Healthy Weight Calculator

What this healthy weight calculator does

This calculator translates the adult BMI range of 18.5 to 25 into a weight range for your height. It is a reference range, not a personal target or a diagnosis.

For a height of 5 ft 10 in, the range is about 129 to 174 lb.

How to use this calculator

1. Choose US or metric units.
2. Enter your height.
3. Click Calculate to see the lower and upper ends of the healthy BMI weight range.

The calculator does not ask for weight because it is calculating the range for a given height, not evaluating your current weight.

Healthy weight formula

Low weight = 18.5 × height(m)²
High weight = 25 × height(m)²

The result is converted to pounds if you chose US units and rounded to the nearest whole pound or kilogram.

What the results mean

• Lower end: the weight that would produce a BMI of 18.5.
• Upper end: the weight that would produce a BMI of 25.
• BMI range: the adult range used, 18.5 to 25.

A weight inside the range is associated with a lower risk of weight-related health problems for many adults, but BMI is only one screening measure. Body composition, waist circumference, blood pressure, blood glucose, and lifestyle also matter.

Assumptions and limitations

The range is for adults. Children and teenagers use age- and sex-specific BMI percentiles. The range does not account for pregnancy, very high muscle mass, frame size, or medical conditions, and it may not fit athletes or older adults well.

Use the range as a starting point for a conversation with a clinician, not as a goal imposed on everyone of the same height.

Frequently asked questions

Is the range the same for men and women?

The BMI-based range is the same for both sexes at a given height. Body composition and health risks can differ, so the interpretation may differ.

What if I am outside the range but healthy?

BMI is a screening tool. A muscular athlete may be above the range with low body fat; an older adult may be healthy at a different weight. A clinician can assess the full picture.

Does age change the range?

The 18.5–25 BMI range is used for adults. Older adults may have different health considerations, and children use percentiles.

Can I use this to set a weight-loss goal?

Use it as context, not a prescription. A safe goal depends on your health, body composition, and history. Discuss it with a clinician or registered dietitian.

Source

References:

• CDC — Adult BMI Calculator
• National Heart, Lung, and Blood Institute — Calculate your BMI

Disclaimer

This calculator is for informational and educational purposes only. It is not medical advice or a personalized weight goal. Discuss weight and health goals with a qualified clinician.