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BMI: 309cm, 52kg
BMI for 309cm tall and 52kg: 5.4 (Underweight). Free BMI calculator with health categories.
5.4 (Underweight)
BMI = 52 / (309/100)^2 = 5.4. Category: Underweight.
How This Was Calculated
Metric: BMI = weight(kg) / height(m)²
Imperial: BMI = 703 × weight(lbs) / height(in)²
Categories: Underweight <18.5 | Normal 18.5-24.9 | Overweight 25-29.9 | Obese ≥30.
Quick Reference Table
| Input | Result |
|---|---|
| 309 / 47 | 4.9 (Underweight) |
| 309 / 50 | 5.2 (Underweight) |
| 309 / 51 | 5.3 (Underweight) |
| 309 / 53 | 5.6 (Underweight) |
| 309 / 54 | 5.7 (Underweight) |
| 309 / 57 | 6.0 (Underweight) |
Frequently Asked Questions
What is a healthy BMI?
A BMI between 18.5 and 24.9 is considered normal.
Does BMI account for muscle mass?
No, BMI is a general screening tool and does not distinguish muscle from fat.
Should I use metric or imperial?
Both give the same result. Use whichever you are comfortable with.