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# What is the value of pi?

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### Quick Answer

The approximate value of pi, which is the ratio of a circle’s circumference to its diameter, is 3.14159265, according to Collins World English Dictionary. It is impossible to represent its exact value fully and accurately since it is an irrational number with an unending, non-repeating decimal.

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### Full Answer

It is convenient at times to use a fractional approximation for pi. Though 22/7 can be used, it is only good to two decimal places. The fraction 355/113 is a significantly more accurate alternative. A mnemonic device for recalling pi’s value is to memorize the sentence, “May I have a large container of butter today?” The number of letters in each word can be counted to obtain 3.14159265.

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