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What is It and How to Calculate BMI?- HealthifyMe

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The physique mass index (BMI) is a approach of understanding whether or not a person’s weight is in a wholesome proportion to their peak. A BMI studying can estimate any weight-related well being dangers one would possibly face.

For many adults, a BMI worth within the low vary indicators that they’re underweight or malnourished. On the similar time, a excessive BMI alerts your dangers of coronary heart illness, diabetes, and sure continual circumstances associated to being overweight or chubby. Nonetheless, BMI will not be an totally dependable evaluation for each physique sort. 

With extra improvements and analysis within the healthcare area, specialists imagine that though BMI is without doubt one of the elementary methods to evaluate wholesome physique weight, it has its limitations. Therefore, This text will make it easier to be taught extra about BMI, BMI chart, and extra.

BMI – An Overview

A health care provider often measures a affected person’s weight and peak to calculate their physique mass index or BMI. It’s a statistical index that makes use of weight and peak to estimate physique fats in grownup men and women of any age. In different phrases, BMI tells whether or not or not an individual is at a wholesome weight for his or her peak. 

The taller an individual is, the extra they’re anticipated to weigh. Everybody’s rating will fall someplace on the BMI scale, which classifies the measurement as underweight, wholesome, chubby, or a degree of weight problems. 

A wholesome BMI ought to fall between 18.5 and 24.9. If an individual’s BMI is decrease than 18.5, they’re thought of underweight. If an individual’s BMI is 30 or increased, they’re thought of overweight.

BMI is a useful metric to provide docs and healthcare professionals a common thought of a affected person’s well being, however it’s not the be-all-end-all of well being metrics. There are different important components to think about when growing a care plan for a affected person. 

HealthifyMe creates a medium that may present extra detailed details about a affected person’s BMI and different necessary well being metrics. For instance, one can use the BMI calculator to evaluate their BMI readings. 

Calculate Your Physique Mass Index (BMI)

How Can I Provoke my Health Journey with HealthifyMe?

As soon as you put in the HealthifyMe app and choose a plan, you may select your well being and health coach, who helps deliver your BMI to a standard vary.

There’s a vary of premium choices to assist tens of millions of customers obtain their objectives. If you’re uncertain concerning the plan that fits you one of the best, you may speak to a senior coach to determine one of the best HealthifyMe premium plan primarily based in your physique sort, BMI, life-style, weight acquire historical past, and medical circumstances (if any).

There’s no one-size-fits-all. The concept right here is to supply customised steering primarily based in your particular wants and necessities. Keep in mind that what works for an individual with a excessive BMI might not work for somebody with a low BMI. 

The principal function of the HealthifyMe app is to enhance physique and well being metrics by way of personalised options, thus equipping you to take care of a wholesome BMI.

BMI – The three Ratios to Measure Your Well being & Health ranges

The best way to Calculate BMI?

Looking for a free BMI calculator on-line is the simplest method to calculate your BMI. As soon as you discover one, all it’s essential do is enter your weight and peak.

You’ll be able to manually calculate BMI by dividing your weight (in kilograms) by the sq. of your peak (in metres) or BMI = Kg/M^2. Since peak is often measured in centimetres, there’s an alternate BMI calculation system of dividing the load (in kg) by the peak in centimetres squared after which multiplying the end result by 10,000. 

For instance, if an individual weighs 64 kg and is 1.9 metres tall, their BMI is:
  • BMI = 64 ÷ (1.9 x 1.9)
  • BMI = 64 ÷ 3.61
  • BMI = 17.7
If the peak is in centimetres:
  • BMI = 64 ÷ (190 x 190)
  • BMI = 64 ÷ 36100
  • BMI = 0.00177 x 10,000
  • BMI= 17.7

In US models, the load is in kilos, and the peak is in inches. So, divide the load by the overall inches squared after which multiply the end result by 703. Or BMI = (W ÷ H^2) x 703

Suppose an individual weighs 184 kilos and is 5 ft, 10 inches tall. Discover the overall inches by multiplying 5 by 12 and add 10 to the ensuing determine. 

  • 5 ft, 10 inches = 5×12 + 10 = 70 inches
  • BMI = (184 ÷ 702) x 703
  • BMI = (184 ÷ 4900) x 703
  • BMI = 0.3755 x 703
  • BMI = 26.4

Traditional BMI estimates apply solely to adults. Nonetheless, these indicators won’t provide the right outcomes for those who’re pregnant or lactating. However, having a excessive BMI earlier than being pregnant or throughout early being pregnant can have an effect on your being pregnant. 

Moreover, the BMI calculation for kids and adolescents can also be not evaluated utilizing these thresholds however will get thought of relative to others of the identical age and gender.

BMI Chart for Males and Ladies

A BMI chart helps decide your BMI weight class, wherein you’ll discover your peak (in cm or inches) on the left column after which transfer throughout the row to search out your weight. Then, transfer up the chart desk to find your BMI rating and weight class. Or meet the 2 factors (your peak and weight) within the graph to search out your BMI. 

There are two BMI charts. One is when an individual’s weight is 250 lb (113 kg) or underneath. In case your weight is over 250 lb, have a look at the second chart. The chart differentiation is to depict average weight, chubby, or weight problems comparable to your weight. 

As per the data, the usual weight standing classes as per BMI are as follows:

BMI Chart – The Superb BMI Vary for Males and Ladies

BMI Weight customary
BMI lower than 16.5 Severely underweight
Beneath 18.5 Underweight
18.5 to 24.9 Wholesome weight
25.0 to 29.9 Obese
30.0 and above Weight problems
30 to 34.9 Weight problems class I
35 to 39.9  Weight problems class II
BMI larger than or equal to 40 Weight problems class III (also called extreme, excessive, or huge weight problems)

Research suggests that individuals with increased BMIs (BMI ≥30) are extra liable to health-related problems, together with diabetes. 

One other study additionally reveals that BMIs over 25 result in coronary heart illness and hypertension. Additional, being severely underweight (BMI ≥16.5) can also be a danger for untimely dying, generally much more so than being chubby. 

The CDC recommends a BMI-for-age calculation in youngsters and adolescents between the age of two and 20. It’s as a result of youngsters’s physique fats differs with age, and girls and boys present totally different progress charges. 

The BMI calculation is identical for ladies and boys, however there are separate BMI progress charts for ladies and boys. 

The BMI percentile scale for kids is as follows:

BMI (youngsters) Weight customary
Beneath the fifth percentile Underweight
fifth to eighty fifth percentiles Wholesome weight
eighty fifth to ninety fifth percentiles Obese
Higher than the ninety fifth percentile Overweight

If you’re of Asian origin, the BMI classification varies from the usual feminine and male BMI chart. Asian persons are liable to accumulating intra-abdominal fats at a decrease BMI than individuals of Caucasian origin. So, the thresholds for the chubby and overweight classes are decrease. 

For instance, in Hong Kong and Singapore, a BMI of 23 falls underneath the chubby class, whereas in the USA, a BMI rating of 25 is taken into account chubby.

For Asian and South Asian populations:

BMI (Asian and South Asian) Weight customary
BMI between 23 and 24.9 Obese
BMI larger than 25 Weight problems

The HealthifyMe Notice

The BMI chart is mostly for adults aged 20 and older and is identical for grownup women and men. BMI calculations are adjusted for gender once they’re for kids and youths. Furthermore, the pediatric BMI chart permits comparability between youngsters of the identical intercourse and age. Since particular person variations exist, BMI will not be all the time the correct method to classify an individual as overweight or malnourished.

BMI Limitations and Issues

Whereas BMI is a place to begin to display screen for an unhealthy weight-height ratio that will result in well being points, it’s usually not a dependable or sensible estimate. 

That’s as a result of BMI calculations don’t take into account age, gender, physique body measurement, muscle mass, genetic components, bone density, exercise degree, or fats distribution.

Subsequently, even when your BMI is within the regular vary, you possibly can nonetheless have excessive visceral fats because the check doesn’t account for fats. As well as, BMI checks fail to comply with the truth that being skinny doesn’t essentially equal being wholesome.

BMI additionally doesn’t take into account muscle mass. Muscle weighs greater than fats, so when you have toned muscle tissues or elevate weights, your BMI rating may very well be excessive even for those who’re not chubby or overweight. 

For instance, an athlete with a excessive BMI will nonetheless be metabolically wholesome and have little visceral fats. In order per the BMI requirements, even a leisure athlete with barely above-average muscle mass may fall into the chubby class. 

Ladies usually have extra physique fats than males. Nonetheless, BMI doesn’t accurately measure this physiological physique fats share distinction between men and women. 

Along with gender-based fats distribution, BMI fails to think about ethnic disparities in physique fats. Therefore, BMI is a flawed method for the explanations given above.

Higher Measurements of Well being

If you don’t imagine that Physique Mass Index (BMI) will not be a completely correct method to measure your well being, there are different instruments to evaluate your indicators of wellness and physique fats ranges. Even when your BMI will not be excessive, it’s best to focus in your metabolic parameters to amass a wholesome weight. 

The HealthifyPro 2.0 programme by HealthifyMe may also help you assess your ‘metabolic well-being’ by way of real-time insights into your Glucose ranges and a whole well being screening throughout 85+ well being parameters. 

This skilled well being programme features a Good Scale that breaks down your physique weight into 12+ parameters like physique fats, muscle mass, protein, hydration, and extra. Your Good Scale measures your progress and helps you lose the correct of weight inside the fitting period.

You solely want a easy Bluetooth connection to sync your Good Scale along with your cellphone (iOS and Android). Together with BMI, HealthifyMe Good Scale helps you observe weight, physique fats, visceral fats, BMR, metabolic age, muscle mass, bone mass, subcutaneous fats, and skeletal mass. 

A one-on-one session with the HealthifyMe well being coaches may also help you design a food plan and coaching routine tailor-made to your particular BMI wants.

HealthifyPro and its improved model, HealthifyPro 2.0, can help to find what meals give you the results you want, what don’t, what you might be doing mistaken, and the way a lot it’s best to train. Regardless of whether or not you will have a excessive BMI or not, the Professional plan nudges you to make more healthy meals decisions all through the day. As well as, monitoring your blood sugar in real-time may also help fine-tune your consuming habits, cut back calorie consumption and probably drop a few pounds.

Since every consumer is totally different, the app supplies a customized food plan to assist drop a few pounds, attain good metabolic well being, and have a wholesome BMI vary. The coaches are simply accessible and supply well timed steering on the actions it’s best to do.

As well as, you may straight message them on the app whenever you really feel one thing is mistaken. As famous earlier, pairing the good scale with the HealthifyPro app reveals you the load (share) you will have misplaced and the way rather more it’s essential lose. And after you have the information, you might be one step nearer to attaining a really perfect BMI. 

There are some BMI chart alternate options you should utilize.

Waist Circumference

Measure your waist circumference midway between the ribcage’s backside area and the highest of your hip bones. You have to be respiratory out and preserve the tape measure parallel to the ground whenever you measure. 


  • Elevated well being danger: ≥80cm
  • Excessive well being danger: ≥88cm


  • Elevated well being danger: ≥94cm                  
  • Excessive well being danger: ≥102cm

Waist-To-Hip Ratio

Aiming to cut back the waist-to-hip ratio is healthier than attempting to decrease BMI. To measure, discover your waist circumference and hip measurement on the widest a part of your hips. Then, divide your waist circumference by your hip measurement to get a ratio. 

In girls, a ratio larger than 0.85 is unhealthy. For males, the waist-to-hip ratio have to be lower than 1.00. 

Guide monitoring and calculation is an enormous dedication and time-consuming. However now, with on-demand health and fitness apps like HealthifyMe, you may obtain weekly well being standing experiences with technology-augmented insights. Additionally, it helps you higher handle your every day routine and attempt in direction of a more healthy one.


The BMI, or physique mass index, measures your physique fats primarily based on peak and weight. BMI doesn’t measure physique fats straight, however it’s useful to estimate whether or not you might be carrying an excessive amount of weight to your peak. BMI is used to display screen for weight classes that will result in well being issues, however it’s not a diagnostic software. 

For instance, a BMI of 25-35 is taken into account wholesome for most individuals, however this vary could also be too excessive for some individuals, particularly those that are muscular or athletic. A BMI over 35 might improve the chance of continual well being issues.

If you’re involved about your weight, it’s best to seek the advice of a physician or healthcare skilled. The skilled coaches at HealthifyMe may also help you perceive the affect of food plan and life-style on BMI and supply a personalised food plan and health plan to succeed in your goal weight aim. 

A subscription to the HealthifyMe app is the simplest method to construct general well being and health.

Continuously Requested Questions (FAQs)

Q. What is an efficient BMI for a girl?

A. Docs take into account 18.5–24.9 because the average BMI vary for girls. A BMI of 30 or above might signify weight problems. Nonetheless, the BMI will not be an correct reflector of physique fats if a girl is pregnant, lactating, or over 60. In such instances, measuring your belly circumference, waist-hip, or waist-height ratio is the best choice.

Q. What is an efficient BMI for girls my age?

A. For most ladies within the grownup age group, a really perfect BMI is within the 18.5 to 24.9 vary. Nonetheless, some Asian girls come underneath the chubby class if their BMI is 22-25 and overweight if their BMI is round 26-31. Then again, older girls do higher if they’ve a BMI rating between 25 and 27. Furthermore, in case you are an older grownup, having a BMI beneath 23 or above 33 poses well being dangers. 

Q. How a lot ought to a 5’5 feminine weigh?

A. A 5′ 5″ feminine ought to weigh round 51.2/62.6 kg or 113/138 lb. Nonetheless, your supreme weight is determined by age and physique composition components like bone, muscle, and fats content material. So, this worth is an approximate weight that it’s best to preserve.

Q. How a lot ought to a 5’4 feminine weigh?

A. In response to the peak weight chart, a median 5′ 4″ feminine’s supreme weight will be between 49/59.9 kg or 108/132 lb. Nonetheless, your weight can fluctuate from this worth relying on a number of components like age, physique body, food plan, medical historical past, and life-style. 

Q. How a lot ought to a 60-year-old girl weigh?

A. The perfect weight for older girls varies in accordance with peak and body measurement. For instance, a 60-year-old girl who’s 5 ft 2 inches tall has a fascinating physique weight vary of 108 to 143 lbs, whereas a 5-foot-6 girl of the identical age has a wholesome weight vary of 120 to 159 kilos.

Q. How a lot ought to a 67-year-old girl weigh?

A. The common girl of 67 years weighs 166 lb or 75 kg. Nonetheless, it’s totally different for girls with smaller physique frames. Your racial and ethnic background performs an element too. For instance, most Asian girls weigh round 140 lb or 63 kg at 67 years. 

Q. What’s an unhealthy weight for a 5’ 4 feminine?

A. For a 5′ 4″ feminine, a weight beneath 49 kg or 108 lb is unhealthy. On the similar time, weighing greater than 59.9 kg or 132 lb may also result in weight-related well being dangers. Subsequently, the perfect weight vary for a 5′ 4″ feminine is round 49/59.9 kg or 108/132 lb. 

Q. What’s a wholesome physique weight for five 5?

A. As per the height-to-weight ratio chart information, the wholesome physique weight for a 5′ 5″ feminine is 51.2/62.6 kg or 113/138 lb. For males of the identical peak, weighing round 55.3/68 kg or 122/150 lb is wholesome. Moreover the wholesome weight pointers for men and women, the perfect weight may also depend upon the physique sort and exercise degree.

Q. What is an efficient weight for a 5-foot-tall girl?

A. The wholesome weight for a 5-foot-tall girl can range per the physique body. For instance, a small-framed 5-foot-tall girl ought to weigh about 90 kilos or a minimum of 40.8 kilograms, whereas a medium-framed girl of the identical peak ought to ideally weigh 100 lb or 45 kg. And a large-framed 5-foot-tall girl ought to weigh about 110 kilos or 49.9 kg. Subsequently, the perfect weight of a 5-foot-tall feminine is between 40.8 kg to 49.9 kg.

Q. How a lot ought to a 70-year-old weigh?

A. At 70 years outdated, the perfect weight of a median man of peak 157-172 cm will be between 141-157 lb or 64-71 kg. Nonetheless, the vary can go as excessive as 172-197 lb or 78-89 kg if the particular person is of a big body with a peak of greater than 6′ 2″. The common weight for girls at 70 years outdated is round 160 lb or 72.5 kg.

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