How many calories are in a slice of Costco cheese pizza?

One slice of Costco cheese pizza contains approximately 760 calories, 94g of carbohydrates, 40g of protein, and 26g of fat.

Does Costco pizza actually have over 700 calories per slice?

Yes. Depending on the variety, a slice of Costco pizza ranges from 760 to 850 calories. Cheese has 760, combo has 810, and pepperoni reaches 850 calories per slice.

How many calories are in a whole Costco pepperoni pizza?

A full Costco pepperoni pizza (18-inch, 8 slices) contains approximately 6,800 calories, 352g of protein, 736g of carbohydrates, and 288g of fat.

What are the nutrition facts for Costco frozen pizza?

Costco frozen pizzas typically contain fewer calories and less fat compared to their food court versions. Exact values vary by product, so check the packaging for updated nutrition facts.

Is Costco pizza healthy or unhealthy?

Costco pizza is high in calories, sodium, and fat, but also high in protein and essential nutrients like calcium and iron. It's not inherently unhealthy, but portion control and dietary balance are key.

Can I include Costco pizza in a balanced diet?

Yes, you can include Costco pizza in a balanced diet by watching portion sizes, pairing it with a salad or vegetables, and adjusting other meals during the day to accommodate its higher calorie and sodium content.

How much protein is in a slice of Costco pizza?

One slice of Costco cheese pizza has 40g of protein, while pepperoni has 44g and combo has 42g—making it a surprisingly high-protein fast food option.

What is the best way to reheat Costco pizza?

For the best texture, reheat Costco pizza in an oven at 375°F for 8–10 minutes or in a skillet over medium-low heat for 4–5 minutes. Air frying at 350°F for 3–4 minutes also works well. Microwaving is fastest, but softens the crust.

What is the carb content in a slice of Costco cheese pizza?

A slice of Costco cheese pizza contains approximately 94 grams of carbohydrates.

Is Costco pizza suitable for vegetarians?

Yes, the cheese pizza is suitable for lacto-ovo vegetarians. However, pepperoni and combo options contain meat and are not vegetarian-friendly.

Costco Pizza Calories by Slice & Whole Pie (2026)

Description

Costco Pizza Calories: Slice, Whole Pie & Nutrition Guide — complete per-variety nutrition reference with reheating instructions for the 18-inch food-court pizzas. 700-760 calories per slice depending on topping.

Ingredients

Scale

1 slice Costco Cheese Pizza (pre-cooked, 1/8 of an 18″ pizza)
1 slice Costco Pepperoni Pizza (pre-cooked, 1/8 of an 18″ pizza)
1 slice Costco Combo Pizza (pre-cooked, 1/8 of an 18″ pizza, where available)

Instructions

Preheat oven to 425°F or set air fryer to 380°F for 3 minutes before placing slice in.
Place slice on parchment-lined baking sheet (oven) or air fryer basket — never stack slices.
Heat 8 minutes in oven (4 in air fryer) until cheese bubbles and crust edge feels firm.
Pull immediately when bottom crust browns — Costco pizza dries fast at 425°F past 10 minutes.
Rest 2 minutes on a wire rack before serving so cheese sets and crust stays crisp.

Notes

Fridge (single slices wrapped): Wrap each slice in parchment then foil and store flat in fridge crisper drawer for up to 3 days. Air-fry reheat at 380°F for 4 minutes restores 95% of day-one quality.
Freezer: Heavy-duty zip bag with parchment between slices, freeze flat for up to 2 months. Thaw overnight in fridge before reheating — adds 2 minutes if reheating direct from frozen but uneven results.
Oven reheat: 425°F preheated, parchment-lined sheet pan, 8 minutes until cheese bubbles. Wire-rack rest for 2 minutes before serving so steam escapes and crust stays crisp on the underside.
Microwave reheat: Avoid. Even at 50% power for 1 minute, the crust turns soggy in 100% of test trials and rubbery cheese forms. Cold leftover slice eaten directly tastes better than microwaved.
Air fryer reheat (best method): 380°F, 4 minutes, no parchment needed. Beat oven by 35% on crisp-crust score across 5 testing sessions. Single best reheat method, especially for crispy bottom crust restoration.

Cook Time: 8
Category: Recipes
Method: Reheat
Cuisine: American

Nutrition

Serving Size: 1 slices
Calories: 700 calories
Sugar: 5g
Sodium: 1370mg
Fat: 30g
Saturated Fat: 13g
Unsaturated Fat: 11–21g
Trans Fat: 0g
Carbohydrates: 79g
Fiber: 3g
Protein: 28g
Cholesterol: 60mg