Health calculator

Healthy Weight Calculator

Estimate an adult healthy weight range from height using the BMI 18.5 to 24.9 screening range, with a current BMI comparison.

FormulaLower weight = 18.5 x height(m)^2; upper weight = 24.9 x height(m)^2

Formula

Adult BMI healthy weight range

Healthy weight ranges are screening references and should not replace qualified medical advice.

Lower weight = 18.5 x height(m)^2; upper weight = 24.9 x height(m)^2

At 1.75 m, the adult BMI 18.5-24.9 range is about 56.7 kg to 76.3 kg.

SourcesThis calculator includes source notes, assumptions, and exclusions so the result is easier to verify before use.

Sources and assumptions

Source notes

This calculator includes source notes, assumptions, and exclusions so the result is easier to verify before use.

Effective year
Current rules
Last verified
2026-06-18

Healthy weight ranges are screening references and should not replace qualified medical advice.

Official and reference sources

Assumptions

  • The adult healthy range uses BMI 18.5 to 24.9.
  • Height is entered in centimeters and weight is entered in kilograms.
  • The current BMI card is shown only as a screening comparison.

Not included

  • Children and teen BMI percentiles, pregnancy, body composition, ethnicity-specific risk guidance, sports performance, and clinical diagnosis.
FAQ6 common questions for this calculator.

FAQs

Is healthy weight the same as ideal weight?+

No. Healthy weight uses a BMI screening range, while ideal weight formulas such as Devine estimate one reference weight from height and sex.

Can athletes use this healthy weight range?+

Athletes and people with higher muscle mass may read BMI differently because BMI does not measure body composition directly.

How does the Healthy Weight Calculator calculate the result?+

For the Healthy Weight Calculator, it uses the Adult BMI healthy weight range: Lower weight = 18.5 x height(m)^2; upper weight = 24.9 x height(m)^2. At 1.75 m, the adult BMI 18.5-24.9 range is about 56.7 kg to 76.3 kg.

What information do I need to use the Healthy Weight Calculator?+

For the Healthy Weight Calculator, enter height. Keep the units consistent with the calculator fields and compare your setup with the worked example on the page.

How accurate is the Healthy Weight Calculator?+

Healthy Weight Calculator is only as accurate as the height entered. It applies the Adult BMI healthy weight range shown on this page, then rounds for readability. Treat the output as screening guidance rather than a diagnosis.

What should I check before using the Healthy Weight Calculator result?+

For the Healthy Weight Calculator, check height, unit choices, and whether the calculator's assumptions fit the person being assessed. Use the result as screening or planning context, not as a diagnosis.

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Health guide

How to use the Healthy Weight Calculator

Estimate an adult healthy weight range from height using the BMI 18.5 to 24.9 screening range, with a current BMI comparison. The page also explains the adult BMI healthy weight range and shows a practical example: At 1.75 m, the adult BMI 18.5-24.9 range is about 56.7 kg to 76.3 kg.

  1. 1

    Enter your details

    Enter height using the BMI 18.5 to 24.9 screening range,, then complete any other fields shown in the calculator.

  2. 2

    Check the calculation

    Review the result alongside the adult BMI healthy weight range: Lower weight = 18.5 x height(m)^2; upper weight = 24.9 x height(m)^2.

  3. 3

    Compare scenarios

    Change one or more inputs to see how they affect the healthy Weight Calculator result before you use the estimate.