How Many Calories in a Costco Slice of Pizza?

Costco’s food court has a reputation for delivering hearty and borderline gigantic slices of pizza. If you’ve ever grabbed one, you probably noticed it feels more like a meal than a snack. That’s because each slice is massive—and, yes, pretty caloric. According to CalorieKing, a single 9.8-oz cheese pizza slice from Costco’s food court contains approximately 699 calories. Nutrition-tracking tools like Carb Manager and MyNetDiary corroborate that number, averaging 700 calories, with around 70 g carbs, 28 g fat, and 44 g protein per slice Carb Manager+1MyNetDiary+1.

Reddit Confirms: It’s Huge—and Hefty

Longtime Costco fans on Reddit have also posted their findings. One popular thread from nearly a decade ago noted:

“Costco slice of Pizza is 760 calories! … A whole pie had 4000+.” Reddit

Their experience—a slice weighed about 5 oz and represented 1/6 of a pizza—lines up with the calorie estimates (ranging from 700 to 760 calories), given slight variations in slice size or toppings.

Pepperoni vs. Cheese: A Slight Difference

For pepperoni pizza, nutritional data (from EatThisMuch.com) indicates a single slice contains about 620 calories, with a macro split of 44% carbs, 35% fat, and 22% protein thescottishsun.co.uk+9eatthismuch.com+9brickandbrews.com+9. That’s a bit lower than the cheese-only version, likely owing to differences in cheese quantity or slice size.


Putting It Into Perspective

Let’s break it down:

  • Cheese slice (~9.8 oz) → ~700 calories
  • Pepperoni slice (~8.8 oz) → ~620 calories

These are far from light. In comparison, a typical restaurant pizza slice weighs around 4–6 oz with fewer calories (about 300–400). Costco’s slices pack a meal’s worth of energy in just one serving.

What Does 700 Calories Feel Like?

At nearly 700 calories, that slice hits roughly a third of an average adult’s standard 2,000-calorie daily intake—not including toppings, sides, or a drink. Considering it delivers 44 g of protein, it’s somewhat balanced, but the 1370 mg of sodium is significant—nearly 60% of your recommended daily limit CalorieKing+1brickandbrews.com+1.

Tips for Healthier Consumption

If you love Costco pizza but want to eat smarter:

  1. Share a slice: Each slice is enough for two people—split it and pair with a salad or veggies.
  2. Track nutrition: Use apps like MyNetDiary or CalorieKing to log macros, accounting also for sides or drinks.
  3. Choose toppings wisely: Pepperoni adds fewer calories per slice than extra cheese—and fewer calories overall.
  4. Balance your plate: Add fiber and nutrients—fruit or salad can complement the heaviness of the slice.

Final Takeaway

A single Costco food court pizza slice is around 700 calories, delivering a heavy dose of protein, fat, carbs, and sodium. While undeniably satisfying, it’s a dense slice that’s best shared or balanced with lighter foods. Knowing this helps you enjoy the convenience and taste while making informed dietary choices.

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