BMI for 140 lbs and 5'8"
Instant answer: 140 lbs (63.5 kg) at 5'8" (172.7 cm) gives a BMI of 21.3 — normal weight.
Adults at 172.7 cm typically fall within a healthy weight band of 55.2–74.3 kg using the WHO BMI thresholds.
What does a BMI of 21.3 mean?
Staying inside this band is associated with the most favourable metabolic markers in adult populations under 65.
Healthy weight range for 5'8"
The BMI-based healthy weight range for 5'8" is 122–164 lbs (55.2–74.3 kg).
| Weight (lbs) | Weight (kg) | BMI | Category |
|---|---|---|---|
| 120 lbs | 54.4 kg | 18.2 | Underweight |
| 130 lbs | 59 kg | 19.8 | Normal weight |
| 140 lbs (this page) | 63.5 kg | 21.3 | Normal weight |
| 150 lbs | 68 kg | 22.8 | Normal weight |
| 160 lbs | 72.6 kg | 24.3 | 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 140 lbs and 5'8"?
A person who weighs 140 lbs (63.5 kg) and is 5'8" tall has a BMI of 21.3, classified as normal weight by the WHO.
Is 140 lbs a healthy weight at 5'8"?
The healthy weight range for 5'8" is 122–164 lbs (55.2–74.3 kg). 140 lbs gives a BMI of 21.3.
What BMI category is this?
Normal weight. Staying inside this band is associated with the most favourable metabolic markers in adult populations under 65.