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A healthy weight for a 6'1" man is approximately 140-189 lbs based on BMI guidelines. Multiple formulas suggest a midpoint around 170 lbs (BMI 22.4). Your ideal weight depends on muscle mass, bone structure, and body fat percentage.
| Method | Weight (lbs) | Notes |
|---|---|---|
| BMI Range | 140-189 | Healthy BMI 18.5-24.9 |
| Robinson (1983) | 169 | Updated clinical formula |
| Miller (1983) | 164 | Population-based estimate |
| Devine (1974) | 176 | Original clinical formula |
| Formula Average | 170 | Midpoint of Robinson, Miller, Devine |
170
avg ideal (lbs)
140-189
BMI range (lbs)
22.4
BMI at midpoint
140-189
full range (lbs)
Two people at 6'1" and 170 lbs can look very different depending on body fat percentage. Explore what each level looks like:
Each formula was developed from different population samples and uses different methodologies. The Devine formula (1974) was originally for drug dosing, not fitness. Robinson (1983) and Miller (1983) updated these estimates. BMI-based ranges are the most widely used. No single formula is perfect because ideal weight depends on individual factors like muscle mass and frame size.
Body fat percentage is more useful than BMI for fitness goals. BMI only uses height and weight, so it misclassifies muscular people as overweight. Body fat percentage directly measures how much of your weight is fat tissue. Use BMI as a rough screening tool and body fat percentage for detailed body composition assessment.
Healthy body fat ranges are the same regardless of height: 14-24% for men and 21-31% for women (ACE guidelines). Athletes are typically 6-13% (men) and 14-20% (women). At 6'1" and 170 lbs, maintaining a body fat in the fitness range would mean carrying approximately 139 lbs of lean mass.
At 6'1", a weight above 189 lbs puts you in the overweight BMI category (25+). However, this does not account for muscle mass. A better approach is measuring body fat percentage. For man, body fat above 25% is classified as obese by the ACE.
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