Math Tools

Q: What's the difference between Mean, Median, and Mode?

The 'Mean' is the traditional average (sum divided by count). The 'Median' is the exact middle number when the list is sorted from smallest to largest. The 'Mode' is the number that appears most frequently in your list.

Ratio Calculator, Average Calculator, Random Number Generator, and Prime Number Checker — all in one place.

Average / Mean / Median / Mode Calculator

Enter numbers (comma or space separated)

Ratio Simplifier & Solver

Solve for missing value (A : B = C : ?)

: ?

Random Number Generator

Minimum

Maximum

How Many?

Prime Number Checker

Enter a number

Primes up to N

Find all primes up to

What is this All-in-One Math Calculator?

Instead of bouncing between multiple websites, our All-in-One Math Calculator bundles the four most commonly used numerical utilities into a single, lightning-fast dashboard. Whether you are a student checking homework, a teacher generating random quiz constraints, or an accountant simplifying financial ratios, this tool provides instant answers without page reloads.

The Four Calculation Modes

Using the tabs at the top of the interface, you can instantly seamlessly switch between these vital tools:

Average, Mean, and Median: Paste a massive list of comma-separated numbers from an Excel spreadsheet. We will instantly calculate the total count, sum, mean (average), median (middle number), and mode (most frequent number).
Ratio Simplifier & Solver: Enter a ratio like 6:9, and we will simplify it to its lowest common denominator (2:3). Or, use the Ratio Solver to find the missing variable if you are resizing images or mixing chemicals (e.g. A:B = C:?).
Random Number Generator: Set a minimum limit, a maximum limit, and the total amount of numbers you need. Generate dozens of random integers instantly. Perfect for picking lottery/giveaway winners or game development testing.
Prime Number Checker: Type in any large integer to instantly verify if it is a prime number. If it is composite, we will even tell you its first divisible factor to help you with factoring math problems. You can also generate a list of all prime numbers up to a specific limit (like 10,000).

Why Use Browser-Based Calculation?

All of our mathematical algorithms execute entirely within your web browser using HTML5 Client-Side JavaScript. This means processing incredibly large datasets (like finding primes up to 10,000) happens in mere milliseconds because there is zero server-lag. Furthermore, any sensitive financial figures you paste into the Average terminal are 100% private and never leave your computer.

Frequently Asked Questions

What makes a number prime?

A prime number is a positive integer greater than 1 that has exactly two distinct divisors: 1 and itself. For example, 2, 3, 5, 7, and 11 are primes. Numbers like 4, 6, and 8 are "composite" because they can be divided by other numbers.

What's the difference between Mean, Median, and Mode?

The "Mean" is the traditional average (sum divided by count). The "Median" is the exact middle number when the list is sorted from smallest to largest. The "Mode" is the number that appears most frequently in your list.

Is this Random Number Generator truly random?

It uses the browser's built-in pseudo-random number generator algorithm. While it isn't cryptographically secure for things like banking encryption, it is perfectly random for games, giveaways, decisions, and statistical sampling.