At 150kg the BMI is 49.0 at 175cm, 41.6 at 190cm and 37.5 at two metres — the highest figures on this set of pages. The arithmetic still yields a healthy height band, 245 to 285cm, but only two or three people in recorded history have been that tall. The formula extends without limit and human beings do not, which is ..
= 5ft 8.9in
YOUR RESULTS
BODY MASS INDEX
49.0
Obese Class III
BMI PRIME
1.96
Normal = 0.74–1.00
PONDERAL INDEX
28.0
kg/m³
HEALTHY WEIGHT RANGE
56.7 – 76.3 kg
Lose 73.7 kg to reach healthy weight
Very severely obese. High risk of serious health complications.
BMI GAUGE
YOUR POSITION
FULL SUMMARY
WHO BMI CATEGORIES
The weight is already set to 150kg, which is about 331 pounds. Enter your height and the BMI follows — until you do, the figure is undetermined.
Both unit systems are seeded, so switching between kilograms and pounds keeps the same weight rather than reverting to a default.
Read the band of heights rather than any single BMI. At 150kg the healthy band runs 245 to 285cm, and that band is what a weight actually determines.
A reading near a category boundary should be read as near a boundary. Most people vary by one to two kilograms across a day from food and fluid alone.
At 150kg — about 331 pounds — the BMI is undetermined until a height is supplied. At 150cm it is 66.7, at 175cm 49.0, and at 200cm 37.5: a spread of 29.2 points from one unchanged weight, which is wider than the entire healthy band. Inverting the formula gives what a weight can determine: 150kg sits inside the healthy BMI band for heights between 245cm and 285cm, a window 40cm wide, or roughly 8ft 1in to 9ft 4in. On the WHO 2004 cut-offs for South and East Asian populations the shortest suitable height rises to 256cm, because those thresholds lower the top of the BMI band while leaving 18.5 in place.
FORMULA REFERENCE TABLE
| Name | Formula | Description |
|---|---|---|
| BMI (Metric) | BMI = weight(kg) / height(m)² | Divide weight in kg by height in metres squared |
| BMI (Imperial) | BMI = 703 × weight(lbs) / height(in)² | Multiply weight in pounds by 703, divide by height in inches squared |
| Height in metres | h(m) = h(cm) / 100 | Convert centimetres to metres before squaring |
| BMI Prime | BMI Prime = BMI / 25 | Ratio of BMI to upper limit of normal (25). Values >1.00 indicate overweight |
| Ponderal Index | PI = weight(kg) / height(m)³ | More accurate than BMI for very tall or short individuals. Normal: 11–15 kg/m³ |
| Healthy weight | w = BMI × height(m)² | Rearranged BMI formula: weight(kg) for any target BMI at your height |
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Last updated: August 2, 2026 · Formula verified by EagleCalculator team · Source: WHO Global Database on Body Mass Index · Eagle-eyed accuracy for every calculation.