**What Letter Is Pi In The Greek Alphabet** (March) Details! >> The article details the famous mathematical constant and what does it mean in the world of Physics.

The **United States** celebrated Pi day on March 14, and this did pick the curiosity in people to know **What Letter Is Pi In The Greek Alphabet**. Do you know that the letter Pi is a Greek alphabet that marks its place as a mathematical constant pi? Well, National Pi day is honored in different ways in different traditions, including cutting pizza to eating fruit pies.

Here we deem to provide our readers a general sneak peek into Pi day and answer other details about it, like which letter is it in Greek? So please do not forget to read till the end, and get the glimpse of all the related aspects.

**What is a Pi and What Letter Is Pi In The Greek Alphabet****?**

Before we go about unleashing the mystery, to be precise, let us glimpse what a Pi day is and why it is celebrated?

**First, a Pi can be defined as a ratio of a circle’s circumference divided by its diameter**. As the ratio tends to remain the same for all circles, pi’s value is attached to it. The day was first discovered in 1988 when physicist Larry Shaw organized it at the San Francisco Exploratorium.

Now coming to *What Letter Is Pi In The Greek Alphabet*, it is named after the sixteenth letter π, which is also the symbol of the mathematical constant.

**When is Pi Day?**

The Pi day is annually celebrated on March 14, which also commemorates the physics genius Albert Einstein. Every year, a lookalike contest is also held at Princeton, New Jersey in the **United States** on Pi day.

Besides, there is another interesting fact that is connected to Pi day. Along with the birthday of the famous scientist Albert Einstein, it also is the day when another renowned scientist, theoretical physicist Stephen Hawking died. He died at the age of 74 on Pi day, in 2018.

As we know **What Letter Is Pi In The Greek Alphabet**, let us now look into Pi’s value.

**Expressing the Value of Pi**

It is almost **impossible** to express the exact value of Pi. Because it is an infinite decimal that has no end, thus it is typically expressed as 3.14. Besides, what adds to the fascination is the symbol’s ubiquity, which dates back to 1900 BC.

As per experts, Pi’s value is even beyond “universal” as it is not limited to only one universe but any conceivable universe.

**Conclusion – A Mathematical Constant that Defines the Universe**

Thus, answering to **What Letter Is Pi In The Greek Alphabet**, which marks the sixteenth alphabet, we can conclude that the mathematical constant can find its place in almost every aspect of the universe. From the spirals of human DNA strands to the eye’s pupil, the sun’s disk, and concentric rings, its existence is beyond the known universes.

What more do you know about the mathematical constant and Greek alphabet Pi? Please do share your thoughts and knowledge with us by leaving it in the comments box below.