The models on this wiki have various different weight classes according to their peak weight:
| Class | Weight range |
|---|---|
| Chubby | 150 - 200 lb (68 - 91 kg) |
| BBW | 200 - 350 lb (91 - 159 kg) |
| SSBBW | 350 - 600 lb (159 - 272 kg) |
| USSBBW | 600+ lb (272+ kg) |
| Immobility | N/A |
These weight ranges are an estimate, see each individual page for more information.
Some models lose weight, either from dieting, exercise, weight loss surgery, or a combination of the three. We try to document both their last known weight and peak weight (given they differ from each other).
Bra sizing
A model's bra size can change based on their weight. Refer to this conversion chart when converting between different bra sizing standards.
Weight conversion table
| Pounds/lb | Kilograms/kg | Stone/st |
|---|---|---|
| 150 lb | 68 kg | 11 st |
| 180 lb | 82 kg | 13 st |
| 200 lb | 91 kg | 14 st |
| 250 lb | 113 kg | 18 st |
| 300 lb | 136 kg | 21 st |
| 400 lb | 181 kg | 29 st |
| 500 lb | 227 kg | 36 st |
| 600 lb | 272 kg | 43 st |
| 700 lb | 318 kg | 50 st |
| 800 lb | 363 kg | 57 st |
| 900 lb | 408 kg | 64 st |
| 1000 lb | 454 kg | 71 st |
| 1100 lb | 499 kg | 79 st |
| 1200 lb | 544 kg | 86 st |
Numbers are rounded up (or down) to the closest whole number.