Estimate your ideal body weight from your height and sex using the Devine, Robinson, Miller and Hamwi formulas, plus a healthy BMI-based range.

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Estimates from four established formulas plus a healthy BMI range.
Calculate your Body Mass Index (BMI) instantly with metric or imperial units. See your category, the WHO ranges, and what BMI does and does not tell you.
Try it nowFind out how many calories your body burns at rest with our BMR calculator using the Mifflin-St Jeor equation. The first step to planning your daily calorie needs.
Try it nowEstimate your body fat percentage from simple tape measurements using the U.S. Navy method. See your body fat category and what it means for your goals.
Try it nowEstimate your ideal body weight from your height and sex using the Devine, Robinson, Miller and Hamwi formulas, plus a healthy BMI-based range.

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This calculator uses several established formulas (Devine, Robinson, Miller, and Hamwi) based on your height and sex, and also shows the healthy weight range for your height from BMI 18.5–24.9.
No. Ideal weight formulas give estimates, not exact targets. Muscle mass, frame size, and body composition all matter, so treat the result as a healthy range rather than a single number.