Your Details
BMI formula is identical for both genders. Gender affects only the BMR/TDEE calculation.
Your BMI
Normal Weight
Your weight is in a healthy range. Keep it up!
Healthy Weight Range
53.5–72.0 kg
Weight to Adjust
–
BMR (Male)
1,680 kcal
TDEE
2,016 kcal
BMI Scale
BMR Comparison — Male vs Female
At your current height, weight and age (Mifflin-St Jeor formula)
Male BMR = 10W + 6.25H − 5A + 5 | Female BMR = 10W + 6.25H − 5A − 161
Selected gender: Male
TDEE = BMR × Activity Factor. Your selected activity gives 2,016 kcal/day — the calories to maintain your current weight.
BMI Classification
| Category | WHO | Asian/Indian |
|---|---|---|
| Underweight | < 18.5 | < 18.5 |
| Normal Weight | 18.5–24.9 | 18.5–22.9 |
| Overweight | 25–29.9 | 23–27.4 |
| Obese Class I | 30–34.9 | 27.5–32.4 |
| Obese Class II | 35–39.9 | 32.5–37.4 |
| Obese Class III | ≥ 40 | ≥ 37.5 |
What is BMI?
BMI (Body Mass Index) is a simple measurement that uses your height and weight to work out if your weight is in a healthy range. It was developed by Belgian statistician Adolphe Quetelet in the 19th century and is used worldwide as a quick screening tool for weight-related health issues.
The formula is the same for both male and female:
For imperial: BMI = 703 × Weight (lbs) ÷ Height² (inches²)
BMR Formula — Male vs Female
BMR (Basal Metabolic Rate) is calculated differently for male and female using the Mifflin-St Jeor equation (the most accurate modern formula):
Male BMR
= 10 × W(kg) + 6.25 × H(cm) − 5 × Age + 5
Example: 70kg, 170cm, 30yr → 1,680 kcal/day
Female BMR
= 10 × W(kg) + 6.25 × H(cm) − 5 × Age − 161
Example: 70kg, 170cm, 30yr → 1,514 kcal/day
Male BMR is higher because men generally have more muscle mass and less body fat than women of the same weight. The difference is 166 kcal/day at identical stats.
BMI Example Calculations
Asian BMI note
For Indians, a BMI of 23+ is already considered overweight. The same 70kg/170cm male (BMI 24.2) is normal by WHO but borderline overweight by Asian standards.
TDEE Activity Multipliers
TDEE = BMR × Activity Factor. This is your daily calorie target to maintain current weight.
Desk job, little to no exercise
Light exercise 1–3 days/week
Moderate exercise 3–5 days/week
Hard exercise 6–7 days/week
Physical job + hard training daily
Limitations of BMI
- →Doesn't distinguish muscle from fat — a bodybuilder and an obese person can have the same BMI. Athletes often show "overweight" despite very low body fat percentage.
- →Ignores fat distribution — belly fat (visceral fat) is far more dangerous than fat in legs or arms. Two people with the same BMI can have very different health risks.
- →Not ideal for elderly — older people tend to lose muscle mass, so BMI may appear normal while actual body fat is high.
- →Race and ethnicity — South Asians have higher disease risk at lower BMI values than Caucasians. Asian-specific thresholds (23 for overweight) are more appropriate for Indians.
Healthy BMI Tips for Indians
- →Target BMI 18.5–22.9 — for South Asians, staying in the lower end of the normal range (18.5–22.9) is associated with better metabolic outcomes than the WHO upper limit of 24.9.
- →Waist circumference matters — for Indians, a waist > 90 cm (men) or > 80 cm (women) is a risk factor for metabolic syndrome, even at normal BMI.
- →Calorie awareness — know your TDEE. To lose 0.5 kg/week, eat ~500 kcal/day less than your TDEE. To gain, eat ~300–500 kcal more.
- →Use BMI alongside other checks — blood sugar, blood pressure, waist measurement, and lipid profile give a more complete health picture than BMI alone.
Frequently Asked Questions
Common questions about BMI, BMR and healthy weight