Pi to 18 decimal places

Before we get to the value of Pi to 18 decimal places, note that Pi (π) starts with "3." followed by an endless number of digits or decimals. In other words, Pi is an infinite decimal and an irrational number. Furthermore, we define 18 decimal places as 18 digits after the decimal point.

Therefore, we take "Pi to 18 decimal places" to mean that you want to see "3." followed by 18 digits of Pi.

The first 18 decimal places of Pi contains 0 0s, 2 1s, 2 2s, 3 3s, 1 4s, 3 5s, 1 6s, 1 7s, 2 8s, and 3 9s. Below is "3 dot" followed by the first 18 decimals of Pi.

3 . 1 4 1 5 9 2 6 5 3 5 8 9 7 9 3 2 3 8

What is the 18th digit of Pi? The last digit of the number above is the 18th decimal of Pi. As you can see, the 18th decimal of Pi is 8. However, Pi starts with 3 which is also a digit. Thus, if you start at 3, then the eighteenth digit of Pi is 3.

First 18 digits of Pi: The Pi number above gives you "3." followed by 18 digits after the decimal point. If you want to just memorize, learn or see the first 18 digits of Pi including the 3, then you can omit the last digit.

Pi Decimal Places
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Pi to 19 decimal places
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