Ideal Weight Calculator
Ideal Body Weight
Calculate ideal weight range based on multiple formulas
Basic Information
Please enter your height to calculate ideal weight
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StartAbout Ideal Weight
Ideal weight is a reference value, different formulas are based on different research and population data. Actual healthy weight should be comprehensively assessed in combination with individual body fat percentage, muscle mass, bone density and other factors. It is recommended to consult a professional doctor for personalized advice.
- X = inches of height above 152.4cm (5 ft); results in kg
About this tool
What is Ideal Weight Calculator?
Estimates an ideal weight range using classic formulas like Devine, Robinson, Miller, and Hamwi.
What is it for?
Gives you a reference target weight.
How to read your result
Use the average of the formulas as a reference and compare it against your healthy weight range.
Formula
♂ 52 + 1.9 × ((h−152.4)/2.54) ♀ 49 + 1.7 × ((h−152.4)/2.54)♂ 56.2 + 1.41 × ((h−152.4)/2.54) ♀ 53.1 + 1.36 × ((h−152.4)/2.54)♂ 50 + 2.3 × ((h−152.4)/2.54) ♀ 45.5 + 2.3 × ((h−152.4)/2.54)♂ 48 + 2.7 × ((h−152.4)/2.54) ♀ 45.5 + 2.2 × ((h−152.4)/2.54)Healthy range = BMI 18.5–24 × height(m)²Frequently asked questions
What is my ideal weight?
There is no single number. This tool shows several classic estimates (Devine, Robinson, Miller, Hamwi) plus a healthy weight range from BMI 18.5–24. Use the range as your reference, not one exact figure.
Which ideal weight formula is most accurate?
None is definitively 'best' — they were derived for medication dosing, not health targets. Comparing them and using the average, alongside your healthy BMI range, gives a sensible reference.
Is ideal body weight the same as a healthy weight?
Not exactly. Ideal body weight formulas estimate a single point from your height; a healthy weight is a range (BMI 18.5–24) that also depends on muscle, age and body composition.
Why do the formulas give different numbers?
Each formula was built from different data and eras, so their base values and per-inch increments differ. Differences of a few kilograms between them are normal.
Does ideal weight account for muscle?
No. These formulas use only height and sex. A muscular person can be healthy above their 'ideal' figure, so check body fat % or waist-to-height ratio too.
References & review
- Robinson J.D. et al. (1983). Determination of ideal body weight. American Journal of Hospital Pharmacy.
- Miller D.R. et al. (1983). Estimation of ideal body weight.
- Devine B.J. (1974). Gentamicin therapy / ideal body weight formula.
- Hamwi G.J. (1964). Therapy: changing dietary concepts.