BMI Calculator

Runs in your browserCalculators#Health

BMI with Asian/Indian or WHO categories, your healthy weight range, and kg to lose or gain.

BMI categories

Asian / Indian cut-offs are lower, because health risks start at a lower BMI.

Weight

Height

For adults (18 and over). Not suitable for children and teenagers, who need BMI-for-age charts, during pregnancy, or for very muscular people such as athletes.

Your BMI (Asian / Indian categories)24.2OverweightLosing about 3.8 kg would bring you into the healthy range.

Healthy weight for 170 cm: 53.5 – 66.2 kg

Asian / Indian BMI categories for adults
Category	BMI
Underweight	Below 18.5
Healthy weight	18.5 – 22.9
OverweightYou	23 – 24.9
Obese	25 and above

How to use, limits & privacy

About BMI Calculator

Work out your Body Mass Index (BMI) from your weight and height, in kg or lb and cm or feet and inches. By default it uses the Asian / Indian cut-offs, which are lower than the WHO ones because health risks start at a lower BMI, and you can switch to WHO. It also shows the healthy weight range for your height and roughly how many kg to lose or gain. It runs in your browser.

How to Use

Choose the categories

Asian / Indian is selected by default. Choose WHO to use the international cut-offs instead.

Enter your weight and height

Type your weight in kg or lb and your height in cm or feet and inches. Switching a unit converts the number already entered.

Read your result

Your BMI, its category, the gauge, your healthy weight range and the category table update as you type.

Privacy & Processing

Mode: local
Files Leave Browser: Local tool processing; review details below
Max Input Size: Device memory limits
Account Required: No
Data Stored Locally: Nothing is saved; the values reset when you reload the page.
Network Processing: Assets or models may require an initial download

Your weight and height stay in your browser. Nothing is sent to a server.

Rules & Limitations

For adults aged 18 and over. Children and teenagers need BMI-for-age charts instead.
Not suitable during pregnancy, or for very muscular people such as athletes, whose weight comes from muscle.
BMI is rounded to one decimal, and the category is based on that rounded number.
BMI is a screening number, not a diagnosis. Waist size and other checks matter too, so talk to a doctor about your health.

Top Suggestions

Checking whether your weight is in the healthy range for your height
Setting a weight goal in kg
Comparing Indian and WHO BMI categories
Converting weight between kg and lb, and height between cm and feet

BMI Calculator FAQ

What is a healthy BMI for Indians?

For Indian and other Asian adults, a healthy BMI is 18.5 to 22.9. 23 to 24.9 is overweight and 25 or more is obese. These cut-offs, used in India's 2009 consensus guidelines, are lower than the WHO ones because diabetes and heart risks rise at a lower BMI.

How is BMI calculated?

BMI is weight in kilograms divided by height in metres squared. For 70 kg and 1.70 m, that is 70 ÷ (1.70 × 1.70) = 24.2.

What is the difference between the Asian and WHO BMI ranges?

WHO counts 18.5 to 24.9 as normal, 25 to 29.9 as overweight and 30 or more as obese. The Asian / Indian ranges are lower: normal up to 22.9, overweight from 23 and obese from 25.

How much weight should I lose to reach a healthy BMI?

The calculator shows the healthy weight range for your height and how many kg you are above or below it. For 170 cm on the Indian cut-offs, the range is about 53.5 to 66.2 kg.

Can I use this BMI calculator for children?

No. Children and teenagers need BMI-for-age percentile charts, because healthy BMI changes as they grow. Ask a paediatrician.

Is my weight sent anywhere?

No. The calculation happens in your browser and nothing is uploaded or saved.