Ideal Weight Calculator
Calculate your ideal body weight using multiple formulas including Robinson, Miller, Devine, and Hamwi. Get a healthy weight range based on your height, gender, and frame size.
Formula:IBW = 50 + 2.3 × (height in. - 60)
Ideal Weight Range
Ideal Weight
159 lbs
Average of all formulas
Healthy Range
129-174
lbs
Robinson Formula157 lbs
Miller Formula155 lbs
Devine Formula161 lbs
Hamwi Formula165 lbs
Your Information
5'10"
Measure wrist: Small (<6"), Medium (6-7"), Large (>7")
Formula Comparison
Detailed Results
Robinson Formula (1983)
157 lbs
Updated Devine formula, widely used
Miller Formula (1983)
155 lbs
Based on metropolitan life tables
Devine Formula (1974)
161 lbs
Original IBW formula, used in medicine
Hamwi Formula (1964)
165 lbs
One of the earliest IBW formulas
Healthy BMI Range
Based on BMI 18.5 - 24.9129 lbs - 174 lbs
Min: 129 lbsMax: 174 lbs
Height-Weight Reference (Men)
| Height | Small Frame | Medium Frame | Large Frame |
|---|---|---|---|
| 5'4" | 119 lbs | 132 lbs | 145 lbs |
| 5'6" | 127 lbs | 141 lbs | 155 lbs |
| 5'8" | 135 lbs | 150 lbs | 165 lbs |
| 5'10" | 144 lbs | 159 lbs | 175 lbs |
| 6'0" | 152 lbs | 169 lbs | 185 lbs |
| 6'2" | 160 lbs | 178 lbs | 196 lbs |
Explore Weight Scenarios
Explore how changes affect your results
Your Ideal Weight vs Population
Compared to the general population
Your Ideal Weight
159.4 lbs
Percentile
32th
Below average - looking good!
Distribution
You
10th
135.0
25th
155.0
Median
170.0
75th
185.0
90th
200.0
Your Ranking
Top 32%
68% are higher
Achieving Your Ideal Weight
Based on your results
0/5 completed
⚕️ MedicalImportant
Understanding Your Goal
Your ideal weight range is 129 lbs to 174 lbs. This is a target range, not a single number. Focus on how you feel, not just the scale.
⚕️ MedicalRecommended
Formula Variation
The 45 lbs spread between formulas is normal. Use the average (159 lbs) as a general target.
🏃 ExerciseRecommended
Beyond the Scale
Ideal weight formulas don't account for muscle mass. If you strength train, focus on body composition rather than just weight.
Ideal Weight Range
Ideal Weight
159 lbs
Average of all formulas
Healthy Range
129-174
lbs
Robinson Formula157 lbs
Miller Formula155 lbs
Devine Formula161 lbs
Hamwi Formula165 lbs
Frequently Asked Questions
Ideal body weight (IBW) is an estimated weight that may be associated with optimal health based on your height and gender. Multiple formulas exist because "ideal" varies based on frame size, muscle mass, and individual factors.
No single formula is "best" for everyone. The Devine formula is commonly used in medicine. Robinson and Miller formulas may be more accurate for some people. Using the average of multiple formulas often provides a better estimate.
Larger bone structures can healthily carry more weight. Measure your wrist circumference to estimate frame size: small (<6" men, <5.5" women), medium (6-7" men, 5.5-6.25" women), large (>7" men, >6.25" women).
BMI-based ranges (18.5-24.9) provide a general guideline but don't account for muscle mass. Athletes may be above the range while healthy. Use BMI alongside other measures like body fat percentage.
Each formula was developed from different population studies and uses different mathematical approaches. This variation reflects the reality that "ideal" weight varies by individual. Consider the range rather than any single number.
How this works
Shows results from the four common formulas: Robinson, Miller, Devine, and Hamwi. Healthcare contexts usually use Devine; fitness contexts sometimes prefer Miller. All are regressions from historical data, not absolute truth.
What this tool can’t do
- "Ideal weight" is a clinical shorthand, not an aspirational number. Athletic, pregnant, and older adults have different targets.
When to consult a professional
Talk to a licensed healthcare provider before using the output of this tool to make a medical decision, especially if you have an underlying condition, are pregnant, or are on medication that affects metabolism or fluid balance.
Sources
- [1]Centers for Disease Control and Prevention (CDC)Official sourcecdc.govAccessed Apr 21, 2026
- [2]National Institutes of Health (NIH)Official sourcenih.govAccessed Apr 21, 2026
Joseph OrdunaFounder & Software Engineer
Full-stack software engineer specializing in embedded systems, web architecture, and AI/ML. Founder of Practical Web Tools. Built the gesture-controlled drone IP acquired by KD Interactive (Aura Drone, sold on Amazon).
Ideal Weight Range
Ideal Weight
159 lbs
Average of all formulas
Healthy Range
129-174
lbs
Robinson Formula157 lbs
Miller Formula155 lbs
Devine Formula161 lbs
Hamwi Formula165 lbs