Instant conversion
Hex to Decimal Converter
Decimal value = sum of each hex digit value × 16^position, counting positions from right to left starting at 0.
1 decimal
Common hex to decimal conversions
| hex | decimal |
|---|---|
| 1 | 1 |
| A | 10 |
| F | 15 |
| 10 | 16 |
| 1F | 31 |
| 2A | 42 |
| 64 | 100 |
| 7F | 127 |
| 80 | 128 |
| FF | 255 |
| 100 | 256 |
| 3E8 | 1000 |
How this conversion works
Decimal value = sum of each hex digit value × 16^position, counting positions from right to left starting at 0.
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Frequently asked questions
How do you convert hex to decimal?
Evaluate each hexadecimal digit by its power of 16 and add the values.
What digits are valid in hexadecimal?
Hex uses 0-9 and A-F, where A=10 through F=15.
Is hex case-sensitive?
No. A-F and a-f have the same decimal values.