Math

Math calculators, equation tools, and number utilities.

Basics

Calculate percentages, increases, decreases, and more.

Add, subtract, multiply, and divide fractions.

Convert decimals into fractions instantly.

Convert fractions into decimals instantly.

Simplify ratios and calculate proportional values.

Find the average (mean) of a list of numbers.

Calculate median and mode for a list of numbers.

Calculate standard deviation for a list of numbers.

A simple scientific calculator for everyday math.

Solve basic linear equations step-by-step.

Solve quadratic equations using the quadratic formula.

Calculate area for common shapes quickly.

Calculate perimeter for common shapes quickly.

Calculate circle radius, diameter, area, and circumference.

Solve triangle sides and angles using common formulas.

Calculate volume for common 3D shapes.

Calculate and simplify aspect ratios for images and video.

Generate random numbers within a range instantly.

Roll virtual dice with custom sides and quantities.

Convert numbers into words (e.g., 145 → one hundred forty-five).