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A healthy weight for a 5'3" woman is approximately 104-141 lbs based on BMI guidelines. Multiple formulas suggest a midpoint around 120 lbs (BMI 21.3). Your ideal weight depends on muscle mass, bone structure, and body fat percentage.
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| Method | Weight (lbs) | Notes |
|---|---|---|
| BMI Range | 104-141 | Healthy BMI 18.5-24.9 |
| Robinson (1983) | 119 | Updated clinical formula |
| Miller (1983) | 126 | Population-based estimate |
| Devine (1974) | 116 | Original clinical formula |
| Formula Average | 120 | Midpoint of Robinson, Miller, Devine |
120
avg ideal (lbs)
104-141
BMI range (lbs)
21.3
BMI at midpoint
104-141
full range (lbs)
Two people at 5'3" and 120 lbs can look very different depending on body fat percentage. Explore what each level looks like:
The figures above come from the Robinson, Miller, and Devine clinical formulas plus the healthy BMI range, with the midpoint shown as a practical target. These formulas were built decades ago from population averages, so they disagree by several pounds and treat everyone of a given height and sex the same.
"Ideal weight" is a range, not a single correct number. None of these formulas account for muscle mass, frame size, or body composition, so a lean, muscular person can sit above their "ideal" weight and still be healthy. For a more personal target, look at body fat percentage and the full body composition methodology.
These pages are educational, not medical advice. Our figures and methodology are reviewed by Andrew Menechian, Head of Fitness.
Rather than targeting a weight number, FitCommit scans your body to show your current lean mass and fat mass. Your ideal weight is the one where you have the body fat percentage you want while preserving muscle.
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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 5'3" and 120 lbs, maintaining a body fat in the fitness range would mean carrying approximately 90 lbs of lean mass.
At 5'3", a weight above 141 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 woman, body fat above 32% is classified as obese by the ACE.
FitCommit estimates your body fat percentage, lean mass, and metabolic rate from an AI body scan. Then tracks your food with camera scanning. Free trial.
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