Ideal Weight Calculator - Devine Formula

  • Male
  • Female
Results
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Estimate your ideal body weight with our Ideal Weight Calculator using the Devine formula — the most widely cited ideal-weight equation, originally developed in 1974 for medication dosing. Enter your gender and height to get the ideal weight plus a ±10% healthy range.

The calculator also shows the BMI-based healthy weight range (BMI 18.5-24.9) for your height, which is typically wider and more practical than a single formula figure. Comparing both gives a realistic picture of where a healthy weight sits for your frame.

Keep in mind these are population estimates: muscle mass, body composition, and frame size all matter. A muscular athlete may sit above the Devine figure and be in excellent health. Use the result as orientation — not a prescription — and pair it with our BMI and Body Fat calculators for a fuller picture of your body composition.

Kaava
Devine: men 50 kg + 2.3 kg per inch over 5 ft; women 45.5 kg + 2.3 kg per inch over 5 ft. Range shown as ±10%

Usein kysytyt kysymykset

What is the Devine formula?
The Devine formula (1974) sets ideal weight at 50 kg for men and 45.5 kg for women at 5 feet, adding 2.3 kg per additional inch. It was created for drug dosing and remains the most cited ideal-weight formula.
How accurate is the ideal weight formula?
It is a population estimate, not a personal prescription. Body composition, muscle mass, and frame size matter — a muscular athlete can be "over" ideal weight and perfectly healthy. Treat the range as a rough guide.
What is a healthy BMI-based weight range?
A BMI between 18.5 and 24.9 is the standard healthy range. The calculator also shows this range for your height, which is usually wider and more forgiving than the Devine figure.
Should I aim exactly for ideal weight?
No. Use it as a reference point, not a target. Sustainable habits, strength, and how you feel matter more than one number. Consult a healthcare professional for personal guidance.

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