Numbers & Conversions
Free number and conversion calculators: binary, hexadecimal, roman numerals, scientific notation, number sequences, random numbers, factorization and GCD/LCM.
Binary Calculator
Convert numbers between binary, decimal, octal, and hexadecimal systems. Perform arithmetic operations in binary.
Hex Calculator
Convert hexadecimal colors, numbers between bases, and visualize RGB values. Essential tool for developers and designers.
Roman Numeral Converter
Convert between Arabic and Roman numerals. Learn the Roman numeral system and its rules.
Scientific Notation Calculator
Convert numbers to scientific notation and perform operations. Ideal for working with very large or very small numbers.
Big Number Calculator
Work with extremely large numbers. Display names, notations, and visual comparisons.
Number Sequence Calculator
Generate and analyze number sequences: arithmetic, geometric, Fibonacci, primes, and more. Find patterns and formulas.
Random Number Generator
Generate random numbers, roll dice, draw lottery numbers. Customize ranges and quantity of numbers.
Prime Factorization Calculator
Break down numbers into their prime factors. Visualize the factor tree and learn about prime numbers.
Factor Calculator
Find all factors (divisors) of a number. Visualize factor pairs and number properties.
Common Factor Calculator
Calculate Greatest Common Divisor (GCD) and Least Common Multiple (LCM) of two or more numbers. Visualize common factors.
Number Base Conversions
Convert numbers between binary, decimal, octal and hexadecimal systems. Perform bitwise operations and visualize representations in different number bases.
Factors & Prime Numbers
Find factors of any number, perform prime factorization with factor trees, calculate GCD and LCM. Essential tools for mathematics and programming.
Sequences & Generators
Generate arithmetic, geometric and Fibonacci sequences. Create random numbers with full control over ranges, distributions and exclusion options.