BMI Chart for Adults: Normal, Underweight, Overweight, and Obese Ranges (By Height)
A BMI chart helps you find out which weight category you fall into based on your height and weight. It is one of the fastest ways to check if your weight is in a healthy range, without doing any math yourself. This guide gives you the full adult BMI chart in both metric and imperial units, explains what each category means, and shows you exactly how to read it correctly.
If you want an instant, personalized result instead of reading a chart, you can use our BMI calculator to get your exact number in seconds.
What Is a BMI Chart?
A BMI chart is a table that lists Body Mass Index (BMI) values next to a weight category, usually organized by height. Instead of calculating your BMI with a formula, you can simply find your height and weight on the chart and see which category you fall into: underweight, normal weight, overweight, or obese.
BMI itself is calculated using your height and weight. If you want to understand exactly how the formula works and where it came from, our article on what BMI is and how it is calculated breaks this down step by step. This chart is simply a faster, visual way to get the same result.
How to Read a BMI Chart
Reading a BMI chart is simple once you know what to look for:
- Find your height in the left column of the chart (in cm or feet/inches, depending on the table).
- Move across the row until you find the weight closest to yours.
- Check the category that weight falls under: underweight, normal, overweight, or obese.
Each category is tied to a BMI number range. For example, a BMI between 18.5 and 24.9 is considered “normal weight” for most adults. The chart does the math for you, so you don’t need to calculate BMI by hand unless you want the exact decimal figure.
Adult BMI Categories
These are the standard adult BMI categories used by health organizations worldwide:
| BMI Range | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25.0 – 29.9 | Overweight |
| 30.0 – 34.9 | Obesity (Class I) |
| 35.0 – 39.9 | Obesity (Class II) |
| 40.0 and above | Obesity (Class III / Severe) |
These ranges apply to adults aged 20 and above. They are not used the same way for children and teenagers, whose healthy BMI range changes with age and is measured using percentiles instead of fixed numbers.
BMI Chart by Height (Metric)
The table below shows approximate weight ranges for each BMI category, based on height in centimeters. Weights are rounded to the nearest whole kilogram.
| Height (cm) | Underweight (below) | Normal weight | Overweight | Obese (30+) |
|---|---|---|---|---|
| 150 | Below 42 kg | 42 – 56 kg | 56 – 68 kg | 68 kg and above |
| 155 | Below 44 kg | 44 – 60 kg | 60 – 72 kg | 72 kg and above |
| 160 | Below 47 kg | 47 – 64 kg | 64 – 77 kg | 77 kg and above |
| 165 | Below 50 kg | 50 – 68 kg | 68 – 82 kg | 82 kg and above |
| 170 | Below 54 kg | 54 – 72 kg | 72 – 87 kg | 87 kg and above |
| 175 | Below 57 kg | 57 – 77 kg | 77 – 92 kg | 92 kg and above |
| 180 | Below 60 kg | 60 – 81 kg | 81 – 97 kg | 97 kg and above |
| 185 | Below 63 kg | 63 – 86 kg | 86 – 103 kg | 103 kg and above |
| 190 | Below 67 kg | 67 – 90 kg | 90 – 108 kg | 108 kg and above |
BMI Chart by Height (Imperial)
Here is the same chart using height in feet/inches and weight in pounds.
| Height | Underweight (below) | Normal weight | Overweight | Obese (30+) |
|---|---|---|---|---|
| 4’10” (58″) | Below 89 lbs | 89 – 119 lbs | 119 – 143 lbs | 143 lbs and above |
| 5’0″ (60″) | Below 95 lbs | 95 – 128 lbs | 128 – 153 lbs | 153 lbs and above |
| 5’2″ (62″) | Below 101 lbs | 101 – 137 lbs | 137 – 164 lbs | 164 lbs and above |
| 5’4″ (64″) | Below 108 lbs | 108 – 146 lbs | 146 – 175 lbs | 175 lbs and above |
| 5’6″ (66″) | Below 115 lbs | 115 – 155 lbs | 155 – 186 lbs | 186 lbs and above |
| 5’8″ (68″) | Below 122 lbs | 122 – 165 lbs | 165 – 197 lbs | 197 lbs and above |
| 5’10” (70″) | Below 129 lbs | 129 – 174 lbs | 174 – 209 lbs | 209 lbs and above |
| 6’0″ (72″) | Below 136 lbs | 136 – 184 lbs | 184 – 221 lbs | 221 lbs and above |
| 6’2″ (74″) | Below 144 lbs | 144 – 195 lbs | 195 – 234 lbs | 234 lbs and above |
These numbers are reference points, not strict cut-offs. Muscle mass, bone density, and age all affect how accurately BMI reflects your actual health, which we cover in more detail later in this article.
WHO BMI Classification
The World Health Organization (WHO) created the standard BMI classification system used by most countries. It splits BMI into six main categories, as shown in the table above. However, the WHO also acknowledges that these thresholds don’t work equally well for every population.
For example, research shows that people of South Asian descent tend to develop health risks like diabetes and heart disease at lower BMI levels than the standard Western thresholds suggest. Because of this, several health bodies recommend lower overweight and obesity cut-offs specifically for South Asian populations. This is an important nuance if you’re checking your BMI as an Indian reader, and it’s a topic worth understanding on its own rather than assuming the standard chart above applies exactly the same way to everyone.
Why BMI Charts Matter
BMI charts are useful because they give you a quick, standardized starting point for understanding your weight in relation to your height. They’re used by doctors, insurance companies, and researchers as a simple screening tool, not because BMI is a perfect measurement, but because it’s fast, free, and doesn’t need any special equipment.
BMI is also different from metabolic measurements like BMR, which measures how many calories your body burns at rest rather than your weight category. Knowing both numbers gives you a fuller picture: BMI tells you where your weight sits, while BMR tells you how much energy your body needs to maintain it.
Limitations of BMI Charts
BMI charts have real limitations, and it’s important to understand them so you don’t over-rely on a single number:
- It doesn’t measure body fat directly. BMI only looks at height and weight, not what that weight is made of.
- It doesn’t account for muscle mass. A muscular, athletic person can show as “overweight” on a BMI chart despite having low body fat.
- It doesn’t adjust for age. Muscle naturally decreases and fat tends to increase with age, even if weight stays the same. Metabolic rate also changes with age, similar to how normal BMR values shift across different age groups.
- It doesn’t separate fat distribution. Two people with the same BMI can carry weight very differently, and where fat is stored matters for health risk.
- It uses one formula for all populations. As mentioned above, the same BMI number can mean different health risks for different ethnic groups.
This is exactly why the question is BMI accurate for everyone comes up so often, and why it’s worth reading about the specific limitations of BMI in more depth before treating your result as a final verdict on your health.
Common Mistakes People Make With BMI Charts
- Treating BMI as a diagnosis. BMI is a screening tool, not a medical diagnosis. A high or low BMI is a signal to look closer, not a confirmed health condition.
- Using adult charts for children. Children and teens need age- and sex-specific percentile charts, not the fixed adult ranges shown above.
- Ignoring muscle mass. Athletes and bodybuilders often fall into “overweight” or “obese” categories despite having low body fat.
- Comparing BMI to body fat percentage as if they’re the same thing. They measure different things, and understanding BMI vs body fat percentage helps explain why two people with identical BMI can have very different body compositions.
- Assuming one BMI number applies at every age. A “normal” BMI at 25 doesn’t carry the same health meaning at 65, since body composition changes over time.
Practical Examples
Example 1: A person is 165 cm tall and weighs 60 kg.
BMI = 60 ÷ (1.65 × 1.65) = 60 ÷ 2.72 = 22.0
This falls in the normal weight range (18.5–24.9).
Example 2: A person is 5’6″ (66 inches) tall and weighs 190 lbs.
BMI = (190 × 703) ÷ (66 × 66) = 133,570 ÷ 4,356 = 30.7
This falls in the Obesity Class I range (30.0–34.9).
Example 3: A person is 180 cm tall, weighs 95 kg, and trains with weights five times a week.
BMI = 95 ÷ (1.80 × 1.80) = 95 ÷ 3.24 = 29.3
This falls just under the obesity threshold, in the overweight range. But because a large share of this person’s weight is muscle, their actual health risk is likely much lower than the chart suggests. This is a clear real-world case of when BMI can be misleading.
When BMI May Be Misleading
BMI can give a distorted picture in several common situations:
- Athletes and bodybuilders, whose muscle mass pushes their BMI higher without extra body fat.
- Older adults, who may have a “normal” BMI but higher body fat and lower muscle mass than the number suggests.
- Pregnant women, whose weight changes are expected and healthy, but don’t fit standard BMI categories.
- People who are very short or very tall, since the BMI formula doesn’t scale perfectly at height extremes.
In these cases, other measurements matter more. Comparing your BMI result against your ideal weight range or looking at direct body fat measurements gives a more complete picture than the chart alone. If you’re actively working on your weight, understanding how a calorie deficit affects weight loss is often more useful day-to-day than watching your BMI category shift.
Frequently Asked Questions
1. What is a normal BMI for adults?
A BMI between 18.5 and 24.9 is considered normal weight for most adults.
2. What BMI is considered overweight?
A BMI between 25.0 and 29.9 is classified as overweight.
3. What BMI is considered obese?
A BMI of 30.0 or higher is classified as obese, split further into Class I, II, and III based on severity.
4. What BMI is considered underweight?
A BMI below 18.5 is classified as underweight.
5. Is the BMI chart the same for men and women?
Yes, the standard adult BMI categories are the same for men and women, though body composition typically differs between the sexes at the same BMI.
6. Does the BMI chart apply to children?
No. Children and teens use age- and sex-specific BMI percentile charts instead of the fixed adult ranges.
7. Can muscular people have a high BMI without being unhealthy?
Yes. Muscle weighs more than fat, so muscular individuals often score “overweight” or “obese” on a BMI chart despite low body fat.</p
8. Is BMI accurate for everyone?
Not perfectly. BMI is a useful screening tool, but it doesn’t measure body fat directly and doesn’t account for muscle mass, age, or ethnicity-based risk differences.
9. What is the BMI formula?
BMI = weight (kg) ÷ height (m)². In imperial units, BMI = (weight in lbs × 703) ÷ height (inches)².
10. Why do some countries use lower BMI cut-offs?
Populations such as South Asians tend to face higher health risks at lower BMI levels, so some health guidelines recommend lower overweight and obesity thresholds for these groups.
11. What’s the difference between BMI and BMR?
BMI measures your weight category based on height and weight. BMR measures how many calories your body burns at rest. They serve different purposes and are calculated differently.
12. How often should I check my BMI?
There’s no fixed rule, but checking every few months, or after a significant weight change, is enough for most people to track general trends.
13. Can BMI predict disease risk?
BMI is linked to risk trends for conditions like diabetes and heart disease at a population level, but it’s not a personal diagnostic tool for any individual.
14. What should I do if my BMI shows overweight or obese?
Use it as a starting point to look closer at your overall health, not as a final judgment. Speaking with a doctor and looking at additional measures like waist circumference or body fat percentage gives a fuller picture.
15. Is a BMI chart better than a BMI calculator?
A chart gives you a quick visual estimate, while a calculator gives you an exact number. For precision, a calculator is more accurate since it’s not limited to rounded weight ranges.
16. Does BMI change with age even if weight stays the same?
The BMI number itself won’t change if your height and weight don’t change, but what that number means for your health can shift with age, since body composition changes over time.
Summary
A BMI chart gives you a fast way to see which weight category you fall into based on your height and weight, using the standard ranges: underweight (below 18.5), normal weight (18.5–24.9), overweight (25.0–29.9), and obese (30.0 and above). It’s a useful screening tool, but not a perfect one. Muscle mass, age, pregnancy, and ethnic background can all affect how well BMI reflects actual health.
For the most accurate result based on your exact height and weight, use our BMI calculator to get your precise BMI number instantly.