Is 170 lbs overweight for a man at 5'8"?
Yes — 170 lbs is 6 lbs above the healthy upper limit for 5'8" (for a man).
At 170 lbs (77.1 kg) and 5'8" (172.7 cm) for a man, the BMI is 25.9 — overweight.
For an adult who is 172.7 cm tall, the World Health Organization considers a weight between 122 and 164 kg to be healthy.
What the numbers mean for you
You are 6 lbs (2.5 kg) above the healthy upper limit (BMI 25 = 164 lbs (74.6 kg)). At a modest 500 kcal daily deficit (~0.45 kg/week), reaching the healthy range takes about 6 weeks.
You have 27 lbs (12.4 kg) of buffer before crossing into the obese range (BMI 30 = 197 lbs (89.5 kg)). A 5–10% weight reduction (8 lbs (3.9 kg) to 17 lbs (7.7 kg)) is clinically meaningful even without reaching a "normal" BMI.
Timelines assume ~7,700 kcal per kg of body fat. Real progress varies with muscle mass, adherence, and medications.
What this means
At this BMI level, fitness and waist circumference are arguably more predictive of metabolic health than the BMI number itself.
Waist matters more than the scale
Two people can share the same BMI and have very different metabolic risk. For that reason, waist circumference is now considered a stronger predictor of cardiometabolic disease than BMI alone.
- Waist-to-height rule: keep your waist under half your height — that means below 86 cm (34") at 172.7 cm.
- Absolute cutoff for men: waist under 94 cm (37") is associated with meaningfully lower risk of type 2 diabetes and cardiovascular disease.
- Higher-risk zone: waist above 102 cm (40") — this is where risk climbs sharply regardless of BMI.
For men at 5'8"
BMI uses the same formula for both sexes, but health interpretation differs. Men typically carry a lower percentage of body fat at the same BMI than women. A waist circumference under 40 inches (102 cm) lowers cardiometabolic risk independent of BMI.
Precise ±5 lb neighbours at this height
| Weight | Conversion | BMI | Category |
|---|---|---|---|
| 165 lbs | 74.8 kg | 25.1 | Overweight |
| 166 lbs | 75.3 kg | 25.2 | Overweight |
| 167 lbs | 75.8 kg | 25.4 | Overweight |
| 168 lbs | 76.2 kg | 25.5 | Overweight |
| 169 lbs | 76.7 kg | 25.7 | Overweight |
| 170 lbs ← this page | 77.1 kg | 25.9 | Overweight |
| 171 lbs | 77.6 kg | 26.0 | Overweight |
| 172 lbs | 78 kg | 26.2 | Overweight |
| 173 lbs | 78.5 kg | 26.3 | Overweight |
| 174 lbs | 78.9 kg | 26.5 | Overweight |
| 175 lbs | 79.4 kg | 26.6 | Overweight |
Practical next steps
- Create a modest caloric deficit of 250–500 kcal/day for steady, sustainable loss.
- Combine cardio with strength training to preserve muscle.
- Track waist measurement — it often improves before scale weight.
- Reduce ultra-processed foods and sugar-sweetened drinks first.
Frequently asked questions
Is 170 lbs overweight for a man at 5'8"?
170 lbs at 5'8" gives a BMI of 25.9, which is overweight. The healthy range for 5'8" is 122–164 lbs.
What is the healthy weight for 5'8"?
122–164 lbs.
What waist size is healthy for a man at 5'8"?
Under 40 inches (102 cm) is associated with lower cardiometabolic risk.