BMI Calculator

BMI calculator finds your weight classification as underweight, normal weight, overweight, class 1 obese, class 2 obese, or class 3 obese.

BMI Calculator

The BMI calculator is widely used to find out if a person’s weight is appropriate for the height.

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• The Body Mass Index (BMI) calculator gives the measurement of a person’s leanness and corpulence.
• BMI is a quick way to determine a person’s health status and outcomes.
• Severe underweight and obesity pose health problems for an individual.
• Obesity is primarily the major risk factor for many diseases like hypertension, diabetes, high cholesterol levels, heart diseases, some types of cancers, and mental illnesses.

BMI Chart

Category	BMI range – kg/m2
Underweight	< 18
Normal	18- 24.9
Overweight	25 -29.9
Obese Class 1	30 – 35
Obese Class 2	35 – 40
Obese Class 3	>40

• BMI can be combined with other measurements such as bone mass and fat levels to analyze a person’s body weight.
• BMI measures only the excess body weight rather than the fat levels.
• A person may fall under the normal category in terms of weight but he might have significant amounts of excess body fat that can be measured with the help of the Body Fat Calculator.
• It is necessary to maintain a BMI in the normal range for healthy body weight.
• Middle-aged people have the probability to have more body fat than younger adults who has the same BMI.
• Higher BMI may be noticed in muscular people and trained athletes whose body consists of large muscle mass.

BMI Formula

• A person’s height and weight are the main criteria that determine the BMI of the person.
• The below equation is used to calculate the BMI in SI units (International System of Units).
• BMI = Weight (Kg) / Height²(m)
• The BMI may vary with an increase/decrease in weight.
• The BMI calculation does not suit pregnant women, small children whose height and weight vary with age, athletes, and persons who want to increase their muscle mass.
• BMI may be higher for athletes and muscle builders who are not at greater risk.
• A women’s body composition changes with pregnancy, so this rule doesn’t apply to them.
• BMI less than 18 (Underweight) is an indicator of malnutrition, eating disorders, and other health problems.
• The weak immune system, low bone density, retarded growth among children, and hormonal imbalances may be associated with low BMI ranges.

Body Mass Index Calculator

• The BMI calculator is an efficient tool to calculate fatness and leanness according to weight and height.
• BMI describes your health conditions and whether to lose or gain weight.
• BMI does not differentiate between muscle mass and fat. BMI may be higher if your weight is due to your muscle mass, which means you are not obese.
• The BMI calculator helps to manage weight either by decreasing/increasing it based on your values.

BMI Calculator for Children

The body mass index calculator varies for children and teenagers. The growth rate differs for male and female children regarding height and weight during developmental stages.

The BMI is expressed in the percentile range for children.

Category	Percentile range
Underweight	< 5
Normal	5 – 85
Overweight	85 – 95
Obese	>95

Ideal Weight Calculation

• Ideal weight calculation is the most important step for a person to be healthy.
• BMI can be used to calculate the ideal weight for a given height. The ideal weight differs from male to female.
• The calculated ideal body weight for men is 52 kg + 1.9 kg for every inch above 5 feet and for women it is 49 kg + 1.7 kg for every inch above 5 feet.
• Water constitutes 60-65% of the body weight in males and 50 % in females.
• Body Mass Index and waist circumference are the two factors that determine the ideal body weight.
• Measuring the waist circumference is more important as belly fat is more dangerous than fats in other parts of the body.
• Waist circumference above 35 inches in women and above 40 inches in men increases obesity-related issues.
• If you are obese, losing some fat can safeguard you from other diseases.
• Practicing mindful eating, reducing portion size, and cutting down on fatty foods are some of the ways to reach your goal.
• Include regular physical activity apart from changing the eating habits for a lifestyle change.
• A normal BMI indicates that a person is at no increased risk of any diseases due to weight.
• To maintain a healthy BMI, track the required calories the body needs each day.

Height and Weight Calculator

Healthy body weight is calculated based on the weight in proportion to the height. The BMI indicates whether the person’s weight is appropriate for their height.

A BMI between 18 –24.9 kg/m² is regarded as a normal weight for a person above 18 years of age.

The health issues caused due to underweight/ obese conditions can be managed with diet, exercise, and lifestyle changes.

If you are underweight for your height, increase the calorie intake that includes whole grains, vegetables, fruits, more protein, and healthy fats.

Height (in cm)	Weight (in kg) for Women	Weight (in kg) for Men
152	49	52
155	51	54
157	52	56
160	54	58
163	56	60
165	57	62
168	59	63
170	61	65
173	63	67
175	64	69
178	66	71
180	68	73

Make use of our BMI calculator to know your Body Mass Index and consult with our nutritionists to get a detailed idea about the menus and lifestyle changes for your health concerns.

Customize your meals from a wide range of cuisines according to your likes and medical problems.

FAQs

What is a BMI Calculator?

BMI Calculator is a method used to assess a person’s body mass index to height and weight. An obese person with a high BMI is said to be at greater risk of many life-threatening diseases.

BMI doesn’t consider body composition as a factor that affects BMI as it doesn’t differentiate between fat and muscle mass.

How to Calculate BMI?

Our BMI calculator serves the purpose. A simple way is to enter your height and weight and calculate your BMI. Athletes and bodybuilders may notice a high BMI due to their muscle mass and not due to their weight. The other way is to use the BMI formula

BMI = Weight/Height²

How Do I Calculate My BMI?

You have reached your destination. Please enter your height and weight in the BMI calculator at the top of this page, to know your BMI.

What is a Good BMI For My Age?

If your BMI drops below 18, it describes you as underweight. If the BMI is 18 – 24.9, it states that you are at a normal and healthy weight. If the BMI lies between 25 – 29.9, it is estimated as overweight.

Your body is obese if the BMI is 30 and above. You need to be cautious about your diet and lifestyle changes to manage your weight if you are obese.

What is a Normal BMI?

A normal BMI range from 18 – 24.9. it means that you are in the healthy range of weight in proportion to your height. A healthy life indicates that a person is physically, mentally, and emotionally fit and stress-free.

What BMI is Overweight?

BMI from 25 – 29.9 indicates a person is overweight. Being overweight may lead to adverse health issues.

Take the help of our nutritionists to reduce excess weight and get a personalized meal plan rich in essential nutrients to manage your weight loss.

Spend time on the physical workout to reach your desired goal.

What is the Ideal BMI For Children?

The BMI for children is measured in percentiles. Children below the 5 percentile range are regarded as underweight/malnourished. A percentile between 5 – 85 is termed as normal/healthy weight.

Children with a percentile 85 – 95 range are called to be overweight. BMI above 95 is regarded as obesity for the height, weight, age, and gender of children.

Is BMI Calculated with regard to age?

BMI calculator by age is used to calculate the BMI for children and teenagers but not used for adults. The BMI starts to decline after 1-year of age for small children and continues to drop till the age of 4-6. After that, BMI starts to increase until they reach the stage of adulthood.

How to Calculate BMI for Kids?

The BMI calculator for kids requires inputs such as gender, age, height, and weight. The BMI calculator provides the body mass index for children and teenagers from 2 to 19 years of age.

This calculator indicates whether the child is under normal weight, underweight, overweight, or obese.

How to Calculate BMI for Men?

BMI calculator for men simply needs the height and weight variables of the person to calculate the body mass index.

A person is more prone to health issues if he weighs more/less than the recommended body weight for their height. Use our online BMI calculator to know if you are under the appropriate category.

How to Calculate BMI for Teens?

The BMI calculator for teens is the same as for children. The percentile range decides if a teenager is skinny/normal/overweight.

The amount of body fat differs in girls and boys as they mature. This is the reason why we include age and gender as a factor to calculate the BMI for teenagers.

How to Calculate BMI for Women?

BMI calculator for women is used to reveal how healthy a woman is. Every woman is unique and not the same physically. The BMI values differ from one woman to another based on their weight and fat distribution.

Women usually face a lot of fluctuations in weight during the time of maturity, pregnancy, lactation, and other health problems like PCOD and thyroid problems. Use the BMI calculator to know your healthy weight in comparison to your height.

Does Waist Circumference Correlate with BMI?

Waist Circumference and BMI are used together by professionals to assess body weight and the risk of diabetes and heart-related ailments. Waist circumference is a measure of the fat around the waist.

If the waist circumference is more than 80 cm for a woman, she is at increased risk of diseases and it is 94 cm for men. Maintain the waist circumference to less than half of your height.

Is the Waist-to-Height Ratio a preferable method to BMI?

Waist-to-Height Ratio is used as a preference for BMI to measure obesity. It is a better predictor of the risks of diabetes and heart disease. A healthy person’s waist-to-height ratio ranges between 0.46 – 0.53 in males and 0.46 – 0.49 in females.

Does the Waist-to-Hip Ratio affect BMI levels?

Waist-to-Hip Ratio (WHR)is calculated by dividing the waist circumference by the hip measurement. It has been found that there is a positive connection between the waist-to-hip ratio and BMI levels.

The higher the waist-to-hip ratio the more the chances of obesity. Obesity is the criteria for higher BMI. The waist-to-hip ratio for a healthy person (men) should be 0.9 or less and for women, it should be 0.85 or less.