Unit Conversion Calculators

Decimal to Hexadecimal Calculator

Convert a base-10 decimal number to base-16 hexadecimal notation.

Hexadecimal —

About the Decimal to Hexadecimal Calculator

Hexadecimal (base-16) uses sixteen symbols — 0 through 9 and A through F — to represent numbers. It's widely used in programming, memory addresses and color codes because it maps cleanly to binary (each hex digit represents exactly 4 bits).

Formula: Repeatedly divide the decimal number by 16 and record the remainders (converting remainders 10-15 to A-F), then read them in reverse order.

For example, decimal 255 converts to hexadecimal FF — the maximum value of a single byte.