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About the Hex Calculator
The Hex Calculator converts numbers between hexadecimal, decimal, and binary, and it performs addition, subtraction, multiplication, and division in base 16. You enter a value, pick the operation or target base, and get the result instantly in all supported formats.
The tool applies standard positional notation, where each hex digit holds a value from 0 to 15 and represents a power of 16. Arithmetic follows the same carry rules as decimal math, except borrowing and carrying happen at 16. Inputs are hex strings with digits 0 to 9 and letters A to F. Tip: watch the letters, because mixing up B and 8 produces wrong results.
- Enter your first hex value using digits 0 to 9 and letters A to F.
- Select the conversion base or the arithmetic operation you need.
- Read the result and copy it in the format you want.