About This Tool
The Ideal Weight Calculator helps you estimate a healthy weight range for your height using the Body Mass Index (BMI) framework. While BMI is not a perfect measure of individual health—since it doesn't account for muscle mass, bone density, or body composition—it provides a useful starting point for understanding whether your weight falls within a range associated with lower health risks. This tool is commonly used by individuals setting weight loss or fitness goals, by healthcare professionals during routine checkups, and by anyone curious about their general wellness. For example, a person who is 5'8" tall can see what weight range corresponds to a BMI between 18.5 and 24.9, which is considered normal. Keep in mind that your ideal weight may vary based on age, gender, and activity level, so use this calculator as a guideline rather than a strict target.
How It Works
The Ideal Weight Calculator uses the standard BMI formula: BMI = weight (kg) / height (m)². To find the ideal weight range, we take your height and calculate the weight values that correspond to a BMI of 18.5 (lower end of normal) and 24.9 (upper end of normal). For example, if your height is 1.75 meters, the lower ideal weight is 18.5 × (1.75)² ≈ 56.7 kg, and the upper ideal weight is 24.9 × (1.75)² ≈ 76.2 kg. The result is presented as a range in both kilograms and pounds.
Examples
- A woman who is 5'6" (1.68 m) tall: her ideal weight range is 18.5 × (1.68)² ≈ 52.2 kg (115 lbs) to 24.9 × (1.68)² ≈ 70.3 kg (155 lbs).
- A man who is 6'0" (1.83 m) tall: his ideal weight range is 18.5 × (1.83)² ≈ 61.9 kg (136 lbs) to 24.9 × (1.83)² ≈ 83.4 kg (184 lbs).
Pro Tips
- For a more personalized assessment, consider using body fat percentage or waist-to-hip ratio alongside BMI, especially if you are athletic or have high muscle mass.
- Always consult with a healthcare provider before starting any weight loss or gain program; this calculator is a general guide, not a medical diagnosis.
- Track your weight trends over time rather than fixating on a single number—consistent small changes are more sustainable.