Enter a value in any field to see it converted to the other bases.
Enter number in any base (binary, decimal, hex, octal). All conversions show instantly as you type.
Essential for programmers and students. Convert between computing number systems without memorizing tables.
Binary (base 2), Decimal (base 10), Hexadecimal (base 16), Octal (base 8).
Memory addresses, color codes (#FF5733), compact binary representation.
Yes, handles well for typical computing use.
Computers use on/off (1/0) states; understanding binary helps programming, networking, hardware.
Humans use decimal (base 10): digits 0-9, position values are powers of 10. Computers use binary (base 2): digits 0-1, position values are powers of 2. Hexadecimal (base 16) is a shorthand for binary: digits 0-9 plus letters A-F, position values are powers of 16. One hex digit equals exactly four binary digits. So the binary 11111111 (8 digits) is FF in hex (2 digits) — much easier to read.
Hex is everywhere in programming: memory addresses (0x7FFE3A2B), colors (#FF5733 is RGB 255, 87, 51), character codes (0x41 is ASCII 'A'), bit flags (0x04 means the third bit), hash values (MD5 hashes are 32 hex chars), and MAC addresses (00:1A:2B:3C:4D:5E). Every developer needs to read hex occasionally, and converting to binary reveals the underlying bit patterns.
To convert binary to hex: group the binary digits in fours from the right (pad with leading zeros if needed), then convert each group. 11010110 → 1101 0110 → D6. To convert hex to decimal: multiply each digit by its position value (16^0, 16^1, 16^2, etc.) and sum. D6 = 13×16 + 6 = 208. To convert decimal to hex: divide by 16 repeatedly, noting remainders. 208 / 16 = 13 remainder 0 → 13 is D, so D6. Our converter does all this for you.
Convert numbers instantly between binary, decimal, and hexadecimal with the Toolzie Number Base Converter. Essential for programming, electronics, computer science students, and anyone working with low-level data.
Hex is used extensively in programming, web colours (e.g. #FF5733), memory addresses, and colour codes in design tools.
Enter your binary number (e.g. 1010) in the binary field and the decimal value (10) will appear instantly.
The converter handles standard unsigned integers. For signed/two's complement, manual adjustment is needed.
It supports numbers up to 64-bit integers (up to 18,446,744,073,709,551,615 in decimal).