Healthy Weight Calculator
Calculate your optimal healthy weight range based on World Health Organization standards and clinical medical equations.
Equivalent to 117.9 – 158.7 lbs for your height.
Clinical Ideal & Healthy Weight Formulas
Summary of historical and contemporary peer-reviewed equations used in clinical medicine and pharmacology:
| Formula | Men Formulation | Women Formulation |
|---|---|---|
| WHO Healthy Range | 18.5 · H(m)² – 24.9 · H(m)² | 18.5 · H(m)² – 24.9 · H(m)² |
| Robinson (1983) | 52 kg + 1.9 kg / inch > 5ft | 49 kg + 1.7 kg / inch > 5ft |
| Miller (1983) | 56.2 kg + 1.41 kg / inch > 5ft | 53.1 kg + 1.36 kg / inch > 5ft |
| Devine (1974) | 50.0 kg + 2.3 kg / inch > 5ft | 45.5 kg + 2.3 kg / inch > 5ft |
| Hamwi (1964) | 48.0 kg + 2.7 kg / inch > 5ft | 45.5 kg + 2.2 kg / inch > 5ft |
Healthy Weight Frequently Asked Questions
What is the clinical definition of a healthy weight?
A healthy weight is a body mass range associated with the lowest statistical risk of chronic cardiovascular disease, type 2 diabetes, metabolic syndrome, and all-cause mortality. The World Health Organization (WHO) benchmarks this as a Body Mass Index (BMI) between 18.5 and 24.9 kg/m².
How do clinical formulas (Robinson, Devine, Hamwi) differ from BMI?
BMI provides a broad statistical bracket based solely on height, while formulas like Robinson, Miller, Devine, and Hamwi were developed by clinical pharmacologists to identify an exact target weight for drug dosing and physiological equilibrium based on sex and skeletal stature.
How does skeletal frame size alter healthy weight targets?
Bone density and joint breadth vary across individuals. A person with a large skeletal frame (measured by wrist circumference or elbow breadth) can carry roughly 10% more bone and muscle tissue healthily than an individual with a small frame of the exact same height.
Is healthy weight different for athletes?
Yes. Resistance-trained athletes with high muscular hypertrophy may weigh more than standard formula recommendations while maintaining optimal cardiometabolic markers and low body fat percentage.
Scientific References & Peer-Reviewed Literature
- World Health Organization (WHO). (1995). Physical status: The use and interpretation of anthropometry. Report of a WHO Expert Committee. WHO Technical Report Series, No. 854.
- Robinson JD, Lupial CA, Stewart RB, et al. (1983). Determination of ideal body weight for drug dosage calculations. American Journal of Hospital Pharmacy, 40(6), 1016–1019. PMID: 6869387.
- Miller DR, Carlson JD, Loyd BJ, et al. (1983). Determining ideal body weight. American Journal of Hospital Pharmacy, 40(10), 1622.
- Devine BJ. (1974). Gentamicin therapy. Drug Intelligence & Clinical Pharmacy, 8(11), 650–655.
- Hamwi GJ. (1964). Changing dietary concepts. In: Danowski TS, ed. Diabetes Mellitus: Diagnosis and Treatment. New York: American Diabetes Association, 1: 73–78.
