Hex Calculator
A hex calculator performs arithmetic directly on hexadecimal (base-16) values — addition, subtraction, multiplication, and bitwise AND/OR/XOR — and shows the result in both hex and decimal. Hexadecimal is used throughout programming for memory addresses, color codes, and byte values because each hex digit maps cleanly to exactly four binary bits, making it far more compact to read and write than the equivalent binary string while still converting to it trivially.
How it works
- Enter two hexadecimal values (with or without a 0x prefix).
- Choose an operation: add, subtract, multiply, AND, OR, or XOR.
- Read the result in both hex and decimal.
Formula BigInt arithmetic on 0x-parsed values; bitwise ops via native &, |, ^
Frequently asked questions
Do I need to type 0x before each value?
No — plain hex digits like 2A work the same as 0x2A.
Can I subtract a larger value from a smaller one?
No — this calculator only handles non-negative results; subtraction that would go negative returns no result.
What do AND, OR, and XOR do?
They operate bit by bit: AND keeps a bit only if both inputs have it set, OR keeps it if either does, and XOR keeps it only if exactly one does — common in low-level programming and flag manipulation.
Is there a limit to how large the numbers can be?
No practical limit — this uses arbitrary-precision BigInt arithmetic, not fixed 32/64-bit integers.
How is this different from the decimal-to-binary tool?
That tool converts one number between bases; this one performs arithmetic between two hex numbers.