BMI for 100 lbs and 4'11"
Instant answer: 100 lbs (45.4 kg) at 4'11" (149.9 cm) gives a BMI of 20.2 — normal weight.
Adults at 149.9 cm typically fall within a healthy weight band of 41.6–56 kg using the WHO BMI thresholds.
What does a BMI of 20.2 mean?
This range corresponds to the lowest statistical risk of cardiovascular disease, type 2 diabetes, and metabolic syndrome in long-term cohort studies.
Healthy weight range for 4'11"
The BMI-based healthy weight range for 4'11" is 92–123 lbs (41.6–56 kg).
| Weight (lbs) | Weight (kg) | BMI | Category |
|---|---|---|---|
| 80 lbs | 36.3 kg | 16.2 | Underweight |
| 90 lbs | 40.8 kg | 18.2 | Underweight |
| 100 lbs (this page) | 45.4 kg | 20.2 | Normal weight |
| 110 lbs | 49.9 kg | 22.2 | Normal weight |
| 120 lbs | 54.4 kg | 24.2 | Normal weight |
Practical next steps
- Continue current habits; this BMI band is associated with the lowest health risk.
- Focus on protein intake (0.8–1 g per kg) and quality sleep.
- Track waist circumference rather than weight as you age.
- Annual labs are still worthwhile even at a healthy weight.
Frequently asked questions
What is the BMI for 100 lbs and 4'11"?
A person who weighs 100 lbs (45.4 kg) and is 4'11" tall has a BMI of 20.2, classified as normal weight by the WHO.
Is 100 lbs a healthy weight at 4'11"?
The healthy weight range for 4'11" is 92–123 lbs (41.6–56 kg). 100 lbs gives a BMI of 20.2.
What BMI category is this?
Normal weight. This range corresponds to the lowest statistical risk of cardiovascular disease, type 2 diabetes, and metabolic syndrome in long-term cohort studies.