Enter a hexadecimal number to convert it to decimal instantly. Handy for Class 11–12 computer science — see the side-by-side reference table below, or open the full converter for all four bases at once.
base 16 → base 10 · Open the full converter →
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A number written in hexadecimal (base 16) is rewritten in decimal (base 10). For example, FF in hexadecimal equals 255 in decimal. The full converter at /tools/ shows binary, octal, decimal and hexadecimal together.
| Hexadecimal | Decimal |
|---|---|
| A | 10 |
| F | 15 |
| 10 | 16 |
| 2A | 42 |
| 64 | 100 |
| FF | 255 |
| 100 | 256 |
| FFF | 4095 |
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