The first official Pi Day happened in 1988 in the heart of San Francisco, and this year we're celebrating with a contest! The Pi/e Day Contest is brought to you in part by Dexter Industries -- a company with a passion for robotics. All things pi or pie are eligible. So if you have a tech project that you’ve been wanting to build, or a recipe that you’d like to share, enter it for a chance to win prizes and robotics kits from Dexter Industries.

If you're submitting a tech project, you stand to win a GoPiGo Starter Kit for the Raspberry Pi, Arduberry for the Raspberry Pi and Arduino Shields, a Raspberry Pi Camera, and more. There will also be a special judges’ prize for the best Raspberry Pi Instructable. If you’d prefer to honor the mathematical constant with delicious baked goods, you could win a KitchenAid Gray Artisan Stand Mixer and a custom laser-etched rolling pin! Get crackin’ on those Instructables and show some appreciation for pi.

Want more contests? Check out Instructables' upcoming contests here!

The Pi/e Day Contest is closed.

Grand Prize


Grand Prize: Tech (1)

One Grand Prize winner for a tech project will receive:

Grand Prize: Pie (1)

One Grand Prize winner for the best Pie project will receive:

Judges' Prize: Raspberry Pi (1)

One Judges Prize winner for the best project made with a Raspberry Pi will receive:

First Prize (3)

Three first prize winners will receive:

Second Prize (5)

Five second prize winners will receive:

Runner Up (10)

Ten runner up prize winners will receive:

Write an Instructable

Create a new Instructable that fits the guidelines outlined in the contest description above. To be eligible, Instructables must be published between Feb 23, 2015 and Apr 20, 2015 (11:59pm PT).


Upon publishing your Instructable you'll see checkboxes for open contests. Select Pi/e Day Contest. If you have entries currently eligible for entry, it will also show up by clicking "Enter this Contest" on the right side of this page.


Entries are accepted by Instructables staff within one business day Monday - Friday. What matters is the submission time, not acceptance time.


A panel of judges made up of Instructables staff and respected members of the community rate the finalists. The averages of the ratings determine the winners.


When the winners are decided they will be notified and announced here on the contest page.