Fractions, percentages, statistics, geometry, and more for every math need.
Fraction calculator for addition, subtraction, multiplication, and division. Results simplified automatically.
Calculate area of geometric shapes: circle, rectangle, triangle, trapezoid, rhombus, and more.
Calculate volume of 3D geometric shapes: sphere, cube, cylinder, cone, pyramid, and more.
Free percent calculator: find X% of Y, what percent one number is of another, and percentage change.
Calculate mean, median, and mode for a set of numbers. Enter comma-separated values.
Calculate median, range, variance, and standard deviation for statistical data sets.
Calculate standard deviation and variance for population or sample. Includes step-by-step explanation.
Solve quadratic equations ax²+bx+c=0 using the quadratic formula. Shows step-by-step solution.
Calculate the percentage change between a starting and final value — increase, decrease and absolute difference.
Free reverse percentage calculator with clear inputs, an instant result, and a transparent formula.
Free ratio calculator with clear inputs, an instant result, and a transparent formula.
Free proportion calculator with clear inputs, an instant result, and a transparent formula.
Free weighted average calculator with clear inputs, an instant result, and a transparent formula.
Free percentage difference calculator with clear inputs, an instant result, and a transparent formula.
Calculate square area from one side length. Includes a fast calculation, clear result, and everyday use.
Calculate rectangle area from length and width. Includes a fast calculation, clear result, and everyday use.
Calculate triangle area from base and height. Includes a fast calculation, clear result, and everyday use.
Calculate circle area from radius. Includes a fast calculation, clear result, and everyday use.
Calculate circle circumference from radius. Includes a fast calculation, clear result, and everyday use.
Calculate box volume from length, width and height. Includes a fast calculation, clear result, and everyday use.
Calculate cylinder volume from radius and height. Includes a fast calculation, clear result, and everyday use.
Calculate sphere volume from radius. Includes a fast calculation, clear result, and everyday use.
Calculate cone volume from radius and height. Includes a fast calculation, clear result, and everyday use.
Calculate percent error between measured and true values.
Convert a part-to-whole ratio into a percent. Includes a fast calculation, clear result, and everyday use.
Convert a simple fraction to a percent. Includes a fast calculation, clear result, and everyday use.
Convert a decimal number to percent. Includes a fast calculation, clear result, and everyday use.
Convert a percent to decimal form. Includes a fast calculation, clear result, and everyday use.