Pi is a mathematical constant representing the ratio of a circle's circumference to its diameter, and it's the most famous mathematical constant in the world of mathematics. Pi Day was first significantly celebrated in 1988 at the Exploratorium in San Francisco. Since then, millions of students and math enthusiasts have joined in on the fun. Celebrated on March 14, as 3, 1, and 4 are the most significant digits of pi, here are some ways to celebrate this special day.

Part 1

Step 1. Eat Pi-themed Food.

Step 1

Enjoying pi-themed food is the simplest and most fun way to celebrate this day. If you’re in school, everyone can bring a pi-themed dish in a special container, and if you’re celebrating with friends, you can cook a pi-themed meal together. Here are some creative ideas for pi-themed dishes:

  • Bake any type of pie. Try lemon, pumpkin, or apple.
  • Draw the pi symbol on various cookies, pies, and cupcakes. You can do this as a group activity.
  • Make a special pi pie just for this day.
  • Think of any food that starts with the sound "pi". Pizza? Pie? Piña colada?
  • Use shapes. Make cookies, pies, bread, or pancakes in the shape of pi.
  • Pi food doesn’t have to be limited to desserts. You could make a chicken pot pie.

Step 2. Create a Pi Atmosphere.

Step 2

Set the mood for Pi Day! Just as people love to wear costumes and sing holiday songs during the festive season, you can come up with your own ideas for Pi Day. Here are a few suggestions:

  • Wear a pi-themed t-shirt.
  • Add pi accessories. You could create pi jewelry, like a necklace with pi-shaped beads, a watch featuring the symbol, or anything else.
  • Make a temporary pi tattoo.
  • Stick pi-themed stickers around.
  • Change your computer and phone wallpaper to something related to pi.
  • Switch your internet browser to something pi-themed.

Step 3. Don’t Forget to Celebrate at 1:59 PM on Pi Day.

Step 3

Make sure to celebrate at 1:59 PM on Pi Day. Dedicate this minute to whatever you can think of. You can shout loudly or even start a countdown in advance.

  • For a special effect during the countdown, you could create a "pi drop" by dropping something off a balcony at that moment, like a piece of pie. You might even want to decorate that piece with glitter to make it look like a disco ball.
  • Alternatively, you can take a more serious approach and observe a moment of silence. Everyone can reflect on what pi means to them and consider what the world would be like without pi. If you’re in school, someone could announce the start of this minute over the loudspeaker.
  • If you’ve written a pi-themed song or created a pi dance, it would be a great minute to showcase them. There’s still some debate about the exact time for the celebration. While 1:59 is the most common reference, some argue that it should be celebrated at 3:09 PM.

Step 4. Turn Things into Pi.

Step 4

Transform everyday things into pi. This step is important for two reasons: first, to surprise those who have no idea what you’re talking about, and second, to have fun yourself. This way, you'll start to appreciate the number pi even more. Consider these two approaches:

  • Tell time using pi. Convert ordinary things into radians, like a clock. Instead of saying it’s three o’clock, say it’s 1/2 pi hours. Or instead of hours, you could describe the sun's position as radians and refer to it as the time.
  • Simply use 3.14 as a measure. Instead of being 31 years old, you might say you’re 9 pi years old. With this same approach, you could calculate the next pi birthday (and don’t forget to celebrate it!).

Step 5. Play Pi Games.

Step 5

Engage in pi games. Pi games are not only fun, but they also help you better understand the number pi and appreciate it more.

  • There are plenty of traditional games suitable for this day, like a pie-eating contest, throwing a pie in someone's face, or a piñata.
  • Answer math questions. Come to the celebration with 10 questions you can ask. They can relate to geometry, trigonometry, or other areas where pi is used.
  • Play pi versions of popular games, like "Who Wants to Be a Millionaire?".
  • Create a pi-themed treasure hunt.
  • Remember, Pi Day is also Albert Einstein's birthday. Play themed games or hold a competition around that.
  • Host a pi memorization contest. When someone loses, they get a pie thrown in their face. If you really want to show your love for pi, memorize as many digits as you can in advance.
  • Discuss different methods of calculating pi.
  • Write as many digits of pi on a board and try to find your name, birthday, code, or even pi itself among them.

Step 6. Tap into Your Creative Side to Celebrate.

Step 6

Use your creativity to celebrate this holiday. You don’t need to overthink it. Even if you’re not the most talented poet or writer in the world, you can still have a great time. You don’t have to create masterpieces; you can check out what others have come up with. Here are some creative ways to celebrate pi:

  • Watch the movie Life of Pi. The title character's name is actually "Pi," but people come to it thinking of pi.
  • Write a poem. Whether it’s a haiku or a standard poem doesn’t matter.
  • Compose a song about pi.
  • Write a short play and perform it.
  • Paint a pi-themed artwork.
  • Watch the film π. This dark movie about mathematics can be a bit intense, but it’s very interesting.
  • Listen to Kate Bush. This progressive singer has a song titled Pi on her 2005 album Aerial, where she sings the digits of pi up to the 137th, but for some reason skips the digits from 79 to 100.

Step 7. Think About Physical Pi.

Step 7

Consider physical expressions of pi. You might decorate your car. Here are a few more things to help you celebrate pi:

  • Run a distance of pi. Run 3.14 kilometers. You can organize a run with friends or colleagues.
  • Lie down in the shape of pi and take a photo. If you want, have two people hold the third one slightly to the side. Let the lightest person be on top.
  • Drive exactly 3.14 kilometers.
  • March in a circle to show your love for pi.

Step 8. Help Keep This Tradition Alive.

Step 8

Help keep this tradition going. Don’t let it be a one-time celebration—plan to celebrate it again and again. Set a date for next year and announce it in advance.

  • Talk about your plans for Pi Day next year. This will help revive enthusiasm.
  • Make notes after the celebration. What do you want to improve for next year?
  • Discuss this holiday in advance next year so even your skeptical friends will join in. You can even promote your party through emails to close friends or create an event on social media.