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 (3740format) | 8in | single | 128 | 26 | 74 | 1 | 250.25KB | FM |
| Acorn | 5¼in | single | 256 | 10 | 40 | 1 | 100 KB | FM |
| Acorn | 5¼in | single | 256 | 10 | 80 | 1 | 200 KB | FM |
| Acorn | 5¼in | double | 256 | 16 | 40 | 1 | 160 KB | MFM |
| Acorn | 5¼in | double | 256 | 16 | 80 | 1 | 320 KB | MFM |
| Acorn | 5¼in | double | 256 | 16 | 80 | 2 | 640 KB | MFM |
| Acorn | 3½ in (90mm) | double | 256 | 16 | 80 | 2 | 640 KB | MFM |
| Acorn | 3½ in (90mm) | double | 1024 | 5 | 80 | 2 | 800 KB | MFM |
| Acorn | 3½ in (90mm) | high | 1024 | 10 | 80 | 2 | 1600 KB | MFM |