Hex to Decimal Calculator
Enter a hexadecimal number (0�9, A�F) to convert it to decimal.
How to Convert Hex to Decimal
Method: positional notation (base 16)
Multiply each hex digit by 16 raised to its position (right to left, starting at 0), then sum.
Example: 1F = 1×16¹ + 15×16&sup0; = 16 + 15 = 31
Quick reference
| Hex | Decimal | Binary |
|---|---|---|
| A | 10 | 1010 |
| 1F | 31 | 11111 |
| FF | 255 | 11111111 |
| 100 | 256 | 100000000 |
| FFFF | 65535 | 1111111111111111 |
