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Permutations Calculator

MATH

Calculate P(n,r) — permutations of n things taken r at a time.

ℹ️ About Permutations Calculator

Permutations Calculator is a free online math tool from Tools Coaster. Calculate P(n,r) — permutations of n things taken r at a time. It is handy for permutations, npr, math tasks. It runs entirely in your browser — no sign-up, no installs, and nothing you enter ever leaves your device.

📖 How to Use Permutations Calculator

1
Enter your numbers
Type the value(s) or sequence you want to work with.
2
Run Permutations Calculator
The computation runs instantly with full precision.
3
Read the result
See the answer, and the working where the tool shows it.
4
Copy the output
Copy results for your homework, report, or spreadsheet.

💡 Examples

Example calculation
INPUT
Your number(s)
→
OUTPUT
Result from Permutations Calculator

🚀 Pro Tips

✓Combine with the statistics and converter tools for multi-step problems.
✓Bookmark it for quick reference during study sessions.
✓Check your inputs — math tools are exact, so wrong input gives a confidently wrong answer.
✓For very large or very small numbers, results may appear in scientific notation.
✓Use it to verify work you did by hand, not just to replace it.

❓ Frequently Asked Questions

What is Permutations Calculator?+
Calculate P(n,r) — permutations of n things taken r at a time. Permutations Calculator is free, works in your browser, and needs no sign-up.
Is it free?+
Yes — free and sign-up-free.
Does it work offline?+
After the page loads, the math runs on your device with no connection needed.
How precise are the answers?+
Computations use double-precision floating point, accurate to about 15 significant digits.
Does it show the steps?+
Where the method helps understanding, the tool displays the key working alongside the answer.

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