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BMI: 123cm, 23kg
BMI for 123cm tall and 23kg: 15.2 (Underweight). Free BMI calculator with health categories.
15.2 (Underweight)
BMI = 23 / (123/100)^2 = 15.2. 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 |
|---|---|
| 123 / 18 | 11.9 (Underweight) |
| 123 / 21 | 13.9 (Underweight) |
| 123 / 22 | 14.5 (Underweight) |
| 123 / 24 | 15.9 (Underweight) |
| 123 / 25 | 16.5 (Underweight) |
| 123 / 28 | 18.5 (Normal) |
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.