Ideal Weight Calculator
Find a healthy weight range for your height.
Estimate a healthy weight for your height using four classic formulas (Devine, Robinson, Miller, Hamwi) alongside the healthy weight range from a BMI of 18.5–25. Choose metric or imperial; it's calculated in your browser.
“Ideal weight” formulas are rough estimates that don't account for build, muscle, or age. Use the healthy BMI range as a guide and consult a professional for advice.
Runs entirely in your browser — nothing is uploaded.
How to use the ideal weight calculator
- 1Choose metric or imperial and your sex.
- 2Enter your height.
- 3See the healthy range and each formula's estimate.
Frequently asked questions
Which is the right number?
There's no single 'ideal' — the formulas give a range, and the healthy BMI range is a good practical guide. They don't account for muscle or build.
Are these formulas accurate for everyone?
No — they're rough estimates and less accurate for very short/tall people, athletes, or children. Treat them as a guideline.