How Many Calories Are In Costco Pizza Slice? | Quick Facts Guide

Costco’s pizza slices are huge, so the count per piece runs high. You’re eating the equivalent of two regular slices cut from an 18‑inch pie. That’s why the range you see online varies a bit from store to store and day to day. Cheese lands near 700 calories, pepperoni near the low‑to‑mid 600s, and the loaded slice sits in between.

How Many Calories Are In A Costco Pizza Slice: By Topping

The number depends on topping load and slice weight. Across major nutrition databases that track chain items, a typical Costco cheese slice comes in close to 700 calories, pepperoni around 620 to 650, and the combo around 680 to 760. These values reflect the giant cut you get when you order a single slice at the counter.

Costco Pizza Slice Calories At A Glance

Slice Type	Calories (Per Slice)	Approx. Weight
Cheese	699	9.8 oz (278 g)
Pepperoni	620	8.9 oz (252 g)
Combo	679	10.7 oz (303 g)

Each pie is hand‑made, and small changes add up: how heavy the cheese run was, how the dough proofed that day, and how the slicer lined up the guide. Most shops cut whole pies into twelve, while the slices sold individually are the size of two of those, which is why the single slice looks massive. If your piece is a bit lighter or heavier than these averages, the calories shift with it.

One slice can be a full meal on its own. Plan the rest of the day around it: more vegetables, lean protein, and water. Once you’ve set your daily calorie needs, you can decide whether that slice stands alone or pairs with a side salad.

How Costco Slice Calories Compare To Everyday Pizza

Regular‑size slices from common delivery pies tend to run smaller in weight, so their calories sit lower per slice. That doesn’t mean they’re lighter by square inch; it’s mostly a portion story. Put simply, the Costco cut is big, and big pieces carry more energy.

What About Macros And Sodium?

A cheese slice often lands near a third of daily protein for many adults, a large share of carbs, and a similar share of fat. Sodium can be substantial, too. If you watch salt, plan the rest of your meals with lower‑sodium picks. The Dietary Guidelines recommend limiting added sugars, saturated fat, and sodium across the day; if you want a refresher, the Dietary Guidelines for Americans lay out those basics. For general label context, the FDA’s 2,000‑calorie guide helps you size meals without guesswork.

How Many Calories Are In One Whole Costco Pizza?

When you buy a whole pie, it’s typically cut into twelve pieces. A single giant slice equals two of those smaller cuts. If you multiply the per‑slice estimates by six, you get a ballpark for the whole pizza. That’s a lot for one sitting, so share with a group or plan leftovers.

Slice Vs Whole: Estimated Calories

Type	Per Slice	Whole Pie (~6 Giant Slices)
Cheese	699	~4,200
Pepperoni	620	~3,720
Combo	679	~4,080

Ways To Trim Calories Without Losing The Pizza Fix

• Ask for a regular slice and skip extra cheese at the counter.
• Blot the oil puddles with a napkin while the slice is still hot.
• Split a slice with a friend, then add a side salad for bulk.
• Go with water or a zero‑cal drink instead of a sugary soda.
• Pace the rest of the day with higher‑fiber choices and lean protein so the meal still fits your target.

Simple Ordering Tips That Help

Let the whole pie feed a crowd, or stick to a single slice as a full meal. If you’re buying a pie to take home, ask for an extra cut so the pieces are smaller. That little move makes sharing easier and slows the pace of eating.

Costco Pizza Nutrition Numbers We Used

The slice values above line up with large nutrition databases that follow chain items and report typical weights in ounces and grams. Cheese sits near 699, pepperoni near 620, and the loaded slice near the high 600s. These are practical yardsticks, not lab results for your specific piece. Kitchens vary. Oven time, cheese spread, and how toppings land can swing the total up or down by a small margin.

Practical Portion Math Without A Scale

Think in chunks. A giant slice near 700 calories fits neatly into a 2,000‑calorie day when the rest of the meals stay lighter. Keep breakfast and lunch near 500 to 600 each, then add produce and a small snack. That way, pizza night still sits inside your plan.

What Changes The Count The Most

Three things move the number: slice weight, cheese amount, and topping load. Bake time also affects moisture loss, so a longer bake can nudge the weight down a bit, even with the same dough ball. That’s why two slices that look alike can still differ by a hundred calories or so.

Sample Day That Welcomes A Slice

Breakfast: Greek yogurt, berries, and oats. Lunch: a chicken salad with beans and greens. Dinner: one Costco slice with a side salad and sparkling water. Snack: an apple and a handful of almonds. The day feels full, fiber is solid, and you still get pizza.

DIY Costco‑Style, A Little Lighter

If you cook at home, use a thin crust, stretch the dough wider for more surface area, and go easy on cheese. Choose part‑skim mozzarella, turkey pepperoni, and lots of mushrooms and peppers. Bake hot on a steel so the crust crisps fast and doesn’t soak up extra oil.

Soda, Salad, And Side Moves

A large sugary drink can add two hundred calories or more on its own. Water, diet soda, or unsweetened tea keeps the meal anchored. Caesar salad tastes great with pizza, but dressing is dense, so ask for it on the side and dip the fork, not the leaves. That small swap saves plenty across a year.

Small Appetite, Big Slice

You don’t need to white‑knuckle it. Ask for a box, eat until the hunger fades, then take the rest home. Reheat later in a skillet to keep the bottom crisp. Cold pizza is fun, too. Either way, you control the total because you control the portion.

Kid And Family Notes

Feeding a group? Count one giant slice per hungry teen, then fill in with fruit or salad. For younger kids, the double‑cut slices from a whole pie work better. Those smaller pieces are easier to handle and make sharing simple.

Common Misconceptions

“Pepperoni always has more calories.” Not here. The cheese slice can edge it out because the cheese load and weight are high. “Combo is always safer.” It’s tasty, but it swings the most since toppings vary. Some days it lands near cheese, other days it’s closer to pepperoni. “The slice is the same as any delivery slice.” The size is the difference; you’re eating two regular cuts worth of food.

How To Build A Day Around A Slice

Front‑load vegetables and lean protein at breakfast and lunch if you plan a slice for dinner. Keep snacks simple. At dinner, eat the crust you enjoy most and leave the rest if you’re full. Drink water. Then move on—one meal won’t make or break your week.

Smart Pairings That Keep You Satisfied

Good add‑ons: a side salad with dressing on the side, a cup of fruit, or a sparkling water. Skip the extra cheese shaker and creamy dips if you want to save energy. Season with chili flakes for extra zip at no cost.

Travel Days And Tailgates

Warehouse trips often stack with errands. If the slice is your meal, treat it like one: eat slowly, sit if you can, and stop when the bite that follows doesn’t taste as good as the one before it. That little cue keeps portions in line without math.

Final Take

A single Costco slice is a complete meal for many people. Budget the rest of the day around it, aim for balance, and enjoy it hot. Want a step‑by‑step walkthrough? Try our calorie deficit guide.