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Ideal Weight Calculator – Find a Healthy Weight Range

Enter your height to see an adult BMI-based weight reference range and its midpoint. Choose metric or imperial units.

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Midpoint of the reference range

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A reference value, not a personal target

Adult BMI-based reference range

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BMI is a screening measure, not a diagnosis. This adult reference range may not fit every person.

Runs in your browser – your data never leaves your device Also available via our free API

How to use the Ideal Weight Calculator

  1. 1 Choose metric or imperial units.
  2. 2 Enter your height.
  3. 3 Compare the estimated reference range and its midpoint, shown in kilograms or pounds.

What does “ideal weight” mean?

There is no single ideal weight that applies to everyone. This calculator shows a height-based reference range derived from the adult BMI interval 18.5 to 24.9, plus the midpoint of that range as a convenient reference value. It does not account for age, body composition, health history or other individual factors.

How this ideal weight calculator works

For the height you enter, the calculator converts the BMI values 18.5 and 24.9 into corresponding weights. In metric units, weight is BMI × height in metres squared. It converts the resulting weights to pounds when you select imperial units. The midpoint is the average of the two endpoint weights; it is not a separate medical recommendation.

The Centers for Disease Control and Prevention lists 18.5 to 24.9 as the healthy weight BMI category for adults and describes BMI as a screening measure, not a diagnosis (CDC adult BMI calculator). A BMI-based range is a broad reference and may not reflect an individual's health or body composition.

Consider your individual context

BMI does not distinguish between muscle, fat and bone, and the same BMI may mean different things for different people. This tool is intended as general information for adults aged 20 and older, not a personal goal or a treatment plan. Children and teenagers require age- and sex-specific growth assessment. Talk with a qualified healthcare professional about what a weight range means for you.

Frequently asked questions

How is the reference weight range calculated?

It converts adult BMI values of 18.5 and 24.9 into weights for your height. The midpoint is simply the average of those two weights.

Is the midpoint my ideal weight?

Not necessarily. It is only the middle of a broad BMI-based reference range, not an individualized target or medical recommendation.

Does BMI measure body fat directly?

No. BMI uses height and weight as a screening measure and does not distinguish fat from muscle or bone.

Is this calculator for children?

No. It shows an adult reference range. Children and teenagers need age- and sex-specific BMI percentiles and growth assessment.

What does “healthy weight” mean here?

It refers to the adult BMI category from 18.5 to 24.9 used as a general screening reference. It does not determine an individual’s health.

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