Ideal Body Weight Calculator

Estimate a reference ideal bodyweight range using the Devine formula.

Your numbers
Your inputs

Reference ideal weight

Enter your numbers above.

Not sure which body type category you lean toward? Take the Body Type Quiz quiz.

Take the quiz

About the Devine formula

The Devine formula was originally developed to help estimate drug dosing in clinical settings, not as a fitness benchmark, but it's widely cited as a general reference weight based on height.

It doesn't account for muscle mass, frame size, or individual body composition, so athletes and muscular individuals will often sit well above this number without being overweight. Treat it as a loose historical reference rather than a personal target.

If your height is in centimeters rather than inches, run it through the height converter first, and see the body shape calculator or body type quiz for a sense of overall proportion instead of a single reference weight.

Where these numbers come from

The formulas and default values in this calculator are based on:

  • Devine, B.J. (1974), "Gentamicin therapy," Drug Intelligence & Clinical Pharmacy — original Devine formula for ideal bodyweight estimation

These are planning estimates for training purposes. Check with a coach, trainer, or physician before starting a new program or maxing out.

Frequently asked questions

Is this formula meant for fitness goals?

No, it was originally developed for medical dosing calculations, not as a fitness or physique target.

Should athletes use this as a weight goal?

Not really — it doesn't account for muscle mass, so muscular athletes will typically weigh more than this figure while still being lean and healthy.

Are there other ideal weight formulas?

Yes, Robinson, Miller, and Hamwi formulas are other commonly cited variants, all producing similar but slightly different reference numbers.

All AthleteCalcs tools