Ideal Weight Calculator
Calculate your ideal body weight based on height, gender, and body frame size using established medical formulas.
* All calculations are approximate.
How Ideal Weight Calculator Works?
Calculate your ideal body weight based on height, gender, and body frame size using established medical formulas.
Enter your height, gender, and body frame size (small, medium, or large).
The calculator applies the Devine formula to estimate your ideal body weight based on height and gender.
For men: 50 kg + 2.3 kg per inch over 5 feet. For women: 45.5 kg + 2.3 kg per inch over 5 feet.
The result is adjusted by frame size — small frames reduce by approximately 10%, large frames increase by approximately 10%.
A healthy weight range and the BMI at your ideal weight are calculated and displayed.
Formula Used
Men: Ideal Weight = 50 + 2.3 x (height in inches - 60) | Women: Ideal Weight = 45.5 + 2.3 x (height in inches - 60)
Ideal weight formulas provide general guidelines. Your personal ideal weight depends on muscle mass, body composition, fitness level, and overall health markers. Use this as a reference range, not an absolute target.
Important — Read Before You Decide
- Ideal weight formulas provide general guidelines, not absolute targets for every individual
- Body frame size significantly affects what constitutes a healthy weight at any given height
- Muscle mass, bone density, and body composition are not captured by ideal weight formulas
- The Devine formula (used commonly in medicine) was originally designed for drug dosage calculations, not health assessment
- Ideal weight ranges differ across ethnicities and populations
- Your personal ideal weight may differ from calculated values based on your fitness level and health markers
- Mental health and body image should be considered — obsessing over a number can be harmful
- Always discuss weight goals with a healthcare professional for personalized guidance
What Happens If You Ignore These?
- Setting unrealistic weight targets can lead to disordered eating and body image issues
- Being significantly over or under your ideal weight range increases risk of chronic diseases
- Ignoring frame size can lead to inappropriate weight goals — a large-framed person may be healthy at a higher weight
- Rapid weight loss to reach an ideal number can cause muscle loss, nutritional deficiencies, and metabolic slowdown
- Not knowing your healthy weight range makes it harder to set meaningful fitness goals
Smart Tips
- Use ideal weight as a reference range, not an exact target to obsess over
- Determine your frame size by wrapping your thumb and index finger around your wrist — if they overlap, you are small-framed; if they touch, medium; if they do not meet, large
- Focus on body composition (muscle vs. fat) rather than the number on the scale alone
- Combine ideal weight calculations with BMI and body fat percentage for a more complete picture
- Set gradual weight goals — aim for 0.5-1 kg per week if you need to lose or gain weight
Frequently Asked Questions
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