Ideal Weight Calculator
Use this free ideal weight calculator to estimate a healthy weight range based on your height, gender, and commonly used ideal body weight formulas.
Calculate Your Ideal Weight
Enter your height and gender to estimate your ideal weight range.
Free Ideal Weight Calculator
An ideal weight calculator estimates a healthy body weight range using your height, gender, and body frame. It can be helpful for general weight planning, but it should not be used as a medical diagnosis.
What Is Ideal Body Weight?
Ideal body weight is an estimated weight range that may be suitable for a person’s height. Different formulas may give different results because they use different assumptions. Your personal healthy weight may be higher or lower depending on body composition and health status.
How This Calculator Works
This calculator uses height to estimate a healthy BMI-based weight range. It also shows results from commonly used ideal body weight formulas such as Hamwi, Devine, and Robinson formulas.
BMI-Based Range
Healthy weight = BMI × height²
Formula-Based Estimate
IBW = base weight + height adjustment
Ideal Weight Methods Used
| Method | What It Uses | Best Use |
|---|---|---|
| BMI Healthy Range | Height and BMI range 18.5–24.9 | General healthy weight range |
| Hamwi Formula | Height and gender | Traditional ideal body weight estimate |
| Devine Formula | Height and gender | Common clinical-style estimate |
| Robinson Formula | Height and gender | Alternative ideal weight estimate |
Why Ideal Weight Can Vary
Two people with the same height can have different healthy weights. Muscle mass, bone structure, body frame, body fat distribution, age, genetics, sex, ethnicity, exercise level, pregnancy, and medical history can all affect what weight is healthy for a person.
Ideal Weight vs BMI
BMI compares height and weight, while ideal weight formulas estimate a target weight from height. Both are general tools. Neither can directly measure body fat, muscle, waist size, blood pressure, blood sugar, cholesterol, fitness, or overall health.
How to Use Your Result
Use your result as a general guide, not a strict target. For better planning, compare it with your BMI, waist measurement, activity level, nutrition, energy, sleep, and medical risk factors. If you want to lose or gain weight, aim for gradual, realistic changes.
Important Health Disclaimer
This ideal weight calculator is for educational use only. It is not medical advice, diagnosis, or treatment. If you are pregnant, under 18, elderly, an athlete, underweight, have an eating disorder history, or have any medical condition, consult a qualified healthcare provider before setting a weight goal.
Ideal Weight Calculator FAQs
What is an ideal weight calculator?
An ideal weight calculator estimates a possible healthy weight range based on height, gender, body frame, and common ideal body weight formulas.
Is ideal weight the same for everyone?
No. Ideal weight can vary based on muscle mass, body frame, age, body fat, activity level, genetics, and medical history.
Which ideal weight formula is best?
No single formula is perfect for everyone. This calculator shows multiple estimates so you can compare a general range instead of relying on one number.
Can athletes use this calculator?
Athletes may have more muscle mass, so formula-based ideal weight may underestimate a healthy weight. Body composition and performance may be more useful than weight alone.
Should I lose weight to reach my ideal weight?
Not always. Weight goals should be based on overall health, not just a calculator. Speak with a healthcare provider if you are unsure about a safe weight goal.