Permutations (nPr): 12 n n; 2 r r

Specific conversion page with reference context, calculator, and nearby values.

Author

Prof. Hans Muller

Math editorial contributor

German renewable energy engineer at TU Munich, pioneering grid-scale hydrogen storage solutions

Reviewed by

Prof. Kenji Tanaka

Math content reviewer

Japanese materials scientist at Kyoto University, known for breakthroughs in sustainable polymer research

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

Table of Contents

  1. Value details
  2. Calculator
  3. Nearby reference values
  4. FAQs
  5. Methodology and review
  6. Navigation and related conversions

12 n n; 2 r r converts to

132 Permutation Count

Use this as a quick reference for Permutations (nPr).

Value Details

Input: 12 n n; 2 r r

Output: 132 Permutation Count

Browse all reference values for Permutations (nPr)

Permutations (nPr)

Calculate the number of ordered permutations using nPr for integers with 0 ≤ r ≤ n ≤ 18.

Calculated Result

Nearby Reference Values

Permutations (nPr) values near 12 n n; 2 r r
ScenarionPr
10 n n; 1 r r10 Permutation Count
10 n n; 2 r r90 Permutation Count
10 n n; 3 r r720 Permutation Count
10 n n; 4 r r5,040 Permutation Count
10 n n; 5 r r30,240 Permutation Count
10 n n; 6 r r151,200 Permutation Count
10 n n; 9 r r3,628,800 Permutation Count
10 n n; 10 r r3,628,800 Permutation Count
12 n n; 0 r r1 Permutation Count
12 n n; 1 r r12 Permutation Count
12 n n; 2 r r132 Permutation Count
12 n n; 3 r r1,320 Permutation Count
12 n n; 4 r r11,880 Permutation Count
12 n n; 5 r r95,040 Permutation Count
12 n n; 6 r r665,280 Permutation Count
12 n n; 11 r r479,001,600 Permutation Count
12 n n; 12 r r479,001,600 Permutation Count
15 n n; 0 r r1 Permutation Count
15 n n; 1 r r15 Permutation Count
15 n n; 2 r r210 Permutation Count
15 n n; 3 r r2,730 Permutation Count

Frequently Asked Questions

Common questions about Permutations (nPr), formulas, and expected usage.

What does the Permutations (nPr) calculator do?

It helps with counting ordered arrangements in combinatorics, scheduling, and coding interviews.

What formula does the Permutations (nPr) calculator use?

nPr = n! / (n-r)! for ordered selections.

What inputs are valid?

n and r must be integers with 0 ≤ r ≤ n ≤ 18.

When would I use this?

counting ordered arrangements in combinatorics, scheduling, and coding interviews

Methodology and Review

This page is generated from the same conversion definition used by the main calculator page, which keeps the calculator, reference table rows, and FAQ schema aligned.

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Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.