Feet to Weight Calculator
Estimate a healthy weight range and compare common ideal body weight formulas using your height in feet and inches.
Your results will appear here
Enter your height in feet and inches, choose a formula preference, and click Calculate Weight Estimate.
Expert Guide to Using a Feet to Weight Calculator
A feet to weight calculator is a height-based tool that estimates an appropriate or healthy body weight using your height measured in feet and inches. Many people search for this type of calculator when they want a simple answer to a practical question: “Based on my height, what weight should I be?” While the question sounds straightforward, the most accurate answer depends on the method used, your body composition, age, sex, frame size, activity level, and health history.
In practice, most height-to-weight calculators rely on one of two approaches. The first is a healthy Body Mass Index, or BMI, range. The second is an ideal body weight formula such as Devine, Hamwi, Robinson, or Miller. Both approaches use height as the main starting point, but they serve slightly different purposes. BMI is widely used as a population-level screening tool. Ideal body weight formulas were developed in clinical and nutrition settings and are often used for medication dosing, nutrition planning, or quick reference in healthcare.
This calculator gives you both perspectives. That matters because no single number tells the whole story. A person who is very muscular may weigh more than a standard chart suggests and still be metabolically healthy. Another person may fall within a “normal” range on a chart but have low muscle mass, poor fitness, or unhealthy waist measurements. That is why a feet to weight calculator is best used as a starting point, not the final verdict.
How the calculator works
First, your height is converted into total inches. For example, 5 feet 8 inches becomes 68 inches. From there, the calculator uses standard formulas to estimate weight. If you choose the BMI method, it calculates the lower and upper ends of the healthy BMI range, commonly 18.5 to 24.9, then converts those values into weight for your exact height. If you choose one of the ideal body weight formulas, the calculator estimates a target value based on the formula and can apply a small, medium, or large frame adjustment for a more realistic range.
Why height matters in weight estimation
Height strongly influences healthy weight because taller bodies generally need more total mass to support the skeleton, organs, and muscle tissue. However, height alone cannot capture differences in bone structure, training status, or body fat distribution. Two people who are both 5 feet 10 inches tall can look and perform very differently at 155 pounds versus 185 pounds. One may be sedentary and one may be highly trained. One may have a narrow frame and one may have a broad frame. This is exactly why height-based calculators should be paired with other indicators such as waist circumference, blood pressure, fitness level, and lab markers when possible.
Understanding the healthy BMI range
BMI is calculated as weight relative to height. It is not a direct measure of body fat, but it remains one of the most common public health screening tools because it is easy to calculate and useful across large populations. According to the CDC and NIH, BMI categories for adults are commonly interpreted as follows:
| BMI Category | BMI Range | General Interpretation |
|---|---|---|
| Underweight | Below 18.5 | May indicate insufficient weight for height, though context matters. |
| Healthy weight | 18.5 to 24.9 | Common screening range associated with lower average risk in broad populations. |
| Overweight | 25.0 to 29.9 | Higher than the standard healthy screening range. |
| Obesity | 30.0 and above | Associated with elevated health risk in many populations. |
These thresholds are useful, but they should not be overinterpreted. For example, BMI may overestimate body fatness in people with high muscle mass and underestimate risk in people who carry excess abdominal fat at a lower body weight. So if your result is near a category boundary, it is especially helpful to look at waist circumference and lifestyle factors too.
Common ideal body weight formulas
Ideal body weight formulas are another popular way to estimate a suitable weight from height. They are not identical because they were developed from different data sets and assumptions. In general, they provide a practical reference point rather than a perfect target.
- Devine: Frequently cited in healthcare and pharmacy references.
- Hamwi: A classic formula often used in nutrition education.
- Robinson: Tends to produce slightly lower estimates than some older formulas.
- Miller: Another widely used ideal body weight equation.
Because these formulas can differ by several pounds, this calculator shows multiple methods side by side. That helps you avoid treating one formula as an absolute rule. A cluster of estimates is often more useful than a single number.
Example healthy weight ranges by height
The table below shows sample healthy weight ranges based on the standard adult BMI range of 18.5 to 24.9. These values are rounded examples and illustrate how strongly height influences weight expectations.
| Height | Healthy Weight Range (lb) | Healthy Weight Range (kg) |
|---|---|---|
| 5 ft 0 in | 95 to 127 lb | 43.1 to 57.6 kg |
| 5 ft 4 in | 108 to 145 lb | 49.0 to 65.8 kg |
| 5 ft 8 in | 122 to 164 lb | 55.3 to 74.4 kg |
| 6 ft 0 in | 136 to 183 lb | 61.7 to 83.0 kg |
These ranges are helpful because they are individualized by height. A fixed target weight without reference to height is much less informative. Still, a healthy range is often more realistic than a single “perfect weight” because bodies naturally vary.
Real population statistics to keep in mind
Height-to-weight calculators are reference tools, but population data shows how average adult measurements compare to idealized formulas. According to national survey data published by the CDC, recent averages for U.S. adults have been approximately as follows:
| Group | Average Height | Average Weight |
|---|---|---|
| Adult men in the U.S. | 69.0 in (5 ft 9 in) | 199.8 lb |
| Adult women in the U.S. | 63.5 in (5 ft 3.5 in) | 170.8 lb |
These are averages, not goals. In fact, national averages can sit above the standard healthy BMI range, which is one reason a feet to weight calculator can be useful for perspective. It helps separate what is common from what may be healthiest for long-term risk reduction.
When the calculator is most useful
- Goal setting: If you are planning weight loss, it can help you choose a realistic target range instead of one arbitrary number.
- Nutrition planning: Dietitians and health coaches often use ideal body weight estimates as a rough planning tool.
- Fitness benchmarking: People beginning exercise programs often want a quick, height-based reference point.
- Clinical context: Some medication and nutrition calculations reference ideal body weight formulas.
What the calculator cannot tell you
A feet to weight calculator does not measure body fat percentage, muscle mass, visceral fat, bone density, hydration status, or metabolic health. It also cannot account for ethnicity-specific risk patterns, pregnancy, edema, major illness, or advanced athletic development. If you want a deeper assessment, pair this tool with:
- Waist circumference
- Body fat testing if available
- Resting blood pressure
- Lipid panel and blood glucose markers
- Strength and cardio fitness markers
- Guidance from a physician or registered dietitian
How to use your result wisely
If your calculated healthy range is below your current weight, avoid crash dieting. A safer approach is to focus on sustainable habits such as higher protein intake, more daily walking, resistance training, improved sleep, and a modest calorie deficit if weight loss is appropriate. If your result is above your current weight and you are feeling fatigued, weak, or under-muscled, that may be a signal to work on strength and nutrition rather than simply trying to remain light.
In most cases, progress should be measured with more than the scale alone. Take note of waist size, energy, workout capacity, sleep quality, and how consistently you can follow a healthy routine. A mathematically “ideal” weight is less meaningful if the path to reach it is unhealthy or impossible to maintain.
Why formulas can disagree
You may notice that the Devine, Hamwi, Robinson, and Miller estimates do not match exactly. That is normal. These formulas were developed at different times and from different assumptions. The important insight is not the exact difference between two formulas, but the overall zone where they cluster. If several methods place you in a similar band, that band is often a practical target region for discussion with a healthcare professional.
Best practices for a realistic target weight
- Use a range, not one rigid number.
- Favor trends over daily scale fluctuations.
- Consider strength, muscle mass, and waist size.
- Reassess after major training or lifestyle changes.
- Use medical guidance if you have chronic disease, are pregnant, or are under 18.
Bottom line
A feet to weight calculator is a practical tool for translating height into a meaningful weight estimate. It is most useful when it gives you a healthy range and lets you compare several established formulas rather than pushing a single number. Use it to understand where you stand, set realistic goals, and start better conversations about nutrition, fitness, and health. Then go one step further by looking at body composition, waist measurement, fitness, and medical markers for a fuller picture.
If you want the most credible interpretation of your result, review public health guidance from the CDC, the NIH and NHLBI, and the Harvard T.H. Chan School of Public Health. Those sources explain how to use height, weight, BMI, and risk factors together rather than in isolation.