Is 170 lbs overweight for 5'9"?
Yes — 170 lbs is 1 lbs above the healthy upper limit for 5'9".
At 170 lbs (77.1 kg) and 5'9" (175.3 cm), the BMI is 25.1 — overweight.
Public-health guidelines place the ideal weight for 175.3 cm tall adults at 125–169 kg, equivalent to a BMI between 18.5 and 24.9.
What the numbers mean for you
You are 1 lbs (0.3 kg) above the healthy upper limit (BMI 25 = 169 lbs (76.8 kg)). At a modest 500 kcal daily deficit (~0.45 kg/week), reaching the healthy range takes about 1 weeks.
You have 33 lbs (15.1 kg) of buffer before crossing into the obese range (BMI 30 = 203 lbs (92.2 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
A BMI in this band is moderately associated with elevated blood pressure and altered lipid profiles, but lifestyle factors strongly modify the actual risk.
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 88 cm (35") at 175.3 cm.
- Absolute cutoff for most adults: 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.
Precise ±5 lb neighbours at this height
| Weight | Conversion | BMI | Category |
|---|---|---|---|
| 165 lbs | 74.8 kg | 24.3 | Normal weight |
| 166 lbs | 75.3 kg | 24.5 | Normal weight |
| 167 lbs | 75.8 kg | 24.7 | Normal weight |
| 168 lbs | 76.2 kg | 24.8 | Normal weight |
| 169 lbs | 76.7 kg | 25.0 | Overweight |
| 170 lbs ← this page | 77.1 kg | 25.1 | Overweight |
| 171 lbs | 77.6 kg | 25.3 | Overweight |
| 172 lbs | 78 kg | 25.4 | Overweight |
| 173 lbs | 78.5 kg | 25.5 | Overweight |
| 174 lbs | 78.9 kg | 25.7 | Overweight |
| 175 lbs | 79.4 kg | 25.8 | 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 5'9"?
170 lbs at 5'9" gives a BMI of 25.1, which is overweight. The healthy range for 5'9" is 125–169 lbs.
What is the healthy weight for 5'9"?
125–169 lbs.