Check whether two words or phrases are anagrams of each other, and calculate how many unique ways each one's letters can be arranged.
Results
Calculated
Anagram Match
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Same letters, rearranged?
Letters Compared
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Characters used in each text
Arrangements of Text 1
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n! / repeated-letter factorials
Arrangements of Text 2
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n! / repeated-letter factorials
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How to use this calculator
Type a word or phrase into First word or phrase and another into Second word or phrase, then click Calculate. The tool tells you whether the two texts are anagrams of each other, and separately reports how many unique ways the letters of each text could be arranged. Click Clear to reset both fields to the example and start over.
The anagram check
Two texts are anagrams when they contain exactly the same letters the same number of times, just in a different order. By default, spaces and punctuation are stripped and both texts are lowercased before comparing (matching how anagram puzzles are normally judged) — toggle either option off if you want an exact, case-sensitive, space-sensitive comparison instead. Internally the calculator sorts each cleaned text's letters alphabetically and checks whether the two sorted strings are identical.
The arrangement count formula
For a text with n letters where distinct letters repeat n1, n2, ..., nk times, the number of unique orderings is:
Arrangements = n! / (n1! x n2! x ... x nk!)
This is the standard formula for permutations of a multiset. A word with no repeated letters simply has n! arrangements; every repeated letter divides that number down, since swapping two copies of the same letter produces an arrangement that looks identical.
Frequently Asked Questions
What makes two words anagrams of each other?
Two texts are anagrams when they contain exactly the same letters the same number of times, just in a different order. This calculator checks that by removing spaces and punctuation, lowercasing both texts, sorting each one's letters alphabetically, and comparing the sorted strings for an exact match.
How is the number of possible letter arrangements calculated?
The count of unique arrangements of a word's letters is n! (n factorial) divided by the factorial of each repeated letter's count: n! / (n1! x n2! x ... x nk!), where n is the total letter count and n1..nk are how many times each distinct letter appears. Repeated letters shrink the total because swapping two identical letters produces an arrangement that looks the same.
Why does the arrangement count get so large so fast?
Factorials grow extremely quickly: a 10-letter word with no repeated letters already has 10! = 3,628,800 possible orderings. Repeated letters bring the number back down (the factorial of each repeat count divides it out), which is why words with double or triple letters have far fewer unique arrangements than their length alone would suggest.
Do spaces, punctuation, and capitalization count as letters?
By default this calculator ignores spaces, punctuation, and letter case, which matches how anagram puzzles are traditionally judged (for example, "William Shakespeare" anagrams to phrases with different spacing and capitalization). You can switch either option off to compare the raw text exactly as typed, including spaces and case, as separate characters.
Practical Guide for Anagram Generator
Anagram Generator is most useful when the inputs reflect the situation you are actually planning around, not a best-case estimate. Treat the result as a decision aid: it gives you a structured way to compare assumptions, spot outliers, and decide what to verify next. For Other work, the most important review lens is baseline behavior, time cost, throughput, constraints, friction, and the decision threshold you care about.
Start with a baseline run using values you can defend. Then change one assumption at a time and watch which output moves the most. If one input dominates the result, spend your verification time there first. If several inputs have similar influence, use a conservative scenario and an optimistic scenario to create a practical range instead of relying on a single exact number.
Before acting on the result, compare the result with recent real-world data instead of ideal targets or one-off examples. This is especially important when the calculator supports a purchase, project plan, performance target, or operational decision. The calculator can make the math consistent, but the quality of the conclusion still depends on current data, clear units, and assumptions that match your real constraints.
When the output looks surprising, slow down and inspect each input in order. A small change in one high-leverage field can move the final number more than several low-leverage fields combined. For Anagram Generator, that means you should first confirm the value with the greatest scale, then confirm the value with the greatest uncertainty, then rerun the calculator with conservative and optimistic assumptions. This sequence turns the calculator from a single answer into a practical decision range.
Review Checklist
Confirm every input uses the unit and time period requested by the calculator.
Run a low, expected, and high scenario so the answer has a useful range.
Check whether rounding or a missing decimal place changes the decision.
Update the calculation after each meaningful workflow, schedule, cost, or usage change.