Ideal Weight Calculator (IBW)

This Ideal Weight Calculator can help you estimate your healthy weight based on your age, gender and height, by 5 different formulas and recommended BMI.

Ideal body weight (IBW) formulas

Ideal weight is a concept that defines one’s healthy level of body weight. Whilst there are several formulas available, all of these are estimates that can be used on generic populations, based on variables such as gender, height or age.

Peterson’s formula (2016)

The latest published ideal weight formula is that of Peterson et al. whose accuracy was evaluated through theoretical and empirical means.

Ideal Weight (kg) = 2.2 x BMItarget + 3.5 x BMItarget x (Height (m) - 1.5 m)

Ideal Weight (lb) = (5 x BMItarget ) + (BMItarget / 5)) x (Height (in) - 60 in)

R. Miller’s formula (1983)

Ideal Weight (men) = 56.2 kg + 1.41 kg per inch over 5 feet

Ideal Weight (women) =53.1 kg + 1.36 kg per inch over 5 feet

J.D. Robinson’s equation (1983)

Ideal Weight (men) = 52 kg + 1.9 kg per inch over 5 feet

Ideal Weight (women) = 49 kg + 1.7 kg per inch over 5 feet

J. Devine’s equation (1974)

Ideal Weight (men) = 50.0 kg + 2.3 kg per inch over 5 feet

Ideal Weight (women) = 45.5 kg + 2.3 kg per inch over 5 feet

J. Hamwi’s formula (1964)

Ideal Weight (men) = 48.0 kg + 2.7 kg per inch over 5 feet

Ideal Weight (women) = 45.5 kg + 2.2 kg per inch over 5 feet

IBW estimation based on the BMI healthy range

IBW min = 18.5 x BMI

IBW max = 25 x BMI

This Ideal Body Weight Calculator is the perfect app for health conscious individuals and fitness enthusiasts and allows you to check your weight goals in time.