Math Calculators
Work out percentages, averages, and fractions instantly in your browser — clear results with the steps shown.
A surprising amount of daily math is just percentages, averages, and fractions: a discount at the checkout, the mean of a set of scores, adding two fractions in a recipe. None of it is hard, but it is exactly the kind of arithmetic that is easy to slip up on under time pressure.
These calculators give you a fast, correct answer and run entirely in your browser. Type your numbers and the result appears instantly — no sign-up, no waiting, and nothing you enter is sent anywhere.
Each tool is designed to be unambiguous: the percentage calculator separates the three common questions people actually mean by "percent", and the average calculator returns every common summary statistic at once so you do not have to run it several times.
Calculators in this category
Percentage Calculator
Find a percentage of a number, what percent one number is of another, and percentage increase or decrease.
Open calculator →Average Calculator
Calculate the mean, median, mode, range, sum, and count from any list of numbers instantly.
Open calculator →Fraction Calculator
Add, subtract, multiply, and divide two fractions — results are reduced to lowest terms automatically.
Open calculator →Frequently Asked Questions
What math calculators are available here?+
This hub covers the everyday math that comes up most often: percentages (of a number, change, and "what percent of"), summary statistics for a list of numbers (mean, median, mode, range), and fraction arithmetic with automatic reduction to lowest terms.
Do these calculators show the steps?+
Where it helps, yes — the Percentage Calculator labels each kind of calculation, the Average Calculator breaks out mean, median, mode and more, and the Fraction Calculator shows the reduced result. The aim is a clear answer you can trust, not just a number.
Is anything I enter sent to a server?+
No. All of the math runs in your browser with JavaScript. The numbers you type are never uploaded or stored, so the calculators work offline once the page has loaded and keep your inputs private.
How do you calculate the median and mode?+
The median is the middle value once the numbers are sorted (the average of the two middle values when the count is even). The mode is the value or values that appear most often — if every value is unique, there is no mode. The Average Calculator computes both automatically.