What is an Ideal Weight Calculator?
An Ideal Weight Calculator estimates a healthy body weight for your height and sex, using the Devine and Robinson formulas and the healthy BMI range.
These formulas were made for medical dosing and give a single number, while a healthy weight is really a range. Body frame and muscle mass also matter.
How to use the Ideal Weight Calculator
- Select sex.
- Enter height.
- Tap Calculate to see the result.
- Tap Reset to clear the fields and try again.
Who should use it
- Adults setting a weight goal
- People checking whether their weight is in a healthy range
- Fitness beginners
Key terms
- Devine formula
- A common formula based on height and sex.
- Healthy BMI range
- Weights that give a BMI between 18.5 and 24.9.
Frequently asked questions
Which result should I use?
Use the BMI range as a guide; the formulas give single reference points.
Does it work for athletes?
Not well. Muscle weighs more than fat.
Is this medical advice?
No. Consult a doctor.
Is my data stored?
No. Everything you enter stays in your browser.
Last updated: 1 November 2026