Find your ideal body weight using four medical formulas and a BMI-based healthy range.
| Formula | Ideal Weight |
|---|
Each formula uses your height and gender to estimate an ideal body weight:
The BMI healthy range is calculated as 18.5 × height² to 24.9 × height². This gives the weight range where your BMI falls in the "normal" category. Use the range across all formulas as a general guide, not a strict target.
| BMI Range | Category | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | Increased risk of malnutrition |
| 18.5 – 24.9 | Normal (Healthy) | Low risk |
| 25.0 – 29.9 | Overweight | Increased risk of heart disease |
| 30.0 – 34.9 | Obese (Class I) | High risk |
| 35.0 – 39.9 | Obese (Class II) | Very high risk |
| 40.0 and above | Obese (Class III) | Extremely high risk |
No single formula is perfect for everyone. The BMI-based range (18.5-24.9) is the most widely used. The range across all four formulas gives a more realistic healthy weight zone.
Each formula was developed from different populations and studies. Hamwi (1964), Devine (1974), Robinson (1983), and Miller (1983) all used slightly different methodologies. Use the range across all formulas.
No, these formulas do not distinguish between muscle and fat. Athletes and bodybuilders may weigh more than their "ideal" weight due to higher muscle mass. Focus on body composition, not just the number.
The BMI-based healthy range is the best guide. For example, at 170 cm: healthy range is 53.5-72.2 kg (BMI 18.5-24.9). Use this calculator to find your specific range.
No. These are estimates. Focus on how you feel, your energy levels, and overall health markers rather than hitting a specific number. A range is more useful than a single target.