JSI Tip 9225. What is the maximum file size, volume size, clusters per volume, and number of files per volume for the FAT16, FAT32, and NTFS file systems?
9225 » What is the maximum file size, volume size, clusters per volume, and number of files per volume for the FAT16, FAT32, and NTFS file systems? 05-Apr-05
The following table contains the subject limits:
| | FAT16 | FAT32 |
NTFS |
| Maximum File Size | 232 - 1 bytes | 232 - 1 bytes |
264 bytes - 1 KB (Theoretical)
244 bytes - 64 KB (Implementation) |
| Maximum Volume Size | 4 GB | 32 GB |
264 allocation units (Theoretical)
232 allocation units (Implementation) |
| Clusters per Volume | 65,535 Max. | 65,527 - 4,177,918 |
264 (Theoretical)
232 (Implementation) |
| Maximum Files per Volume | 216 | 222 (~4 million) |
232 - 1 |
NOTE: See default allocation unit sizes.
NOTE: The current practical limit for an NTFS volume is 2 terabytes (232 * 512 byte sectors) because the industry
standard partition table maximum is 232 sectors.
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