How Many Slices in a Pizza?
(By Size Chart)
Standard slice counts for every pizza size from 6 inches to 18 inches, plus area per slice and how many people each size feeds.
A standard large (12-inch) pizza has 8 slices. Medium (10-inch): 6–8 slices. Extra-large (14-inch): 10 slices. Party size (16-inch): 12 slices. 18-inch: 12–14 slices. Small (8-inch): 6 slices. Personal (6-inch): 4–6 slices.
Slices by Size — At a Glance
Complete Pizza Slice Chart
This table covers every standard pizza size with slice count, total area, area per slice, and how many people it feeds (based on 3 slices per person average).
| Diameter | Common Name | Typical Slices | Total Area (sq in) | Area per Slice | People Fed |
|---|---|---|---|---|---|
| 6 inch | Personal | 4–6 slices | 28.3 sq in | ~5.7–7.1 sq in | 1 person |
| 8 inch | Small | 6 slices | 50.3 sq in | ~8.4 sq in | 1–2 people |
| 10 inch | Medium | 6–8 slices | 78.5 sq in | ~9.8–13.1 sq in | 2–3 people |
| 12 inch | Large | 8 slices | 113.1 sq in | ~14.1 sq in | 2–3 people |
| 14 inch | Extra-Large | 10 slices | 153.9 sq in | ~15.4 sq in | 3–4 people |
| 16 inch | Party Size | 12 slices | 201.1 sq in | ~16.8 sq in | 4–5 people |
| 18 inch | Extra Party | 12–14 slices | 254.5 sq in | ~18.2–21.2 sq in | 5–7 people |
Area calculated using A = π × r². Slice counts are industry standards — individual pizzerias may cut differently. People fed assumes 3 slices per person.
Slice Details by Pizza Size
6-Inch Pizza (Personal Size): 4–6 Slices
A 6-inch pizza has 28.3 square inches of surface area and is typically cut into 4–6 slices. This is a true personal pizza — enough for one person as a light meal or snack. Most often found at fast-casual chains and as a kids' option. Some restaurants don't cut personal pizzas at all and serve them as a whole round.
8-Inch Pizza (Small): 6 Slices
An 8-inch pizza has 50.3 square inches and is typically cut into 6 slices. It is a personal-to-small size that comfortably feeds one hungry person or two light eaters. The jump from 6-inch to 8-inch adds 77% more pizza by area — one of the best value upgrades in pizza sizes.
10-Inch Pizza (Medium): 6–8 Slices
A 10-inch pizza has 78.5 square inches and is cut into 6 or 8 slices depending on the restaurant. It is the classic medium size — big enough for two people sharing, or one very hungry person. At 6 slices, each piece is a generous size; at 8 slices, they are closer to a standard large pizza slice.
12-Inch Pizza (Large): 8 Slices
A 12-inch pizza has 113.1 square inches and is the standard large size at most pizza chains. It is almost universally cut into 8 slices and is the baseline used for most pizza planning calculations. A single 12-inch pizza feeds 2–3 people with average appetites (3 slices each with a small buffer).
14-Inch Pizza (Extra-Large): 10 Slices
A 14-inch pizza has 153.9 square inches — 36% more than a 12-inch — and is typically cut into 10 slices. This is the first size where the "extra-large" label usually applies. It feeds 3–4 people well and typically costs only 20–25% more than a large, making it excellent value.
16-Inch Pizza (Party Size): 12 Slices
A 16-inch pizza has 201.1 square inches and is typically cut into 12 slices. It is a substantial pizza that feeds 4–5 people with average appetites. At this size, the cost-per-square-inch is usually the best of any size available, making it the top choice for groups of 4 or more.
18-Inch Pizza (Extra Party): 12–14 Slices
An 18-inch pizza has 254.5 square inches and is cut into 12–14 slices. It is the largest size commonly available and can feed 5–7 people. Not every pizzeria offers this size — it is more common at specialty pizza restaurants and party-focused chains. When available, it provides the best value per square inch of all standard sizes.
Why Area Matters More Than Slice Count
The number of slices in a pizza tells you very little about how much food you are getting — what matters is the total area. A pizzeria can cut an 8-inch pizza into 8 tiny slices or 4 large ones, but the total amount of pizza is exactly the same either way.
When planning how much pizza to order, use total area as your primary metric. Each person typically eats about 40–50 square inches of pizza (roughly 3 average slices from a 12-inch pizza). Use our calculator to get an exact count based on your group size and appetite.