Ideal Weight Calculator (4 Formulas)
Devine, Robinson, Miller & Hamwi formulas plus a healthy BMI range · free, no signup
See Ideal Weight Calculator (4 Formulas) in action
Ideal Weight Calculator (4 Formulas)
Enter your sex, height and frame size and see your ideal weight by four classic formulas, their average, and the weight range that corresponds to a healthy BMI of 18.5 to 24.9. Add your current weight to see how far you are from the average.
Formulas were designed for average adults, so use the range rather than a single number. Muscle, bone structure and age matter more than any formula.
Key features
Four formulas
Devine, Robinson, Miller, Hamwi.
Frame size adjustment
Small, medium, large.
Healthy BMI range
A practical target.
kg and lb
Both shown.
Compare to now
Optional.
How to use it
- Choose sex and enter height.
- Select your frame size.
- Optionally enter your weight.
- Read the table and the healthy range.
Worked example
Example
175 cm man, medium frame: formulas give about 66–71 kg; the healthy BMI range is 56.7–76.3 kg.
Who uses this tool
Anyone setting a weight goal
A realistic range.
Fitness beginners
Context for BMI.
Tips for the best results
- Aim for the healthy range, not one number.
- Athletes with muscle can be above the range and healthy.
Common mistakes to avoid
- Treating the result as a rule.
Why use AZRS QuickFix?
It is 100% free, needs no signup and has no watermark or usage limits. The tool runs in your browser, so what you type stays on your device, and it works on phones, tablets and desktops. New tools are added every week — bookmark this page or browse the full QuickFix toolbox.
Frequently asked questions
Is it the same as BMI?
No. BMI classifies weight for height; this shows target weights and the BMI-based range for your height.
Is it free and private?
Yes. It is free with no signup, and everything is saved only in your own browser on this device.