For someone who is 5’8″, a healthy weight generally falls between 125 and 164 pounds, depending on sex, body frame, and muscle mass. That range comes from standard BMI charts, but it’s a starting point, not the final answer. Your ideal weight depends on several factors that a single number can’t capture.
Healthy Weight Ranges for 5’8″
The most widely used reference is the BMI (body mass index) chart from the National Institutes of Health. For a person standing 5’8″, the weight categories break down like this:
- Underweight (BMI below 18.5): under 122 lbs
- Healthy weight (BMI 19–24): 125 to 158 lbs
- Overweight (BMI 25–29): 164 to 190 lbs
- Obese (BMI 30+): 197 lbs and above
These ranges don’t distinguish between men and women, which is one of their limitations. Clinical formulas that do account for sex place the ideal weight for a 5’8″ woman at roughly 126 to 154 pounds and for a 5’8″ man at roughly 139 to 169 pounds. The spread in each range accounts for differences in bone structure, which matters more than most people realize.
How Body Frame Changes Your Target
Two people at the same height can have noticeably different skeletal builds. A simple way to estimate your frame size is to wrap your thumb and middle finger around your wrist. If they overlap, you likely have a small frame. If they just touch, medium. If there’s a gap, large.
The Metropolitan Life Insurance tables, which were developed from mortality data on millions of people, give more specific targets based on frame size:
- Women at 5’8″: small frame 126–139 lbs, medium frame 136–150 lbs, large frame 146–167 lbs
- Men at 5’8″: small frame 140–148 lbs, medium frame 145–157 lbs, large frame 152–172 lbs
These numbers were recorded in indoor clothing (adding about 3 to 5 pounds), so subtract a few pounds for a true body weight comparison. Still, they illustrate an important point: a large-framed man at 170 pounds and a small-framed man at 142 pounds can both be at a perfectly healthy weight for 5’8″.
Why BMI Doesn’t Tell the Whole Story
BMI treats all weight the same. It can’t tell whether your pounds come from muscle, fat, or bone. Someone who lifts weights regularly and carries significant muscle mass could easily land in the “overweight” BMI category at 5’8″ while having a low body fat percentage and excellent metabolic health. Research on fat-free mass shows that men with above-average muscle mass typically carry 18.7 to 21 kg/m² of lean tissue alone, which at 5’8″ can push total body weight well past 158 pounds without excess fat.
A more useful measurement to pair with your scale weight is your waist circumference. The NHS recommends keeping your waist size below half your height. At 5’8″ (68 inches), that means your waist should stay under 34 inches. Belly fat is more strongly linked to heart disease, diabetes, and metabolic problems than the number on the scale. If your waist is under 34 inches but your BMI says “overweight,” the waist measurement is probably the more reassuring data point.
What Changes as You Get Older
The standard healthy BMI range of 18.5 to 24.9 was designed for all adults regardless of age. But a growing body of evidence suggests that older adults may benefit from carrying a bit more weight. A large meta-analysis covering community-dwelling adults over 65 found that the lowest mortality risk corresponded to a BMI of roughly 27.5 to 30. For someone 5’8″, that translates to about 181 to 197 pounds.
This doesn’t mean gaining weight is protective. It means that older adults who are slightly above the textbook “healthy” range tend to have better reserves during illness, surgery, or periods of reduced appetite. Losing too much weight after 65 is often a bigger concern than carrying an extra 10 or 15 pounds, particularly if muscle mass is preserved.
Health Risks of Exceeding the Healthy Range
Carrying excess weight at 5’8″ increases your risk for a long list of conditions, and the risk climbs as weight goes up. Nearly 9 in 10 people with type 2 diabetes have overweight or obesity. High blood pressure, heart disease, stroke, sleep apnea, fatty liver disease, osteoarthritis, and certain cancers (including colon, breast, and prostate) all become more likely.
The encouraging flip side is that even modest weight loss makes a measurable difference. Losing just 5% to 7% of your body weight can significantly reduce your risk of developing type 2 diabetes if you’re in a pre-diabetic range. At 200 pounds, that’s only 10 to 14 pounds. Losing 3% to 5% of body weight can reduce fat buildup in the liver. For women dealing with irregular cycles or fertility challenges related to weight, a 5% reduction has been shown to improve ovulation and the chances of becoming pregnant.
Finding Your Personal Target
Rather than fixating on a single number, think of your target as a zone shaped by your sex, frame size, muscle mass, age, and where your body tends to store fat. For most people at 5’8″, a reasonable starting target falls somewhere in these ranges:
- Women under 65: 126 to 154 lbs
- Men under 65: 139 to 169 lbs
- Adults over 65: the upper end of these ranges, or slightly above, is generally fine
- Athletic or muscular builds: weight above these ranges is common and not a concern if waist circumference stays under 34 inches
If you’re currently well above these ranges, you don’t need to reach them to see health benefits. A loss of even 10 to 15 pounds from a starting weight of 200+ can improve blood sugar, blood pressure, joint pain, and energy levels. Progress matters more than hitting a specific number on the scale.