At 100kg the BMI runs from 44.4 at 150cm to 25.0 at two metres — a spread of 19.4 points, the widest on this set of pages. The healthy heights for 100kg run from 200 to 232cm, which is taller than essentially anyone. At two metres exactly the BMI is 25.0, sitting precisely on the boundary between the healthy and overw..
= 5ft 8.9in
YOUR RESULTS
BODY MASS INDEX
32.7
Obese Class I
BMI PRIME
1.31
Normal = 0.74–1.00
PONDERAL INDEX
18.7
kg/m³
HEALTHY WEIGHT RANGE
56.7 – 76.3 kg
Lose 23.7 kg to reach healthy weight
Moderately obese. Increased risk of cardiovascular disease and diabetes.
BMI GAUGE
YOUR POSITION
FULL SUMMARY
WHO BMI CATEGORIES
The weight is already set to 100kg, which is about 220 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 100kg the healthy band runs 200 to 232cm, 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 100kg — about 220 pounds — the BMI is undetermined until a height is supplied. At 150cm it is 44.4, at 175cm 32.7, and at 200cm 25.0: a spread of 19.4 points from one unchanged weight, which is wider than the entire healthy band. Inverting the formula gives what a weight can determine: 100kg sits inside the healthy BMI band for heights between 200cm and 232cm, a window 32cm wide, or roughly 6ft 7in to 7ft 8in. On the WHO 2004 cut-offs for South and East Asian populations the shortest suitable height rises to 209cm, 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.