All Tools

Calculate area, perimeter, volume, and surface area for 2D and 3D shapes. Supports circles, rectangles, triangles, cubes, spheres, cylinders, and more.

Convert between decimals, fractions, and percentages. Automatically simplifies fractions and supports mixed numbers.

Calculate the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) of two or more numbers. View prime factorization, factors, and step-by-step solutions.

Check if numbers are prime, factorize into prime factors, generate prime lists, and find primes in any range.

Calculate exponents, nth roots, and powers of 2 instantly. Features quick presets, calculation history, and a handy reference table.

Convert between standard numbers and scientific notation instantly. Supports large and small numbers with multiple output formats.

Convert numbers between Binary, Octal, Decimal, and Hexadecimal. Essential tool for programmers, students, and anyone working with different number systems.

Convert any number to words instantly. Supports 52 languages, decimals, negative numbers, and currency conversion with multiple display formats.

Convert between Roman numerals and Arabic numbers instantly. Supports single conversion, batch processing, and range generation from 1 to 3999.

Discover random countries and cities around the world. Get geographic details, view on map, and learn about new places instantly.

Generate random dates, times, or both within a specified range. Perfect for scheduling, testing, or making random time-based decisions.

Can't decide what to eat? Let this random food picker choose for you! Pick from cuisines worldwide or create your own custom food list.