BMI for 170 cm and 55 kg
A person 170 cm (5'7") tall weighing 55 kg (121 lbs) has a BMI of 19.0 — classified as Normal. The healthy weight range for this height is 53.5–72.0 kg.
Your BMI
19.0
Category
Normal
Under 18.518.5–24.925–29.930+
Healthy weight range: 53.5–72.0 kg
What does this BMI mean?
A BMI of 19.0 sits in the Normal range under the standard WHO adult classification. This range is generally associated with the lowest health risk for most adults.
For someone 170 cm tall, weights between 53.5 kg and 72.0 kg fall in the BMI 18.5–24.9 normal range. That's roughly 118–159 lbs.
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Last updated: 2026