If you’ve ever wondered how many ways you can arrange a set of items where order matters, you need a Permutation (nPr) Calculator. Whether you’re solving probability problems, preparing for competitive exams, or working on statistical analysis, understanding nPr permutations is crucial. Our permutation calculator simplifies the process, giving you instant results with just two inputs: n (total items) and r (selected items).

For other math tools, explore our Math Calculators Collection or the Scientific Calculator for advanced functions.

What Is a Permutation? (nPr Meaning)

A permutation (nPr) refers to the number of ways to arrange r items from a larger set of n items where order matters.

Permutation vs. Combination

While permutations focus on ordered arrangements, combinations (nCr) ignore order. Learn more about combinatorial math with our Combination Calculator.

Permutation Formula: How to Calculate nPr

The nPr formula is:

nPr = n! / (n – r)!

Need to compute factorials? Use our Factorial Calculator for quick results.

When to Use a Permutation Calculator

Our nPr calculator is perfect for:
✔ Probability problems (e.g., lottery odds, card shuffling)
✔ Exam prep (GRE, GMAT, JEE, ACT)
✔ Data science – pair it with our Logarithm Calculator for statistical models.

How to Use Our Free Permutation Calculator

1. Enter n (total items)

2. Enter r (selected items)

3. Click “Calculate nPr”

For financial applications, try our Compound Interest Calculator.

FAQs About Permutations (nPr)

1. What does nPr mean in math?

nPr stands for ordered arrangements. For exponential growth, see our Exponent Calculator.

2. How is nPr different from nCr?

• nPr = Order matters (e.g., rankings).

• nCr = Order irrelevant (e.g., teams).

You May Also Like

1. Combination Calculator (nCr) – When order doesn’t matter.

2. Probability Calculator – Predict event likelihood.

3. Fraction Calculator – Simplify complex fractions.

Final Thoughts

Bookmark our Permutation Calculator for quick access! For daily life tools, try:

• Coffee-to-Water Ratio Calculator

• Dog Age Calculator