Pizza Slice Calories: Can You Eat Pizza and Still Lose Weight?
One regular slice of cheese pizza (about 107 g) has roughly 250-300 calories, or around 265 calories per 100 g. Thin-crust slices can drop to about 200 calories, while thick-crust, stuffed-crust or meat-loaded slices can climb to 350-400. Crust, cheese and toppings decide where your slice actually lands.
Pizza Slice Nutrition Facts (per 100 g)
| Calories | 266 kcal |
|---|---|
| Protein | 11 g |
| Carbohydrates | 33 g |
| Fat | 10 g |
| Fiber | 2.3 g |
| Sugar | 3.6 g |
| Sodium | 600 mg |
Typical reference values. Real dishes vary with ingredients, oil, portion size, and cooking method. Source: USDA-style reference values, pending dietitian verification.
Pizza Slice Calories by Serving Size
| Serving | Weight | Calories |
|---|---|---|
| 1 regular slice (107 g) | 107 g | ~280 kcal |
| 1 large slice (140 g) | 140 g | ~370 kcal |
| 2 regular slices (214 g) | 214 g | ~570 kcal |
| 3 regular slices (321 g) | 321 g | ~850 kcal |
Log Pizza Slice with SlimAI
Snap a photo, say it out loud, or search the database — then adjust the serving size so the entry matches your plate. Eat smarter, not stricter.
Quick Answer
A regular slice of cheese pizza has about 250-300 calories. Thin-crust slices can come in closer to 200, while thick-crust, stuffed-crust or meat-loaded slices can reach 350-400 calories each. Any site that gives you one exact number for "a slice of pizza" is guessing — the honest answer is a range.
You don't need to avoid pizza to lose weight. Portion size and daily balance matter far more than any single food: two slices tracked honestly fit into most calorie budgets, and knowing your real number is what makes that possible.
Why Pizza Slice Calories Vary
Two slices from two different pizzerias can differ by 150 calories or more, because almost every part of a pizza is a variable. The biggest drivers:
- Crust thickness
- Slice size
- Cheese quantity
- Meat toppings
- Extra oil
- Stuffed crust
- Sauces
- Restaurant vs homemade recipe
This is why a calorie app can't just assign one fixed number to "pizza" — it has to let you adjust the slice count, size and toppings so the log matches what was actually in the box.
Is Pizza Bad for Weight Loss?
Pizza is not automatically bad for weight loss. The real problem is usually a combination of things:
- Eating four to six slices in one sitting instead of one or two
- High-calorie extras like double cheese, pepperoni and sausage
- Late-night pizza landing on top of a full day of calories
- Sugary drinks, garlic bread and creamy dips served alongside
A slice or two, logged honestly, fits into most weight-loss days. A whole large pizza plus a soft drink usually does not — and knowing the difference before you order is most of the game.
How to Make Pizza Slice Lower in Calories
You don't have to give up pizza to cut its calorie cost. A few small choices change the math significantly:
- Choose thin crust over deep dish or pan
- Ask for light cheese
- Load up on vegetable toppings instead of cured meats
- Skip the stuffed crust
- Blot visible oil off the top with a napkin
- Decide your slice count before you start eating
- Pair pizza with a salad side instead of fries or garlic bread
None of these ruins the experience — each swap quietly saves 50-150 calories, and together they can halve the total for the meal.
How to Track Pizza Slice in SlimAI
- Open SlimAI.
- Search for pizza or scan your meal with the camera.
- Review the estimated calories and macros.
- Adjust the serving size to match how many slices you ate.
- Save it to your daily food log.
SlimAI helps you track real-life foods like pizza without making calorie tracking feel overly strict. Eat smarter, not stricter.
FAQ
Still Wondering About SlimAI
A regular slice of cheese pizza has about 250-300 calories. Thin-crust slices run closer to 200, while thick-crust or meat-loaded slices can reach 350-400. The honest answer is a range, because crust, cheese and toppings vary between pizzerias.
Yes. One or two slices at roughly 280-570 calories fit into most daily budgets, especially with a lighter breakfast and lunch around them. Weight loss depends on your overall daily balance, not on avoiding any single food.
Restaurants typically use more cheese, more oil in the dough and on top, richer sauces and larger slices than a home recipe. The same-size slice can easily carry 50-100 more calories from a pizzeria than from your own oven.
Generally yes. A thin-crust slice saves roughly 50-100 calories versus a regular or pan slice of the same diameter, because dough is a major calorie contributor. Toppings still matter — a loaded thin-crust slice can outweigh a plain regular one.
Yes. Point the camera at your plate and SlimAI estimates the slices and toppings, or search "pizza" and set the slice count and size. You can also log by voice — "two slices of pepperoni pizza" — and fine-tune the portion afterwards.
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