Health & Fitness

Healthy Weight Range Calculator

What weights fall in the normal BMI range for your height?

Your numbers

Your results

Lower end, BMI 18.5 (kg)
Lower end, BMI 18.5 (kg)
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Upper end, BMI 25 (kg)
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Your BMI
—
Kilograms above or below the range
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Healthy Weight Range Calculator by TheCalcTools

How the Healthy Weight Range Calculator works

Enter your height and current weight.

The range comes from rearranging the BMI formula for the WHO normal range.

Your own BMI is shown alongside.

The formula

weight = BMI × height²range: BMI 18.5 to 25

Worked example

Using the default values shown in the calculator:

Height (cm)175
Current weight (kg)82
  1. Height 1.75 m, so height² = 3.0625.
  2. Lower end = 18.5 × 3.0625 = 56.7 kg; upper end = 25 × 3.0625 = 76.6 kg.
  3. At 82 kg your BMI is 26.8: +5.4 kg above the range.

Result:

Lower end, BMI 18.5 (kg)56.7
Upper end, BMI 25 (kg)76.6
Your BMI26.8
Kilograms above or below the range+5.4 kg above the range

Frequently asked questions

Is BMI a good measure for everyone?

It is a screening tool. It does not distinguish muscle from fat, and cut-offs may differ for some ethnic groups and for older adults.

What if I am outside the range?

It is a prompt to look at other measures such as waist size, diet, activity and blood tests, ideally with a health professional.

Sources and further reading

More in Health & Fitness · All calculators

This calculator gives general estimates for information and education. It is not medical advice and does not diagnose anything. Talk to a qualified health professional about your own situation. See our disclaimer.