IBW Range
68.7 - 72.0 kg
Devine
70.5 kg
Hamwi
72.0 kg
Robinson
68.9 kg
Miller
68.7 kg
Note
Reference
Not a strict target.
Body & Fitness
Ideal Body Weight Calculator
Estimate ideal body weight using common clinical formulas (Devine and others).
By Calculator Suite Pro Editorial Team | Last updated March 18, 2026
Use this estimate as body-metric context, then compare nearby fitness tools when one number needs more perspective.
Explore the Body & Fitness group for nearby calculators, examples, and guide links.
About this calculator
Ideal body weight (IBW) is an estimate of a target weight based on height and sex using common clinical formulas. It is often used for reference in medical settings and general planning.
This calculator shows a practical IBW estimate using well-known formulas. The result is not a strict goal for everyone because body composition, frame size, and individual factors vary.
If you want to compare lean mass vs fat mass, use the Lean Body Mass or Body Fat Percentage calculators too.
How the estimate is calculated
A short explanation of how the body or training inputs are turned into an estimate.
- IBW formulas estimate a baseline weight at 5 feet, then add weight per inch above that.
- Different formulas (Devine, Robinson, Miller, Hamwi) can produce slightly different values.
- This calculator reports multiple estimates so you can see a reasonable range.
- IBW is often used for medication dosing references and general screening, not as a fitness 'perfect weight'.
Formula and interpretation limits
These are the formulas, assumptions, and screening limits used by this body or fitness calculator.
- IBW formulas estimate a baseline weight at 5 feet, then add weight per inch above that.
- Different formulas (Devine, Robinson, Miller, Hamwi) can produce slightly different values.
Where this estimate can help
Use these scenarios to decide whether the output is useful for tracking, planning, or a basic screen.
- Reference weight estimate by height
- General goal setting for weight management
- Educational use (learning IBW formulas)
- Checking how far current weight is from a reference estimate
- Comparing multiple formulas quickly
- Health/fitness planning conversations
- Quick reference for coaches and trainers
- Pairing with BMI and waist ratios for context
How to enter body metrics
- Select sex.
- Enter your height.
- Calculate to see an IBW estimate (and a small range from multiple formulas).
- Use the result as a reference, not a requirement.
- Compare with BMI or body fat estimates for better context.
Body-metric mistakes to avoid
Confusing results usually come from measurement errors, formula assumptions, or over-interpreting a single number.
- Treating IBW as the only healthy weight for everyone.
- Ignoring body composition (muscle vs fat).
- Using the estimate for children/teens (different standards).
- Entering height in the wrong unit.
- Comparing formulas and expecting identical results (each differs).
Interpretation tips
- Use IBW as a reference point, then adjust based on health, strength, and comfort.
- If you lift weights, your healthy weight can be higher than IBW due to muscle mass.
- Use BMI calculator to see category ranges, but avoid over-focusing on labels.
- Track trends and performance, not just a single target weight number.
Glossary
Quick definitions for body and fitness terms used on this page.
IBW
Ideal Body Weight: a reference weight estimate based on height and sex.
Devine formula
A widely used IBW formula based on a 5-foot baseline and per-inch increments.
Body-metric examples
Example
Input: Sex: Men, Height: 180cm
Output: IBW estimate shown in kg
Example
Input: Sex: Women, Height: 165cm
Output: IBW estimate shown in kg
Multiple formulas
Input: Same height, different formulas
Output: Small range across formulas
Body and fitness guides
Related explainers that add context around formulas, trends, and interpretation limits.
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Set calorie targets and macro split ranges for fat loss, maintenance, or muscle gain without guesswork.
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A practical guide to how BMI relates to cancer risk, why weight matters biologically, and how to use that information without treating BMI as a verdict.
FAQ
Is IBW the same as a healthy weight range?
No. IBW is a reference estimate. Healthy weight depends on many factors including composition and health markers.
Why do different formulas give different results?
They use slightly different assumptions about baseline weight and weight-per-inch increments.
Can athletes be above IBW and still be healthy?
Yes. Muscle mass can increase weight without indicating poor health.
Should I aim exactly for IBW?
Not necessarily. Use it as a reference and discuss goals with a qualified professional if needed.
Does IBW use age?
Most classic IBW formulas do not use age directly. They are height-based estimates.
Can IBW help with calorie planning?
It can provide a rough reference, but use TDEE and real progress tracking for calorie targets.
Body-metric references and update notes
Last updated: March 18, 2026
Reviewed by Calculator Suite Pro Editorial Team.
Use the output for general context; clinical or high-stakes decisions need professional confirmation.
Related body and fitness calculators
Use nearby body-metric tools together when one estimate needs more context.
BMI Calculator
Calculate BMI (Body Mass Index) and view the category range.
Body Fat Percentage Calculator
Estimate body fat percentage using measurement-based formulas (US Navy method).
BMR Calculator
Calculate Basal Metabolic Rate (BMR) using the Mifflin-St Jeor formula.
TDEE Calculator
Estimate daily calorie needs (TDEE) based on BMR and activity level.
Waist-to-Hip Ratio (WHR) Calculator
Calculate waist-to-hip ratio to assess fat distribution.
Lean Body Mass Calculator
Estimate lean body mass (LBM) using height, weight, and sex-based formulas.