| 0 to 11 | Direct map to file blocks 0 to 11. | 
| 12 | Indirect block: (file blocks 12 to ($block_size/ 4) + 11, or 12 to 1035 if 4KiB blocks) 
| Indirect Block Offset | Where It Points | 
|---|
 | 0 to ($block_size/ 4) | Direct map to ($block_size/ 4) blocks (1024 if 4KiB blocks) |  | 
| 13 | Double-indirect block: (file blocks $block_size/4 + 12 to ($block_size/ 4) ^ 2 + ($block_size/ 4) + 11, or 1036 to 1049611 if 4KiB blocks) 
| Double Indirect Block Offset | Where It Points | 
|---|
 | 0 to ($block_size/ 4) | Map to ($block_size/ 4) indirect blocks (1024 if 4KiB blocks) 
| Indirect Block Offset | Where It Points | 
|---|
 | 0 to ($block_size/ 4) | Direct map to ($block_size/ 4) blocks (1024 if 4KiB blocks) |  |  | 
| 14 | Triple-indirect block: (file blocks ($block_size/ 4) ^ 2 + ($block_size/ 4) + 12 to ($block_size/ 4) ^ 3 + ($block_size/ 4) ^ 2 + ($block_size/ 4) + 12, or 1049612 to 1074791436 if 4KiB blocks) 
| Triple Indirect Block Offset | Where It Points | 
|---|
 | 0 to ($block_size/ 4) | Map to ($block_size/ 4) double indirect blocks (1024 if 4KiB blocks) 
| Double Indirect Block Offset | Where It Points | 
|---|
 | 0 to ($block_size/ 4) | Map to ($block_size/ 4) indirect blocks (1024 if 4KiB blocks) 
| Indirect Block Offset | Where It Points | 
|---|
 | 0 to ($block_size/ 4) | Direct map to ($block_size/ 4) blocks (1024 if 4KiB blocks) |  |  |  |