Health & FitnessReviewed Methodology
Ideal Weight Calculator
This ideal weight calculator estimates a practical target weight using the Devine method and your height.
Quick answer
Ideal weight is estimated from height and sex using a standard formula.
What this tells you
- •Ideal weight is estimated from height and sex using a standard formula.
- •Results are estimates, not a diagnosis or strict target.
- •A target range helps account for natural body variation.
How to Use
- 1Enter your height.
- 2Select your sex.
- 3Choose the output unit (kg or lb).
- 4Calculate to see estimated ideal weight and a practical range.
How It Works
Formula
Male: 50 + 2.3 x (inches over 60), Female: 45.5 + 2.3 x (inches over 60)The Devine formula starts with a baseline and adds weight for each inch above 5 feet.
Calculation note: values are processed in the order shown above, using the current input units.
Worked Examples
Example estimate
Height175 cm
SexMale
ResultIdeal weight: 70.5 kg (range 63.4 to 77.5 kg)
Common mistakes
- Treating ideal weight as a strict medical goal
- Entering inches as centimeters
- Ignoring other health indicators such as body composition and activity
Limitations
Formula-based ideal weight does not capture individual differences in muscle mass, frame size, or medical context.
Frequently Asked Questions
Not always. Ideal weight formulas provide estimates. Healthy weight can vary by body composition, age, and medical factors.
This tool uses the Devine formula for an estimate based on height and sex.
Yes, as a reference point. Combine it with other metrics such as BMI, body fat estimates, and professional guidance.