List of floppy disk formats Known disk logical formats Common floppy disk formats, logical characteristics by platform

| Platform | Size_ | Density | Bytes_sector | Sectors_track | Tracks_side | Sides | Capacity | Encoding_ |
|---|---|---|---|---|---|---|---|---|
| IBM PC compatibles | 3½in (90mm) | high | 512 | 21 | 82 | 2 | 1720KB | MFM |
| IBM PC compatibles | 3½in (90mm) | extended | 512 | 36 | 80 | 2 | 2880KB | MFM |
| NEC PC98 | 8in | single | 128 | 26 | 77 | 1 | 250.25KB | FM |
| NEC PC98 | 8in | double | 1024 | 8 | 77 | 2 | 1232KB | MFM |
| NEC PC98 | 5¼in | double | 512 | 8 | 80 | 2 | 640KB | MFM |
| NEC PC98 | 5¼in | double | 512 | 9 | 80 | 2 | 720KB | MFM |
| NEC PC98 | 5¼in | high | 512 | 15 | 80 | 2 | 1200KiB | MFM |
| NEC PC98 | 5¼in | high | 1024 | 8 | 77(80) | 2 | 1232(1280)KB | MFM |
| NEC PC98 | 3½in (90mm) | double | 512 | 8 | 80 | 2 | 640KB | MFM |
| NEC PC98 | 3½in (90mm) | double | 512 | 9 | 80 | 2 | 720KB | MFM |