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 25.1overweight.

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.

BMI scale WHO BMI categories from 14 to 42 with a marker at 25.1. Under Normal Over Ob I Ob II+ BMI 25.1 14 42
Your BMI of 25.1 sits in the overweight band. Cutoffs: 18.5, 25, 30, 35 (WHO).

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

WeightConversionBMICategory
165 lbs74.8 kg24.3Normal weight
166 lbs75.3 kg24.5Normal weight
167 lbs75.8 kg24.7Normal weight
168 lbs76.2 kg24.8Normal weight
169 lbs76.7 kg25.0Overweight
170 lbs ← this page77.1 kg25.1Overweight
171 lbs77.6 kg25.3Overweight
172 lbs78 kg25.4Overweight
173 lbs78.5 kg25.5Overweight
174 lbs78.9 kg25.7Overweight
175 lbs79.4 kg25.8Overweight

Practical next steps

  1. Create a modest caloric deficit of 250–500 kcal/day for steady, sustainable loss.
  2. Combine cardio with strength training to preserve muscle.
  3. Track waist measurement — it often improves before scale weight.
  4. 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.

Sources & references