Pi Pizzeria in Penn Quarter is among the restaurants offering specials for Pi Day. (Bill O'Leary/The Washington Post)

You probably know the drill by now. Tuesday is Pi Day. It's March 14, or 3.14 — the numerical value of pi. The word sounds like “pie,” and hence a silly excuse for a holiday was born. Bellyache all you want, but since most of us eat pizza and pie anyway, you might as well enjoy a deal at least once a year. Here are some specials at Washington-area bars and restaurants, available Tuesday unless otherwise indicated:

Bayou Bakery: Slices of select pies for $3.14. 1515 N. Courthouse Rd., Arlington; 901 Pennsylvania Ave. SE.

Blaze Pizza: Build-your-own pizzas for $3.14 all day. 7419 Baltimore Ave., College Park; 14708 Baltimore Ave., Laurel.

Dangerously Delicious Pies: While supplies last, diners get a free slice of sweet pie from 6 to 9 p.m. 1339 H St. NE​.

Declaration: During happy hour (4 to 7 p.m.), one-topping pizzas will be $5. The Brooklyn-style pizza will be 50 percent off the entire night. 804 V St. NW.

Pi Pizzeria: On Monday, it's happy hour all day. Also, if you buy one large pizza, you get a second for $3.14. Purchase a draft beer, and you'll receive a free pint glass. At the Penn Quarter location from 3 to 4 p.m., there's a 15 and younger pi memorization contest. On Tuesday, the $3.14 second pizza deal continues. Schlafly Pi Common beer is $3.14 all day. And if March 14 is your birthday, you get a free large pizza. From 4 to 5:30 p.m. in Penn Quarter, it's the adult pi memorization contest. 910 F St. NW; 7137 Wisconsin Ave., Bethesda.

Pizzeria Paradiso: Available now, there's a special “savory apple pie” pizza ($14 small/$20 large) paired with Apple Pi mead from B. Nektar ($10 for a 9-ounce pour). On Pi Day, the pairing will be discounted by $3.14, and happy hour drafts will be $3.14 from 5 to 7 p.m. at the bar. 3282 M St. NW; 2003 P St. NW; 124 King St., Alexandria.

Timber Pizza Co.: Beer and wine will be $3.14 with the purchase of a pizza. 809 Upshur St. NW.

Villa Italian Kitchen: If you download a coupon from the website, you get a whole Neapolitan cheese pizza for $3.14. Various locations.

Whisked!: From 6 to 10 p.m., the bakery holds a party at Colony Club with pie, scoops from Ice Cream Jubilee, a raffle and music. For $12.50, you get a slice of pie and a drink, with 20 percent of proceeds going to the ACLU. 3118 Georgia Ave. NW.

Read more:

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