What Is Your Ideal Weight for Your Height?

There is no single ideal weight for every person of the same height. For adults age 20 and older, a BMI of 18.5 to less than 25 is the standard healthy-weight screening range, but muscle, waist size, medical history, and other factors also matter [1][2]. The Ideal Weight Calculator shows both that BMI-based range and a separate estimate from the Devine formula. Treat both as starting points for understanding your numbers, not instructions to reach one exact weight.

What does ideal weight really mean?

Ideal weight is an estimate based on a method, not a medically guaranteed target. This calculator presents a broad range derived from adult BMI categories and a single reference value from the historical Devine equation [1][3]. Two people of the same height may have different body compositions, health conditions, and appropriate goals. For context on the screening category itself, compare your measurements with the BMI Calculator.

How do you calculate a healthy weight range by height?

Multiply the square of your height in meters by 18.5 for the lower boundary and by 24.9 for an approximate upper reference [1]. For example, at 5 feet 10 inches (1.778 meters), the BMI-based range is about 129 to 174 pounds (58.5 to 78.7 kg). The actual upper BMI category boundary is below 25, so this range is a rounded educational estimate rather than a precise clinical cutoff. The calculation is intended for adults, not children or teens.

How does the Devine ideal body weight formula work?

The Devine formula uses height and sex to estimate a reference body weight. At 5 feet, its starting values are 50 kg for men and 45.5 kg for women, with 2.3 kg added for each inch above 5 feet [3]. At 5 feet 10 inches, that gives 73.0 kg (about 161 lb) for a man or 68.5 kg (about 151 lb) for a woman. Developed for clinical drug-dosing calculations, this equation is not a personalized health goal; do not use its output to decide medication doses [3].

Why are the BMI range and Devine result different?

They answer different questions. BMI converts height into a broad adult screening band, while Devine uses a historical sex-specific equation to produce one reference number [1][3]. Their results do not need to match, and neither directly measures fat mass or muscle. If body composition is your main concern, the Body Fat Calculator provides a separate circumference-based estimate, with its own measurement limitations.

Does age, sex, or muscle mass change the answer?

Standard adult BMI categories do not change by age or sex, but the meaning of a result depends on the person [1][2]. The Devine equation has different constants for men and women, yet it does not measure muscle, fat distribution, or changes associated with aging. An athlete and a less muscular adult could receive the same estimate at the same height. Read our healthy BMI by age guide for age-related context, especially for older adults.

When can an ideal weight calculator be misleading?

A weight-for-height calculation can miss central abdominal fat, low muscle mass, fluid retention, and other factors that affect health [2][4]. It is not suitable for applying adult BMI thresholds to children or teenagers, and pregnancy requires a different weight-assessment approach. People whose height or body composition is altered by illness or disability may also need individualized assessment. The Lean Body Mass Calculator offers another estimate, while our guide to lean body mass explains what lean mass includes and what a scale misses.

What should you do if your weight falls outside the range?

Start by looking beyond the calculator output. A clinician can consider blood pressure, blood glucose, cholesterol, waist size, symptoms, and relevant medical history alongside your weight [2][4]. If weight loss is appropriate for you, the CDC recommends sustainable changes in eating, activity, sleep, and stress rather than chasing an arbitrary number [5]. An outside-range result alone does not mean you need to lose or gain weight.

People also ask

What is a healthy weight for a 5-foot-10 adult?

Using adult BMI screening boundaries, someone 5 feet 10 inches tall has an approximate healthy-weight range of 129 to 174 pounds (58.5 to 78.7 kg). This is a broad population range, not a personalized prescription. Muscle mass, waist circumference, and medical history can change how useful the numbers are [1][2].

Why does the ideal weight calculator ask for sex?

The Devine formula uses different starting values for men and women, so the calculator needs that input for its single-number estimate [3]. The BMI-based range, however, uses the same adult cutoffs regardless of sex. Neither approach directly measures muscle or body fat, and sex-specific equations have important limitations.

Can I use the Devine number as my weight-loss goal?

Not automatically. Devine was developed as a clinical reference, including applications in medication calculations, rather than as an individualized weight-loss target [3]. A suitable health goal should consider your starting point, strength, blood pressure, lab results, and preferences. If weight management is medically relevant, discuss a realistic plan with a qualified professional [4][5].

Is an ideal weight calculator accurate for athletes?

It can be misleading for people with unusually high muscle mass. BMI counts muscle and fat together, and the Devine estimate does not measure body composition [2][3]. For an athlete, waist measurements, performance, clinical markers, and a suitable body-composition assessment may offer a fuller picture than one weight number.