Ideal weight calculator
HealthEstimate a healthy weight range from your height and sex using a classic Devine-based formula.
Your results
See your healthy weight range based on height and build.
How ideal weight is estimated
This calculator uses the Devine formula as a midpoint estimate and then provides a small range around it to keep the output more practical and less rigid.
Why weight ranges matter
Healthy body weight is influenced by frame size, muscle mass, and genetics. A useful calculator should suggest a range rather than a single fixed number.
Frequently asked questions
Answers to the most common questions about this tool.
How is this result calculated?
It uses the method and inputs described on this page to provide an informational estimate.
How accurate is the result?
It is an estimate and should be interpreted as a guide, not an exact measurement.
When should I seek professional advice?
Seek qualified advice for symptoms, pregnancy, illness, medication use, or clinical decisions.
What information do I need to enter?
Enter current, accurate details and select the correct units before calculating.
What can affect this estimate?
Individual factors such as health, activity, body composition, and measurement technique can affect it.
Sources and methodology
Methodology: Reference weight range
Calculates the midpoint with the Devine equation and shows a ±5 kg range created by ToolsRL.
The range is not an individual clinical recommendation.
References
Last reviewed
July 15, 2026