How many kilojoules are in pizza?
A takeaway supreme pizza runs about 954 kJ per 100 g, so a single slice of around 100 g is about 954 kJ (228 Cal) and two slices about 1,908 kJ (456 Cal). A whole large supreme, eight slices, lands near 7,600 kJ. Per gram a plain cheese-and-tomato Margherita is actually the highest here, at 1,194 kJ per 100 g.
Key numbers
- 954 kJ per 100 g (supreme, takeaway)
- About 954 kJ a slice (around 100 g)
- 1,908 kJ for two slices
- 7,632 kJ for a whole large
Pizza by type, per 100 g
| Item | Per 100 g | Protein | Sodium |
|---|---|---|---|
| Pizza, cheese & tomato (Margherita), commercial | 1,194 kJ | 16.2 g | 440 mg |
| Pizza, supreme, frozen, baked at home | 1,142 kJ | 14.0 g | 350 mg |
| Pizza, supreme, fast food chain | 1,044 kJ | 12.9 g | 550 mg |
| Pizza, ham & pineapple, frozen, baked | 961 kJ | 11.5 g | 468 mg |
| Pizza, supreme, takeaway style | 954 kJ | 13.0 g | 570 mg |
| Pizza, ham & pineapple, takeaway style | 939 kJ | 12.8 g | 632 mg |
| Pizza, vegetable, fast food chain | 863 kJ | 9.3 g | 389 mg |
| Pizza base alone, commercial | 1,109 kJ | 8.6 g | 390 mg |
What a real serve looks like (supreme, takeaway)
| How much | Energy | Calories | Protein |
|---|---|---|---|
| One slice (about 100 g) | 954 kJ | 228 Cal | ~13 g |
| Two slices (about 200 g) | 1,908 kJ | 456 Cal | ~26 g |
| Half a large (4 slices, about 400 g) | 3,816 kJ | 912 Cal | ~52 g |
| Whole large (8 slices, about 800 g) | 7,632 kJ | 1,824 Cal | ~104 g |
The topping decides less than most people think; the base and the cheese do most of the work. A plain commercial base is already 1,109 kJ per 100 g before anything goes on it, and a cheese-and-tomato Margherita at 1,194 kJ per 100 g is the highest per-gram number on this page, above a loaded supreme, because a supreme spreads the same dough under wetter vegetables. A thin chain vegetable pizza is the lightest at 863 kJ per 100 g.
Weight is what moves the total, not the label. Two slices of any pizza here land between about 1,700 and 2,400 kJ, so the honest lever is how many slices, not which pizza. Protein is respectable at 9 to 16 g per 100 g, and sodium is the number to watch: a takeaway ham-and-pineapple carries 632 mg per 100 g, close to a third of a day in two slices.
Stop guessing the number
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Common questions
How many kilojoules in a slice of pizza?
About 954 kJ (228 Cal) for a 100 g slice of takeaway supreme. A thinner chain slice can be lower; a thick frozen slice higher.
How many calories in a whole pizza?
A whole large supreme, about 800 g across eight slices, is roughly 7,632 kJ, or 1,824 Cal.
Which pizza has the fewest kilojoules?
Per 100 g a chain vegetable pizza at 863 kJ is the lightest here. A cheese-and-tomato Margherita is actually the highest at 1,194 kJ.
Is thin crust lower than thick crust?
Usually yes per slice, because there is less dough, and the base is the single biggest contributor to the number.
How do I log pizza accurately?
Count the slices and weigh one if you can, or scan the barcode on a frozen box. OzCal keeps Australian pizza brands with their published panels so the number matches the packet.
Keep reading
Citing this page. OzCal (2026). "Kilojoules in Pizza: Slice, Takeaway and Frozen Compared | OzCal". Retrieved from https://ozcal.com.au/kilojoules/pizza. Last updated 2026-10-07. Figures are per the serve stated in each row, converted at 1 Cal = 4.184 kJ. A plain-text version of this page is available at https://ozcal.com.au/kilojoules/pizza.md.