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 | 5¼in | double | 512 | 9 | 40 | 2 | 360KB | MFM |
| IBM PC compatibles | 5¼in | unknown | 512 | 8 | 80 | 1 | 320KB | MFM |
| IBM PC compatibles | 5¼in | unknown | 512 | 8 | 80 | 2 | 640KB | MFM |
| IBM PC compatibles | 5¼in | high | 512 | 15 | 80 | 2 | 1200KB | MFM |
| IBM PC compatibles | 3½in (90mm) | double | 512 | 8 | 80 | 1 | 320KB | MFM |
| IBM PC compatibles | 3½in (90mm) | double | 512 | 8 | 80 | 2 | 640KB | MFM |
| IBM PC compatibles | 3½in (90mm) | double | 512 | 9 | 80 | 2 | 720KB | MFM |
| IBM PC compatibles | 3½in (90mm) | high | 512 | 18 | 80 | 2 | 1440KB | MFM |
| IBM PC compatibles | 3½in (90mm) | high | 512 | 21 | 80 | 2 | 1680KB | MFM |