BMI for 70 kg and 173 cm
Instant answer: A person who weighs 70 kg (154 lbs) and is 173 cm (5'8") tall has a BMI of 23.4, classified as normal weight.
Someone 173 cm tall has a healthy weight window of 55.4–74.5 kg, derived from the standard adult BMI range.
What does a BMI of 23.4 mean?
Multi-decade studies (notably the NIH-AARP cohort of more than 500,000 adults) link this BMI band to the lowest all-cause mortality.
BMI is a screening tool, not a diagnosis. Two people at 70 kg and 173 cm can have very different body compositions and very different health profiles. Use BMI alongside waist circumference, fitness level, and routine bloodwork.
Healthy weight range for 173 cm
The BMI-based healthy weight range for 173 cm tall adults is 55.4–74.5 kg (122–164 lbs).
| Weight | In lbs | BMI | Category |
|---|---|---|---|
| 55 kg | 121 lbs | 18.4 | Underweight |
| 60 kg | 132 lbs | 20.0 | Normal weight |
| 65 kg | 143 lbs | 21.7 | Normal weight |
| 70 kg (this page) | 154 lbs | 23.4 | Normal weight |
| 75 kg | 165 lbs | 25.1 | Overweight |
| 80 kg | 176 lbs | 26.7 | Overweight |
| 85 kg | 187 lbs | 28.4 | Overweight |
Practical next steps
- Maintain at least 150 minutes of moderate aerobic activity per week.
- Include two strength sessions to preserve lean mass with age.
- Monitor waist circumference yearly — under 94 cm (men) / 80 cm (women).
- Get a routine metabolic panel every 1–2 years.
Frequently asked questions
What is the BMI for 70 kg and 173 cm?
Using the formula BMI = weight (kg) ÷ height (m)², a person who weighs 70 kg and is 173 cm tall has a BMI of 23.4. This places them in the normal weight category as defined by the World Health Organization.
Is 70 kg a healthy weight at 173 cm?
The healthy weight range for 173 cm is 55.4–74.5 kg, corresponding to a BMI of 18.5–24.9. 70 kg gives a BMI of 23.4, which is normal weight.
How was this BMI calculated?
BMI = 70 ÷ (1.73 × 1.73) = 70 ÷ 2.9929 = 23.4.
What should I do if my BMI is 23.4?
Maintain at least 150 minutes of moderate aerobic activity per week. Include two strength sessions to preserve lean mass with age.