




Discover your Ideal Body Weight with our calculator, using Hamwi, Devine, Robinson, and Miller formulas. Includes healthy BMI ranges and both metric and imperial input options.
What's Your "Ideal" Weight Anyway?
Spoiler alert - there isn't any single magic number. But scientists have been trying to figure out an approximate estimate, mainly so doctors could compute medicine doses safely. What did that get them? A whole bunch of different formulas (Hamwi, Devine, Robinson, Miller) that all estimate your ideal weight a little differently.
Different Methods
Imagine them four different chefs making the same recipe but fighting over whether to add salt. The numbers won't always add up, but they'll get you close enough.
How Our Calculator Works
Input your height and gender, choose your units (metric or imperial), and we'll show you all four IBW calculations, plus the official Healthy BMI weight range for your height.
Ideal Body Weight Calculator
Final Word – Jeans?
So, which formula is right? Hamwi? Devine? Robinson? Miller?
Truth is, none of them know your story. They just crunch numbers. Use these results as a guide, not a verdict. If the formulas say one thing but your mirror, your doctor, and your jeans say another… trust the jeans.





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