a lower BMI (around 23). Use it as a screening tool and talk to a doctor.