List of floppy disk formats
Known disk logical formats
Columns: 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 | Apple II | 5¼in | double | 256 | 13 | 35 | 1 | 113.75 KB | GCR | Apple II | 5¼in | double | 256 | 13 | 35 | 2 | 227.50 KB | GCR | Apple II | 5¼in | double | 256 | 16 | 35 | 1 | 140 KB | GCR | Apple II | 5¼in | double | 256 | 16 | 35 | 2 | 280 KB | GCR | Apple II | 3½ in (90mm) | double | 512 | Variable (8-12) | 80 | 1 | 400 KB | GCR | Apple II | 3½ in (90mm) | double | 512 | Variable (8-12) | 80 | 2 | 800 KB | GCR | Apple II | 3½ in (90mm) | high | 512 | 18 | 80 | 2 | 1440 KB | MFM | Apple Macintosh | 3½ in (90mm) | double | 512 | Variable (8-12) | 80 | 1 | 400 KB | GCR | Apple Macintosh | 3½ in (90mm) | double | 512 | Variable (8-12) | 80 | 2 | 800 KB | GCR | Apple Macintosh | 3½ in (90mm) | high | 512 | 18 | 80 | 2 | 1440 KB | MFM | Atari 8-bit | 5¼in | single | 128 | 18 | 40 | 1 | 90KB | FM | Atari 8-bit | 5¼in | enhanced | 128 | 26 | 40 | 1 | 127KB | MFM | Atari 8-bit | 5¼in | double | 256 | 18 | 40 | 1 | 180KB | MFM | Commodore (8-bit) | 5¼in | double | 256 | Variable (17-21) ZCAV | 35 | 1 | 170KB | GCR | Commodore (8-bit) | 5¼in | double | 256 | Variable (17-21) ZCAV | 35 | 2 | 340KB | GCR | Commodore (8-bit) | 5¼in | quad | 256 | Variable (23-29) ZCAV | 77 | 1 | 521KB | GCR | Commodore (8-bit) | 5¼in | quad | 256 | Variable (23-29) ZCAV | 77 | 2 | 1042KB | GCR | Commodore (8-bit) | 3½in (90mm) | double | 512 | 10 | 80 | 2 | 800KB | MFM | Commodore Amiga | 3½in (90mm) | double | 512 | 11 | 80 | 2 | 880KB | MFM | Commodore Amiga | 3½in (90mm) | high | 512 | 22 | 80 | 2 | 1760KB | MFM | IBM PC compatibles | 8in | single | 128 | 26 | 77 | 1 | 250.25KB | MFM | IBM PC compatibles | 8in | single | 128 | 26 | 77 | 2 | 500.5KB | MFM | IBM PC compatibles | 8in | double | 1024 | 8 | 77 | 1 | 616KB | MFM | IBM PC compatibles | 8in | double | 1024 | 8 | 77 | 2 | 1232KB | MFM | IBM PC compatibles | 5¼in | double | 512 | 8 | 40 | 1 | 160KB | MFM | IBM PC compatibles | 5¼in | double | 512 | 8 | 40 | 2 | 320KB | MFM | IBM PC compatibles | 5¼in | double | 512 | 9 | 40 | 1 | 180KB | MFM | 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 | 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 | NEC PC98 | 3½in (90mm) | high | 512 | 15 | 80 | 2 | 1200KB | MFM | NEC PC98 | 3½in (90mm) | high | 1024 | 8 | 77(80) | 2 | 1232(1280)KB | MFM | NEC PC98 | 3½in (90mm) | high | 512 | 18 | 80 | 2 | 1440KB | MFM | SHARP X68000 | 5¼in | high | 1024 | 8 | 77 | 2 | 1232KB | MFM | SHARP X68000 | 3½in (90mm) | high | 1024 | 8 | 77 | 2 | 1232KB | MFM