BMI for 155 cm & 55 kg
Result: 22.9 · Normal Weight (Mid)
Body Mass Index
22.9
Normal Weight (Mid)
WHO BMI range for this category: 18.5 – 24.9
What a BMI of 22.9 at 155 cm and 55 kg means
A body mass index of 22.9 (155 cm, 55 kg) sits squarely in the normal weight category. Focus on body composition, strength, and aerobic capacity from here — BMI is a screening tool, not a goal.
For someone 155 cm tall, the WHO healthy BMI range (18.5 – 24.9) corresponds to a body weight between roughly 44.4 – 59.8 kg (98.0 – 131.9 lbs). BMI is a screening tool, not a body composition measurement, so it does not distinguish muscle from fat. Pair it with waist circumference and body fat percentage for a complete picture.
What you would need to weigh at 155 cm to reach each BMI threshold
| Target BMI | Body weight | Difference vs current |
|---|---|---|
| BMI 18.5 (underweight cutoff) | 44.4 kg (98.0 lbs) | -10.6 kg |
| BMI 22 (middle of healthy range) | 52.9 kg (116.5 lbs) | -2.1 kg |
| BMI 25 (overweight cutoff) | 60.1 kg (132.4 lbs) | +5.1 kg |
| BMI 30 (obesity cutoff) | 72.1 kg (158.9 lbs) | +17.1 kg |
BMI for nearby heights and weights
Reference values at similar measurements. Each link is a pre-calculated page.
Looking for the imperial equivalent? See BMI for 5'2" & 120 lbs →
Frequently asked questions
- Is a BMI of 22.9 healthy for 155 cm?
- A BMI of 22.9 at 155 cm is classified as Normal weight. The WHO healthy BMI range is 18.5 – 24.9, which for your height translates to roughly 44.4 – 59.8 kg (98.0 – 131.9 lbs).
- What is the ideal weight for someone 155 cm tall?
- The mid-point of the healthy BMI range (BMI 22) for 155 cm is approximately 52.9 kg (116.5 lbs). The full healthy range spans roughly 44.4 – 59.8 kg. Body composition matters more than the exact number — a muscular person can sit at the top of the range and be perfectly healthy.
- How does BMI relate to body fat percentage at 55 kg?
- BMI does not measure body fat directly. Two people at 155 cm and 55 kg can have very different body compositions. A trained athlete at this weight may have 12 – 15% body fat, while a sedentary adult may have 25 – 30%. Use the Body Fat Calculator for a more precise estimate.
- Is BMI accurate for everyone at 155 cm tall?
- BMI is a population-level screening tool. It systematically over-classifies muscular athletes as overweight and under-classifies older adults with sarcopenic obesity. For an individual assessment at 155 cm, combine BMI with waist circumference (men < 94 cm, women < 80 cm at low risk) and body fat percentage.
- How much weight would I need to lose or gain to reach a healthy BMI at 155 cm?
- If your BMI is below 18.5, gaining weight up to the 44.4 kg (98.0 lbs) threshold puts you in the healthy band. If above 25, losing weight toward 59.8 kg (131.9 lbs) does the same. Aim for 0.25 – 0.5 kg per week for sustainable change.
Calculate with your own values
This page shows pre-calculated results for 155 cm and 55 kg. For any other combination, use the full calculators below.