health ToolUpdated 2026-09-19
Ideal Weight Calculator
Find your healthy target weight range based on clinical formulas (Devine, Robinson, and WHO BMI bounds).
Important Medical Disclaimer: This health tool is designed solely for informational, screening, and educational purposes. It does not provide medical diagnosis, treatment, or individualized clinical advice. Always consult a qualified physician or healthcare provider regarding any health condition.
Formula & Mathematical Methodology
Devine Formula: Men: 50 kg + 2.3 kg per inch over 5 ft
Computes benchmark clinical ideal body weight (IBW) frequently used in pharmacology.
How to Use This Ideal Weight Calculator
- Select sex and enter height in centimeters.
Step-by-Step Worked Example
Scenario: Male, 178 cm (approx 70.08 inches, 10 inches over 5 ft)
1. Base 50 kg + (2.3 × 10.08) ≈ 73.2 kg ideal weight
2. Healthy BMI range (18.5 - 24.9): 58.6 kg to 78.9 kg
Final Calculated Result: 73.2 kg (Healthy Range: 58.6 – 78.9 kg)
What Does Your Result Mean?
Offers a realistic reference bracket rather than a single restrictive target number.
Common Practical Applications:
- Clinical medication dosing
- Long-term fitness goal setting
Important Limitations & Assumptions:
- Individual frame size and bone density influence healthy weight.
Frequently Asked Questions
What is the Devine Formula?
Developed in 1974 by Dr. Ben Devine, it is the most widely utilized medical formula for estimating ideal body weight.
Related Calculators
BMI Calculator (Body Mass Index)
Calculate Body Mass Index (BMI) and healthy weight classification.
BMR Calculator (Basal Metabolic Rate)
Calculate your baseline daily calorie burn at complete rest.
Calorie Calculator
Estimate daily calorie requirements based on your physical activity.
Body Fat Calculator
Estimate body fat percentage using body circumference measurements.