Only positive integers allowed
Decimal uses digits 0-9 and is the standard number system for everyday mathematics, business calculations, and human-readable numbers.
Hexadecimal uses digits 0-9 and letters A-F, providing a compact representation of binary data used extensively in programming and web development.
Essential for CSS color codes, HTML color values, and understanding how web browsers process color information in hexadecimal format.
Critical for memory addresses, pointer values, debugging output, and representing binary data in a human-readable format.
Important for graphic design, digital art, and any application requiring precise color specification and manipulation.
Used for file permissions, memory dumps, network analysis, and understanding low-level system operations.
Input your decimal number using digits 0-9 in the converter field.
System repeatedly divides by 16 and converts remainders to hex digits (0-9, A-F).
Copy your hexadecimal result for use in web development or programming.
Divide the decimal number by 16 repeatedly and collect the remainders. Convert remainders 10-15 to A-F. The hex result is the remainders read in reverse order. For example, 255 ÷ 16 = 15 remainder 15(F), 15 ÷ 16 = 0 remainder 15(F), giving hex FF.
Hexadecimal is compact and human-readable for representing binary data. It's used for memory addresses, color codes, byte values, and debugging because one hex digit represents exactly 4 binary digits.
A=10, B=11, C=12, D=13, E=14, F=15. These letters represent values greater than 9 in the base-16 system, allowing hex to use single characters for all values 0-15.
Our converter handles decimal numbers up to JavaScript's maximum safe integer (about 9 quadrillion), which covers all practical computing applications and memory addressing needs.
Yes, decimal to hexadecimal conversion is mathematically exact with no precision loss. Both systems represent the same integer values, just in different bases (10 vs 16).