Body Weight Calculator According to Height
Estimate a healthy or ideal body weight range using your height, sex, frame size, and preferred formula. This calculator compares several established methods and also shows the BMI-based healthy weight range for your height.
Your results will appear here
Enter your details and click Calculate Weight to see your ideal body weight estimate, healthy BMI range, and formula comparison chart.
How a body weight calculator according to height works
A body weight calculator according to height estimates a healthy or ideal body weight using your height as the primary measurement. In many cases, sex is also used because several clinical formulas were originally designed from observed differences in body composition patterns between men and women. Unlike a scale reading alone, a height-based weight estimate gives you context. It helps answer an important question: what body weight may be reasonable, healthy, or clinically useful for someone of my height?
There is no single perfect number that applies to everyone. Bone structure, muscle mass, ethnicity, age-related changes, and training background all influence what weight feels best and functions best in real life. That is why good calculators often provide more than one formula and also compare those estimates with the healthy BMI range. The result is not a diagnosis. It is a planning tool that can support nutrition goals, wellness conversations, medication dosing discussions, and progress tracking.
This calculator highlights common ideal body weight formulas such as Devine, Hamwi, Miller, and Robinson, then compares them with the standard healthy BMI range of 18.5 to 24.9. In everyday use, the most helpful approach is to treat the output as a reasonable range rather than a rigid target. Someone who lifts weights regularly may sit above a formula-based ideal weight while still being metabolically healthy. On the other hand, a person with lower muscle mass may need a different interpretation even if the scale lands in a standard range.
Why height matters in weight estimation
Height is one of the most practical measurements in health screening because it does not fluctuate daily the way body weight can. A taller person generally needs more bone, organ, and lean tissue mass than a shorter person. That is why height is central to BMI, ideal body weight equations, pediatric growth charts, and many clinical assessments. When clinicians need a quick estimate, height-based methods offer a fast and standardized starting point.
Still, the phrase “ideal weight” should be used carefully. In modern health practice, many professionals prefer terms like healthy weight range, target weight estimate, or reference weight. Those phrases better reflect that health is influenced by more than a single scale number. Blood pressure, blood sugar, sleep quality, activity level, strength, mobility, and waist circumference often matter as much as, or more than, body weight by itself.
Main methods used in height-based body weight calculators
- Devine formula: Frequently used in clinical settings, especially as a reference for medication dosing and ideal body weight estimation.
- Hamwi formula: A classic method that many people recognize; often adjusted for small or large frame size.
- Miller formula: Another established equation that may produce slightly lower or smoother estimates in some height ranges.
- Robinson formula: Popular because it often lands near a practical middle ground between other formulas.
- BMI healthy range: Not an ideal body weight equation, but a widely used public health standard that converts your height into a broad healthy weight interval.
Formulas behind the calculator
Most ideal body weight formulas are based on height above 5 feet, which is 60 inches. Since this calculator accepts centimeters, it converts your height into inches before running the formulas. Here is the basic logic behind the methods:
- Devine: Men: 50 kg + 2.3 kg for each inch over 5 feet. Women: 45.5 kg + 2.3 kg for each inch over 5 feet.
- Hamwi: Men: 48.0 kg + 2.7 kg per inch over 5 feet. Women: 45.5 kg + 2.2 kg per inch over 5 feet. Small frame may reduce the estimate by about 10%, and large frame may increase it by about 10%.
- Miller: Men: 56.2 kg + 1.41 kg per inch over 5 feet. Women: 53.1 kg + 1.36 kg per inch over 5 feet.
- Robinson: Men: 52 kg + 1.9 kg per inch over 5 feet. Women: 49 kg + 1.7 kg per inch over 5 feet.
- BMI healthy range: Weight in kilograms = BMI × height in meters squared, using BMI values from 18.5 to 24.9.
These formulas can produce different results because they were developed from different patient groups and assumptions. That is normal. If one formula says 68 kg and another says 72 kg, that does not mean one is correct and the other is wrong. It means your practical target could reasonably sit somewhere in that broader zone, especially if other health indicators look good.
Healthy BMI range according to height
BMI remains one of the most common ways to compare body weight with height. It is simple, inexpensive, and useful in large populations. According to major public health standards, a BMI from 18.5 to 24.9 is generally considered the healthy range for most adults. For a given height, this creates a lower and upper healthy body weight boundary. That range is broad on purpose because people can be healthy at different points within it.
| Height | Healthy BMI Weight Range | Approximate Midpoint | Practical Use |
|---|---|---|---|
| 160 cm | 47.4 kg to 63.7 kg | 55.6 kg | Useful as a broad health screening range |
| 165 cm | 50.4 kg to 67.8 kg | 59.1 kg | Common reference point in preventive care |
| 170 cm | 53.5 kg to 72.0 kg | 62.8 kg | Often overlaps with formula-based ideal weight estimates |
| 175 cm | 56.7 kg to 76.3 kg | 66.5 kg | Helpful for setting a general target range |
| 180 cm | 59.9 kg to 80.7 kg | 70.3 kg | Useful baseline before adding body composition data |
| 185 cm | 63.3 kg to 85.2 kg | 74.3 kg | Shows how taller adults naturally carry more mass |
The values above come directly from the standard BMI equation. They are not personalized by muscle mass, frame, or body fat distribution. That is why many experts recommend using BMI as one layer of information, not the only layer. A person with a high amount of lean mass can appear “overweight” by BMI even while maintaining excellent cardiometabolic health markers.
Comparing ideal body weight formulas
One of the best ways to understand your result is to compare formulas side by side. The table below shows sample estimates for a height of 175 cm, which is about 68.9 inches. This means the formulas are using about 8.9 inches over 5 feet.
| Formula | Male at 175 cm | Female at 175 cm | What it tells you |
|---|---|---|---|
| Devine | 70.5 kg | 66.0 kg | Common clinical reference and widely recognized |
| Hamwi | 72.0 kg | 65.1 kg | Can be adjusted for small or large frame size |
| Miller | 68.8 kg | 65.2 kg | Often slightly more conservative for some users |
| Robinson | 68.9 kg | 64.1 kg | Often sits near the middle of practical target values |
| BMI healthy range | 56.7 kg to 76.3 kg | Broad population-level health screening range | |
Notice that the formula results cluster fairly closely, while the BMI healthy range is much wider. This is why many people use a two-step interpretation:
- Use an ideal body weight formula to identify a focused target.
- Use the healthy BMI range to understand the broader acceptable interval.
When a height-based weight estimate is useful
A body weight calculator according to height can be particularly useful in several situations. First, it helps adults set realistic goals when they want to lose or gain weight gradually. Instead of chasing an arbitrary number from the past, you can use a structured estimate tied to your current height. Second, it offers context for people who are rebuilding health after illness, inactivity, pregnancy, or major lifestyle changes. Third, it can support conversations with clinicians, dietitians, and trainers by giving everyone a common starting point.
It is also useful for comparing your current weight against a health-oriented reference. For example, if your current weight is well above the healthy BMI range, that may indicate that reducing weight could lower strain on joints, improve blood pressure, or help with sleep apnea risk. If your weight is below the lower range, it may signal the need to look at nutrition, appetite, digestive health, or underlying medical issues.
Factors a simple calculator cannot fully capture
- Muscle mass: Athletes and strength-trained adults often weigh more without having excess body fat.
- Body fat distribution: Waist circumference and central fat matter for health risk.
- Age-related changes: Muscle loss over time can affect body composition even if body weight stays stable.
- Ethnicity and genetics: Health risk can appear at different BMI levels in different populations.
- Medical conditions: Fluid retention, endocrine disorders, and some medications can distort scale weight.
How to use your result intelligently
The best way to use a body weight calculator according to height is as a benchmark, not a verdict. After getting your result, compare it to your current weight and ask a few practical questions. Are you within the healthy BMI range? Are you close to one or more ideal body weight formulas? How is your energy, strength, blood pressure, and activity tolerance? Have you maintained your current weight comfortably, or are you constantly dieting to force it?
If your result suggests weight loss, the most sustainable approach is usually a moderate calorie deficit, regular activity, strength training, adequate protein, and sleep consistency. If your result suggests weight gain, focus on gradual increases in calories, resistance training, and sufficient protein intake. In both cases, a pace of steady progress is usually more effective than rapid swings on the scale.
A practical interpretation checklist
- Review the healthy BMI weight range for your height.
- Compare the four ideal body weight formulas.
- See whether your current weight falls below, within, or above those references.
- Pair your result with waist size, activity level, and basic labs if available.
- Discuss unusual results with a clinician if you have chronic disease, major muscle gain, edema, or unexplained weight change.
Authoritative public health references
For evidence-based guidance, review these trustworthy resources:
- CDC: Adult BMI Calculator and BMI categories
- National Heart, Lung, and Blood Institute: BMI information
- Harvard T.H. Chan School of Public Health: BMI overview
Bottom line
A body weight calculator according to height is a useful tool for estimating a reasonable target weight and understanding how your current body weight compares with recognized reference standards. It works best when you use it as one part of a larger health picture. Height-based formulas such as Devine, Hamwi, Miller, and Robinson can give you a focused estimate, while the healthy BMI range shows the broader interval associated with general adult health screening.
No formula can fully describe your body composition, health risks, or performance capacity. Still, these calculations provide a strong starting point. If your result is far from your current weight, treat that as an invitation to investigate rather than a reason for self-judgment. Combine the estimate with waist circumference, physical fitness, medical history, and professional guidance. That is the most reliable way to turn a simple height-based calculator into practical, personalized insight.