Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal bases.

Value

From base

Binary

11111111

Octal

377

Decimal

255

Hex

About Number Base Converter

Convert numbers between binary, octal, decimal and hexadecimal bases.

This tool runs entirely in your browser. Your data never leaves your device — nothing is uploaded to any server.

Check if a number is prime and find its prime factors if it is not.

Calculate the greatest common divisor and least common multiple of two numbers.

Add, subtract, multiply and divide fractions and get simplified results.

Solve quadratic equations ax² + bx + c = 0 and find real roots.

Calculate mean, median, mode, standard deviation, variance and more from a dataset.

Calculate the factorial of any number up to 1000 with full precision.