Free Math & Conversion Tools

Calculate percentages, increases, decreases, and the rate of change between two numbers

Calculate weighted GPA and total credits from course credits and grades

Calculate a weighted course grade and estimate the score still needed on remaining work

Convert miles, feet, pounds, Fahrenheit, and common volume units

Calculate the mean, median, mode, and range of a set of numbers

Calculate population and sample standard deviations, variances, and coefficient of variation

Quickly sum, average, and count multiple numbers

Add, subtract, multiply, and divide fractions; simplify; convert between fractions and decimals

Simplify a ratio, solve an equivalent ratio, or split a total into proportional shares.

Calculate the area of circles, triangles, trapezoids, and other shapes, plus the volume of cubes, cylinders, and more

Estimate concrete volume, cubic yards, and ready-mix bags for a slab, footing, or column.

Calculate running, walking, and cycling pace from time, distance, or speed

Generate random numbers by range and count