Calculate Your Ideal Weight
Enter your height to see your ideal weight range
Understanding Ideal Weight
⚠️ Important Limitations
- These formulas provide estimates, not exact targets
- They don't account for muscle mass, bone density, or body composition
- Athletes and muscular individuals may weigh more than "ideal"
- Your doctor can give personalized guidance
📊 What Affects Ideal Weight?
- Height — Taller people have higher ideal weights
- Age — Body composition changes over time
- Muscle mass — Muscle weighs more than fat
- Frame size — Bone structure varies
- Activity level — Athletes may be heavier
🎯 Better Health Metrics
- BMI — Body Mass Index (18.5-24.9 is normal)
- Waist circumference — Indicates abdominal fat
- Body fat % — More accurate than weight alone
- Waist-to-hip ratio — Health risk indicator
📐 The Formulas Explained
- Devine (1974) — 50 + 2.3kg per inch over 5ft (male)
- Robinson (1983) — 52 + 1.9kg per inch over 5ft (male)
- Miller (1983) — 56.2 + 1.41kg per inch over 5ft (male)
- Hamwi (1964) — 48 + 2.7kg per inch over 5ft (male)
Frequently Asked Questions
Is my ideal weight a single number?
No! Healthy weight is a range, not a single number. Different formulas give different results because bodies vary. Aim for the range, not an exact target.
Why do the formulas give different results?
Each formula was developed for different purposes and populations. The Devine formula was originally for drug dosing, while others were developed for nutritional assessment. The average of all four gives a reasonable estimate.
What if I'm muscular or athletic?
These formulas don't account for muscle mass. If you're athletic with significant muscle, your healthy weight may be higher than calculated. Body fat percentage is a better metric for you.
Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are estimates and should not replace professional medical advice.
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Ideal Weight Calculator FAQ
What is Ideal Weight Calculator?
Ideal Weight Calculator is a free health tool that helps you Estimate ideal weight from height.
How do I use Ideal Weight Calculator?
Enter your input values, review the calculated output, and adjust inputs until you reach the result you need. The result updates in your browser.
Is Ideal Weight Calculator private?
Yes. Calculations run locally in your browser. Inputs are not uploaded to a server by default, and refreshing the page clears session data.
Does Ideal Weight Calculator require an account or installation?
No. You can use this tool directly in your browser without sign-up or software installation.
How accurate are results from Ideal Weight Calculator?
This tool applies standard formulas or deterministic processing logic for estimates. For medical, legal, tax, or investment decisions, verify with a qualified professional.
Can I save or share outputs from Ideal Weight Calculator?
You can bookmark this page and copy outputs manually. Results are not persisted in your account and are typically not embedded in the URL.