Costco run = groceries, right?

Then the pizza smell hits.

One slice turns into two.

But wait—how many calories are you actually eating?

Let’s find out before the next bite.

Costco Pizza at a Glance

✔ Calories per slice (pepperoni): 700-750
✔ Carbs: 80-85g
✔ Protein: 30-35g
✔ Fat: 28-32g
✔ Sodium: 1,500-1,600mg (65-70% of daily value)
✔ Size: 18-inch pizza, slices are huge (1/6 of the pie)

Now, let’s dig deeper.

Calories in a Slice of Costco Pizza: More Than You Think?

One slice of Costco’s pepperoni pizza packs 700-750 calories—that’s nearly a third of the average adult’s daily caloric needs (2,000-2,500 calories).

• Cheese pizza? Slightly less—around 650-700 calories.
• Combination pizza? Roughly 750-800 calories due to extra toppings.

Why so high? The slices are massive (each is 1/6 of an 18-inch pizza). Compared to a typical Domino’s slice (250-300 calories), Costco’s portion is 2-3 times larger.

 If you’re watching calories, split a slice with a friend or pair it with a salad.

Costco Pizza vs. Other Fast-Food Pizzas

How does Costco stack up against pizza giants like Domino’s, Pizza Hut, and Little Caesars?

Pizza Brand	Calories per Slice	Carbs (g)	Protein (g)	Sodium (mg)
Costco	700-750	80-85	30-35	1,500-1,600
Domino’s (Large Pepperoni)	290	35	12	680
Pizza Hut (Pan Pepperoni)	360	38	15	900
Little Caesars (Pepperoni)	280	30	12	670

Key Takeaway: Costco’s pizza is more calorie-dense but also delivers more protein per slice. However, the sodium content is sky-high—nearing the American Heart Association’s recommended daily limit (2,300mg).

 

 

 

Carbs, Protein & Fat: What’s Inside?

• Carbs (80-85g): Mostly from the thick, fluffy crust.
• Protein (30-35g): Thanks to loads of cheese and meat toppings.
• Fat (28-32g): A mix of saturated (from cheese) and unsaturated fats.

Is it a good post-workout meal? Surprisingly, yes—if you need quick calories and protein. But for most, it’s more of an occasional treat.

Sodium Alert: How Much Is Too Much?

One Costco pizza slice has 1,500-1,600mg sodium—that’s 65-70% of your daily limit.

• High sodium diets are linked to high blood pressure (NIH study source).
• The WHO recommends under 2,000mg/day for heart health.

Drink plenty of water and balance with low-sodium meals the rest of the day.

Fiber & Sugar: The Missing Pieces

• Fiber: Only 3-4g per slice (you need 25-30g/day).
• Sugar: Around 5-8g (mostly from tomato sauce).

Want more fiber? Add a side salad or veggies to your meal.

Dietary Restrictions: Keto, Gluten-Free & More

❌ Not keto-friendly (too many carbs).
❌ Not gluten-free (regular wheat crust).
✅ Vegetarian option: Cheese pizza (no meat).

Need alternatives? Costco’s rotisserie chicken or Caesar salad are lower-carb picks.

How to Balance Pizza in a Healthy Diet

You can enjoy Costco pizza without guilt—if you’re smart:

✔ Eat half a slice + a salad.
✔ Choose cheese over pepperoni to save ~50 calories.
✔ Pair with water (not soda) to cut extra sugar.
✔ Walk after eating—a 20-minute stroll helps digestion.

 

 

 

 

Smart Ways to Enjoy Costco Pizza

1. Share it! Split a slice with a friend.
2. Add veggies on top for extra fiber.
3. Balance your day—light breakfast if you know pizza’s for lunch.
4. Chew slowly—savoring helps prevent overeating.

Should You Eat Costco Pizza?

Yes—in moderation. It’s delicious, filling, and protein-packed, but the calories and sodium are no joke.

Best for:

• Occasional treats
• Post-workout refueling (if you need calories)
• Sharing with friends

Worst for:

• Daily eating
• Low-carb/keto diets
• Anyone watching sodium intake

Enjoy that cheesy slice—just don’t make it a habit! 

Sources & Further Reading

• NIH on Sodium & Health
• American Heart Association Sodium Guidelines
• USDA Food Database

Now, tell us—how do YOU enjoy Costco pizza? Share your tips below!