BMI for 45 kg and 150 cm
Using Indian BMI standards (ICMR / WHO Asia-Pacific guidelines)
Your BMI
20
Normal weight
Ideal weight for 150 cm (Indian standard)
42 – 52 kg
Your weight is in the healthy range. Maintain a balanced diet and regular exercise.
Full BMI Calculator - adjust your measurements
Healthy Weight Range
53.5–66.2 kg
Weight to Lose
3.8 kg to Normal
BMI Prime
0.97
| Category | BMI Range (South Asian) |
|---|---|
| Underweight | < 18.5 |
| Normal | 18.5 – 22.9 |
| Overweight | 23 – 27.4 |
| Obese I | 27.5 – 32.4 |
| Obese II+ | ≥ 32.5 |
This calculator is for informational purposes only and is not medical advice. Consult a healthcare professional before making changes to your diet, exercise, or health routine.
What is the BMI for 45 kg and 150 cm?
The BMI for 45 kg weight and 150 cm height is 20 — Normal weight on the standard WHO scale and Normal weight on the Indian/Asia-Pacific scale. The healthy weight for 150 cm is 41.6–56 kg (WHO BMI 18.5–24.9), or the stricter 42–52 kg (Indian BMI 18.5–22.9) recommended by the ICMR.
BMI 20 on both classification scales
WHO / International
Asia-Pacific / India (ICMR)
A BMI of 20 is classified as Normal weight internationally and Normal weight under the lower Indian cutoffs, which flag health risk from a BMI of 23 rather than 25.
Healthy weight range for 150 cm
WHO healthy range (BMI 18.5–24.9)
41.6 – 56 kg
international standard
Indian healthy range (BMI 18.5–22.9)
42 – 52 kg
ICMR / Asia-Pacific
You are within range
0 kg
no change needed
At 45 kg you are inside the healthy WHO range of 41.6–56 kg for 150 cm.
Maintaining 45 kg at 150 cm
At 45 kg you are already inside the healthy WHO range of 41.6–56 kg for 150 cm, so the goal is maintenance. Eating near your maintenance calories, staying active, and keeping up strength work will hold your weight steady.
Estimated daily calories at 45 kg / 150 cm
Men (maintenance)
1926 kcal/day
BMR 1243 kcal × 1.55 activity
Women (maintenance)
1669 kcal/day
BMR 1077 kcal × 1.55 activity
These figures use the Mifflin-St Jeor BMR equation and assume age 30 with moderate activity (exercise 3–5 days a week, activity factor 1.55). They are estimates only — your actual needs shift with age, sex, muscle mass, and how active you really are. To lose about 0.5 kg/week, subtract roughly 550 kcal/day from these numbers.
How BMI changes near 45 kg (at 150 cm)
| Weight | BMI | WHO category | Indian category |
|---|---|---|---|
| 35 kg | 15.6 | Underweight | Underweight |
| 40 kg | 17.8 | Underweight | Underweight |
| 45 kg (this page) | 20 | Normal weight | Normal weight |
| 50 kg | 22.2 | Normal weight | Normal weight |
| 55 kg | 24.4 | Normal weight | Overweight |
At 150 cm, every 5 kg changes your BMI by about 2.2 points. Small, steady changes in weight move you gradually between BMI bands — there is no need for drastic swings.
This is general information based on BMI and standard formulas, not medical advice. BMI is a screening tool and does not measure body fat, muscle, or fat distribution. For guidance specific to you, consult a doctor or registered dietitian.
Frequently Asked Questions
Is 45 kg a healthy weight at 150 cm?▾
At 45 kg and 150 cm your BMI is 20. On the standard WHO scale that is "Normal weight", and on the Asia-Pacific/India scale (ICMR) it is "Normal weight". A weight of 41.6–56 kg (WHO BMI 18.5–24.9), or the stricter 42–52 kg by the Indian cutoff, is considered healthy for this height. Your weight is in the healthy range. Maintain a balanced diet and regular exercise.
What is the ideal weight for 150 cm height?▾
For 150 cm, the healthy weight band is 41.6–56 kg using the WHO BMI range (18.5–24.9), and 42–52 kg using the Indian/Asia-Pacific range (18.5–22.9). Classic ideal-weight formulas (Hamwi, Devine, Robinson, Miller) average to about 51.6 kg for men and 48.3 kg for women at this height — a single "ideal" figure inside the same range.
Do I need to lose or gain weight at 45 kg and 150 cm?▾
At 45 kg you are already inside the healthy range of 41.6–56 kg for 150 cm, so the goal is maintenance rather than loss or gain.
How many calories a day maintain 45 kg at 150 cm?▾
Using the Mifflin-St Jeor equation and assuming age 30 with moderate activity (exercise 3–5 days a week, activity factor 1.55), an estimated maintenance intake at 45 kg / 150 cm is about 1926 kcal/day for men and 1669 kcal/day for women. These are estimates — your real needs vary with age, muscle mass, and how active you are.
Is BMI accurate for muscular or athletic builds?▾
BMI only compares weight to height — it does not distinguish muscle from fat. A muscular or athletic person can show a BMI of 20 in the "overweight" band while carrying very little body fat, and a sedentary person at the same BMI can carry much more. For lean, heavily trained bodies, waist circumference, waist-to-height ratio, or a body-fat measurement gives a truer picture than BMI alone.
Why are the Indian (Asian) BMI cutoffs lower than the WHO standard?▾
Indians and other South and East Asians tend to carry more body fat and abdominal (visceral) fat at the same BMI as Western populations, and face heart-disease and type-2-diabetes risk at lower weights. So the ICMR and the WHO Asia-Pacific guidelines lower the thresholds: normal is 18.5–22.9 (not 24.9), the overweight/at-risk band starts at 23, and obesity begins at 25 instead of 30. At BMI 20 this is why your Indian category ("Normal weight") can differ from the WHO category ("Normal weight").
What health category does BMI 20 fall into?▾
A BMI of 20 is "Normal weight" on the WHO scale and "Normal weight" on the Indian/Asia-Pacific scale. Your weight is in the healthy range. Maintain a balanced diet and regular exercise. BMI is a screening tool, not a diagnosis — use it alongside waist size, blood pressure, blood sugar, and your doctor's advice.