Skip to content

Healthy Weight Calculator

Find the range of weights considered healthy for your height, and how much you would need to lose or gain to reach it.

Formulas last reviewed: September 2026

Disclaimer: Results are general estimates for information and education only. They are not medical advice, a diagnosis or a treatment plan. Please talk to a doctor or qualified health professional before making health, diet, exercise or pregnancy decisions.

What is a healthy weight?

A healthy weight is a range, not a single number. It is the weight at which the risk of weight-related illness is lowest for your height. Doctors define it using body mass index.

This calculator gives the range of weights for your height on either the Asian (India) BMI cut-offs or the standard WHO cut-offs, and shows how far your current weight is from it.

How it is calculated

Weight = BMI × height (m)²
Healthy range: BMI 18.5 to 22.9 (Asian) or 18.5 to 24.9 (WHO)

Worked example

Height 170 cm

BMI 18.5
53.5 kg
BMI 22.9 (Asian upper)
66.2 kg
BMI 24.9 (WHO upper)
72 kg

Beyond the number

  • Waist circumference and fitness tell you more than the scale alone.
  • Older adults may be healthier at the higher end of the range.
  • Muscle is dense — athletes may weigh above the range and still be healthy.

Frequently asked questions

Why are there two healthy ranges?

South Asians develop diabetes and heart disease at lower BMI, so the Asian upper limit is 22.9 instead of 24.9. Choose the range your doctor recommends.

Is being underweight unhealthy?

It can be. A BMI below 18.5 can mean nutritional deficiency, weak bones and low immunity. See a doctor if your weight is very low or falling unintentionally.

How quickly should I move into the healthy range?

A steady change of 0.25 to 0.5 kg a week is realistic. Lasting habits matter more than speed.

Does this work for teenagers?

No. It is designed for adults 18 and over. Children use growth charts based on age.