Body composition

Ideal body weight calculator

Compare four historical weight equations and the adult BMI reference range.

Free · No account neededMethod & sources

YOUR INPUTS

Your measurements

Measurement units

The source equations are published separately for males and females. Choose the category the equation uses.

The frame adjustment is a traditional approximation, not a measured correction.

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YOUR RESULT

Start with your numbers.

Compare four historical weight equations and the adult BMI reference range. Complete the fields to see the calculation, method, and limits.

UNDERSTAND THE METHOD

How to use this calculator

Choose the source equation category, enter height, and select a frame adjustment. The four equations use height above 60 inches. This implementation uses one published set of kilogram coefficients. Other published sources print some coefficients differently; compare the named formula and displayed coefficients before comparing results. The displayed average summarizes the four arithmetic results; it is not a personal target.

What the result can tell you

These historical equations do not identify a weight that is ideal for an individual. Their origins, samples, and purposes differ. This comparison is for adults at least 152.4 cm tall and does not calculate a medication dose. BMI reference weights are screening context and do not account for muscle, pregnancy, or individual medical conditions.

Ideal body weight by height: four formulas and the BMI range

For a woman 5 ft 3 in tall, the four formulas give 115 to 126 lb (52.0 to 57.2 kg). Adult BMI puts the healthy-weight range at that height at 105 to 141 lb (47.4 to 64.0 kg). For a man 5 ft 10 in tall, the formulas give 155 to 165 lb (70.3 to 75.0 kg), and the BMI range is 129 to 174 lb (58.5 to 79.0 kg).

Each formula starts from a base weight at 5 feet and adds a fixed amount for every inch above it, so none is defined below 5 feet. The tables below are the calculator's own results at each height with the medium frame, rounded to the nearest pound from the tenth the calculator shows. The small and large frame settings take 10% off or add 10% to the four formula columns only. The BMI range column is the adult healthy-weight category, 18.5 to below 25, rounded inward so both ends sit inside it.

Women: ideal body weight by height, in pounds (medium frame)

HeightDevineRobinsonMillerHamwiBMI range
5 ft 0 in10010811710095–128
5 ft 1 in10511212010598–132
5 ft 2 in111116123110102–136
5 ft 3 in116119126115105–141
5 ft 4 in121123129120108–145
5 ft 5 in126127132124112–150
5 ft 6 in131131135129115–154
5 ft 7 in136134138134119–159
5 ft 8 in141138141139122–164
5 ft 9 in146142144144126–169
5 ft 10 in151146147149129–174
5 ft 11 in156149150153133–179
6 ft 0 in161153153158137–184

Men: ideal body weight by height, in pounds (medium frame)

HeightDevineRobinsonMillerHamwiBMI range
5 ft 2 in120123130118102–136
5 ft 3 in125127133124105–141
5 ft 4 in131131136130108–145
5 ft 5 in136136139136112–150
5 ft 6 in141140143142115–154
5 ft 7 in146144146148119–159
5 ft 8 in151148149153122–164
5 ft 9 in156152152159126–169
5 ft 10 in161157155165129–174
5 ft 11 in166161158171133–179
6 ft 0 in171165161177137–184
6 ft 1 in176169164183141–189
6 ft 2 in181173167189145–194
6 ft 3 in186178171195149–200
6 ft 4 in191182174201152–205

The formulas were made for other jobs. Hamwi and Devine became common short calculations, and Robinson and Miller later fitted theirs to life-insurance height-and-weight tables in work on drug dosing. None of them measures fat or muscle or sets a weight that is best for you. The BMI range is wider because it covers a band of weights rather than one number, and CDC calls BMI a screening measure to be considered with other factors when assessing someone's health.

Common questions

Why do the four historical equations give different values?

They use different published equations and origins. The calculator applies the selected frame adjustment to each equation and shows the four results separately.

What is the ideal weight for a 5 ft 3 in woman?

With the medium frame, the four formulas give 115 to 126 lb (52.0 to 57.2 kg): Hamwi 115 lb, Devine 116, Robinson 119 and Miller 126. The adult BMI healthy-weight range at 5 ft 3 in is 105 to 141 lb (47.4 to 64.0 kg). The table on this page lists every height from 5 ft 0 in to 6 ft 0 in for women and 5 ft 2 in to 6 ft 4 in for men. None of these numbers is a personal target.

Is the average a target weight or a medication dose?

No. The average is a comparison summary, not an individual ideal weight. This calculator does not calculate a medication dose.

Sources & limitations3 sources

Sources checked September 12, 2026. These notes identify methods and assumptions. They have not received an independent clinical review.

  1. Robinson and colleagues developed weight equations for drug dosage calculations.pubmed.ncbi.nlm.nih.gov
  2. A comparative study explains the limits of historical ideal-weight equations.pmc.ncbi.nlm.nih.gov
  3. Adult BMI categories use a healthy-weight interval from 18.5 to below 25.cdc.gov