Ideal Weight Calculator

See the reference weight for your height from four well-known formulas, along with the healthy weight range based on BMI.

Units
Sex
Healthy weight range (BMI 18.5–24.9)
–
Devine (1974)–
Robinson (1983)–
Miller (1983)–
Hamwi (1964)–

Ideal body weight formulas

FormulaMenWomen
Devine50 kg + 2.3 kg per inch over 5 ft45.5 kg + 2.3 kg per inch over 5 ft
Robinson52 kg + 1.9 kg per inch49 kg + 1.7 kg per inch
Miller56.2 kg + 1.41 kg per inch53.1 kg + 1.36 kg per inch
Hamwi48 kg + 2.7 kg per inch45.5 kg + 2.2 kg per inch

Worked example

A man who is 5 ft 10 in is 10 inches over 5 feet. The Devine formula gives 50 + 2.3 × 10 = 73 kg (161 lb). His healthy BMI range at that height is about 129 to 174 lb, a much wider band.

Ideal weight chart by height

HeightMen (Devine)Women (Devine)Healthy BMI range
5 ft 0 in110 lb100 lb95–127 lb
5 ft 2 in120 lb110 lb101–136 lb
5 ft 4 in131 lb121 lb108–145 lb
5 ft 6 in141 lb131 lb115–154 lb
5 ft 8 in151 lb141 lb122–164 lb
5 ft 10 in161 lb151 lb129–174 lb
6 ft 0 in171 lb161 lb136–184 lb
6 ft 2 in181 lb171 lb144–194 lb
6 ft 4 in191 lb181 lb152–205 lb

To see where your current weight falls, use the BMI calculator. For a measure that looks at body composition, try the body fat calculator. This tool is for general information and is not medical advice.

Last reviewed October 2026.

Frequently asked questions

What is an ideal weight?

There is no single perfect weight for anyone. "Ideal body weight" formulas were created mainly to estimate drug doses, and they give a rough reference weight for a height. A healthy weight range based on BMI (18.5 to 24.9) is a broader and more useful guide for most adults.

Why do the formulas give different answers?

Each was fitted to different data at different times. Devine (1974) is the most widely used, Robinson and Miller (1983) are revisions, and Hamwi (1964) is an older rule of thumb. They usually agree within a few kilograms for average heights.

Do these formulas work for short people?

They are based on height above 5 feet, so they become less reliable for adults under about 5 ft (152 cm). The BMI-based range still works at any adult height.

Do they consider muscle or frame size?

No. They only use height and sex. Someone with a large frame or a lot of muscle can be healthy above these numbers. That is why the healthy BMI range is shown alongside.

Is this medical advice?

No. It is general information for adults. A doctor can help you understand what a healthy weight looks like for you.