Permutations Calculator - Calculate Permutations with Formula Online
Use our free Combination Calculator to calculate combinations quickly and accurately using the standard combination formula in maths. Perfect for students, exams, probability, and statistics with step-by-step solutions.
Items can be selected multiple times (n^r)
Calculation Results
Enter n and r values to calculate permutations without repetition
Related & Other Popular Calculators
You may find that you will want to start using our Permutations Calculator, which has been specifically created to assist you in determining how many different ways the order of items must be considered. If you are a Student as well as a Researcher or Practitioner, our calculator can give you Quick, Accurate, and Easy to understand results with a step-by-step explanation.
Using the Permutations Calculator, you can calculate permutations for both Repetition and Non-Repetition of the elements. Instead of taking many hours to perform the calculations manually, you can go through the entire process with complete confidence by applying the correct formula for permutations, which is available to you in a matter of seconds.

What Are Permutations?
Permutations are defined as the number of different ways that items can be arranged when the order matters. For example, if three different students are selected from five and placed in three different positions, then the result depends on the order in which the three are placed within those three positions. Permutations are used throughout Mathematics as well as Statistics, Computer Science, Data Analysis, and Probability.
Using a trusted calculator permutations tool removes calculation errors and saves valuable time.
How This Permutations Calculator Works
Our Permutations Calculator is built to be simple, intuitive, and educational:
The tool automatically applies the correct formula for permutations, displays the final answer, and explains each calculation step clearly.
This makes it more than just a permutation solver - it's a learning-friendly calculator.
Formula for Permutations
The standard formula for permutations without repetition is:
P(n, r) = n! / (n - r)!
Where:
When repetition is allowed, the formula changes to:
P(n, r) = nʳ
Our tool automatically applies the right formula based on your selection, making it a reliable permutation calculator without repetition as well as a permutation calculator with repetition.
Why Should You Trust Our Permutations Calculator?
There are many reasons you should trust the results from our Permutations Calculator.
Our tool has you covered whether you wish to have quick calculate permutations or a more thorough understanding of how permutations work.
Difference Between Permutation Calculator With Repetition and Without Repetition
Understanding when to use permute with repetitions or without repetitions is important:
Permutation Calculator Without Repetition
When you only want to select items once.
Example: Choosing 3 out of 5 Different Book Arrangements.
Permutation Calculator With Repetition
When items may be used more than once.
Example: Create a 3 Digit (PIN) by choosing 0-9.
The permutations feature on our Our calculator permutations makes it very easy to switch from one case to the other while giving accurate results every time.
Who Should Use This Permutations Calculator?
This Permutations Calculator is ideal for:
This permutations calculator is an online tool that will allow you to easily, quickly, and accurately calculate permutations the number of possible arrangements of items when the order matters, by using the appropriate permutation formulas, to obtain a final answer with minimal error.
FAQs
A Permutation Calculator is an online tool for calculating the number of arrangements of items when the order matters, using proper permutation formulas.
Yes, this calculator works as both a permutation calculator with repetition and a permutation calculator without repetition, depending on the selection you make.
The calculator uses the standard formula for permutations, which are: P(n, r) = n! / (n - r)! for the case of no repetition, and P(n, r) = nʳ for the case of repetition.
Definitely. This permutation solver will provide you with immediate and accurate results, along with step-by-step explanations, which can assist you during tests or while you practice.
Using an online calculator permutations eliminates the chance of clerical errors, provides you with faster results than working manually, and allows you to concentrate on understanding the principles behind permutations rather than performing complex mathematical calculations.
Yes - The Permutations Calculator has been designed for those who are new to Permutations, by providing clear written instructions that will help novice users understand how to compute permutations.