Programmer Calculator
Hex to Binary Converter
Type a hexadecimal number and get its binary form, plus decimal and octal.
- Decimal
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- Binary
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Click a bit to flip it.
How to convert hex to binary
Hex and binary line up neatly: every hex digit is exactly four bits. Replace each digit with its 4-bit group.
Digit table
0 = 0000, 1 = 0001, 2 = 0010, 3 = 0011, 4 = 0100, 5 = 0101, 6 = 0110, 7 = 0111, 8 = 1000, 9 = 1001, A = 1010, B = 1011, C = 1100, D = 1101, E = 1110, F = 1111.
Worked example
A3 is A (1010) followed by 3 (0011), so 10100011.
Other conversions
- Hex to decimal · Decimal to hex
- Binary to decimal · Decimal to binary
- Hex to binary · Binary to hex
- Full programmer calculator with bitwise operations, floats and timestamps