Ideal Weight Calculator
Calculate your ideal body weight using multiple professional formulas. Get your healthy weight range based on height, gender, and frame size.
Calculate Ideal Weight
Enter your current weight to get personalized recommendations
Frame Size Guide
- • Small: Slender bone structure, narrow wrists/ankles
- • Medium: Average bone structure and proportions
- • Large: Broad shoulders, thick wrists/ankles
Enter Your Details
Fill in your height and gender to calculate your ideal weight using multiple professional formulas.
Understanding Ideal Weight Formulas
Devine Formula
Most widely used in medical settings for drug dosing calculations. Developed in 1974 and remains the standard for clinical applications.
Robinson Formula
An updated version of the Devine formula with slightly different coefficients, providing more conservative weight estimates.
Miller Formula
Based on NHANES (National Health and Nutrition Examination Survey) data, reflecting modern population demographics.
Hamwi Formula
Originally developed for diabetic patients, this formula provides estimates that are often used in clinical nutrition assessments.
Important Considerations
- • These formulas provide estimates and may not account for individual body composition
- • Athletes with high muscle mass may fall outside "ideal" ranges
- • Age, ethnicity, and medical conditions can affect ideal weight
- • Consult healthcare providers for personalized weight management advice
About Ideal Weight Calculator
Professional ideal weight calculator using 4 proven medical formulas. Calculate your ideal body weight based on height, gender, age, and frame size for optimal health.
Common Use Cases
Determine if your current weight falls within the ideal range for optimal health
Set realistic weight loss targets based on scientifically-calculated ideal weight ranges
Support medical assessments and treatment planning with standardized weight calculations
Establish baseline measurements for fitness and bodybuilding programs
Guide meal planning and caloric intake recommendations for clients
Meet health insurance requirements and wellness program standards
Optimize athlete weight categories and performance goals
Provide standardized weight measurements for medical studies and research
Examples & Demonstrations
6'0" male, medium frame: Devine 178 lbs, Robinson 174 lbs, Miller 172 lbs, Hamwi 180 lbs
Input:
Male Example
Output:
6'0" male, medium frame: Devine 178 lbs, Robinson 174 lbs, Miller 172 lbs, Hamwi 180 lbs
5'6" female, medium frame: Devine 142 lbs, Robinson 140 lbs, Miller 137 lbs, Hamwi 145 lbs
Input:
Female Example
Output:
5'6" female, medium frame: Devine 142 lbs, Robinson 140 lbs, Miller 137 lbs, Hamwi 145 lbs
Subtract 10% from calculated ideal weight for small body frame individuals
Input:
Small Frame Adjustment
Output:
Subtract 10% from calculated ideal weight for small body frame individuals
Add 10% to calculated ideal weight for large body frame individuals
Input:
Large Frame Adjustment
Output:
Add 10% to calculated ideal weight for large body frame individuals
Tips & Best Practices
Compare results from all four formulas as ideal weight varies by calculation method
Small, medium, and large frame sizes affect ideal weight ranges significantly
Ideal weight ranges may change with age due to metabolism and muscle mass changes
Athletes and muscular individuals may weigh more than calculated ideal weight
Discuss results with doctors for personalized health recommendations
Use as one tool among many for overall health assessment and goal setting
Related Tools
Frequently Asked Questions
Which ideal weight formula is most accurate?
Each formula has strengths: Devine is most widely used, Robinson accounts for height differences better, Miller is newer and refined, Hamwi was designed for diabetics. Our calculator shows all four for comparison.
How do I determine my body frame size?
Measure your wrist circumference. For men: <6.5" = small, 6.5-7.5" = medium, >7.5" = large. For women: <6" = small, 6-6.25" = medium, >6.25" = large. Frame size affects ideal weight by ±10%.
Is ideal weight the same as healthy weight?
Ideal weight provides a baseline, but healthy weight ranges are broader. BMI 18.5-24.9 is considered healthy. Muscle mass, bone density, and overall fitness matter more than exact weight numbers.
Why do the formulas give different results?
Each formula uses different coefficients and was developed for different populations. Devine (1974) is most common, Robinson (1983) refined it, Miller (1983) adjusted further, Hamwi (1964) was for diabetics.
Should I use ideal weight for weight loss goals?
Use ideal weight as a general target, but focus on gradual, sustainable weight loss of 1-2 pounds per week. Consult healthcare providers for personalized weight loss recommendations.
Do these formulas work for all ages?
These formulas are designed for adults. Children and teens should use age-specific growth charts. Elderly individuals may have different healthy weight ranges due to muscle mass changes.
Why Choose Ideal Weight Calculator?
Our ideal weight calculator stands out from other online tools with its precision, speed, and user-friendly interface. Built by engineers for professionals, students, and everyday users, it provides accurate results instantly without requiring any software installation or registration.
With robust error handling, multiple format support, and responsive design, this tool works seamlessly across all devices and browsers. Trust ConvertLarge for all your conversion and calculation needs.