HEX to Decimal Converter
Convert an exact hexadecimal integer to decimal in your browser.
Enter at most 100,000 characters, including the optional sign, prefix, and separators.
A QUICK WALKTHROUGH
How to use this tool
- Enter a hexadecimal integer.
- Choose Convert to decimal.
- Copy the exact decimal result.
Hexadecimal integer
Leading and trailing whitespace is ignored. Negative values keep a minus sign; this is a mathematical integer conversion, not a fixed-width two’s-complement interpretation.
Enter at most 100,000 characters, including the optional sign, prefix, and separators.
Enter a hexadecimal integer with an optional leading + or - sign and one optional 0x prefix. Spaces, commas, and underscores may separate digits, but separators cannot lead, trail, or repeat.
GOOD TO KNOW
Common questions
Are large hexadecimal integers exact?
Yes. BigInt parses and converts the value without floating-point rounding, within the 100,000-character input limit.