Number base converter
Hexadecimal to Decimal Converter
Convert hexadecimal numbers to decimal for programming, computer science, and digital logic.
Base converter
Hexadecimal to Decimal
Convert whole numbers between decimal, binary, hexadecimal, and octal.
Hexadecimal input can use digits 0-9 and letters A-F.
Result
10
Hexadecimal (base 16) to Decimal (base 10)
How Hexadecimal to Decimal Conversion Works
Hexadecimal uses base 16, while Decimal uses base 10. The converter first reads the input value in base 16, then writes the same whole number in base 10.
This tool supports whole numbers within JavaScript's safe integer range. Binary output is grouped in blocks of four digits so long results are easier to read.
Example Conversions
| Hexadecimal | Decimal |
|---|---|
| A | 10 |
| F | 15 |
| FF | 255 |
| 1A3 | 419 |
FAQ
What does Hexadecimal to Decimal Converter do?
It converts a whole number written in Hexadecimal (base 16) into Decimal (base 10).
Is Hexadecimal to Decimal conversion exact?
Yes. Number base conversion rewrites the same whole number in another base, so the value itself does not change.
Can I use spaces in binary or hex input?
Yes. Spaces are ignored, so grouped binary like 1010 1101 is accepted.
Is this converter private?
Yes. The conversion runs locally in your browser and does not need a database or paid API.