Tiramisu calories are the reason this dessert has a reputation: about 360 calories for a typical restaurant slice, and about 280 per 100 g. That restaurant slice is the one you will actually be served, not the neat 100 g square on a nutrition label, so it is the number worth remembering when you order.
The good news is that tiramisu is not a mystery food. It is a short list of ingredients — mascarpone, eggs, sugar, ladyfingers, espresso and cocoa — and one of them does almost all of the damage. Once you know which one, the slice math, the comparisons and the lighter swap all fall into place.
All the figures in this article are typical values for a classic tiramisu recipe. Tiramisu varies by recipe — a café that is generous with the mascarpone or heavy with the sugar will land higher, and a lighter home version will land lower — so treat these as the honest middle, not a laboratory measurement.
Tiramisu Calories by Slice
Because tiramisu is sold by the slice and slices are not standardized, the per-100 g figure is the anchor and the slice figures follow from it. At about 280 kcal per 100 g, the math is simple: every 10 g is about 28 calories, so a slice’s weight decides its calories almost entirely.
| Slice | Weight | Calories |
| Small home slice | About 100 g | About 280 |
| Typical restaurant slice | About 130 g | About 360 |
| Large bakery slice | About 170 g | About 480 |
| Per 100 g (anchor) | 100 g | About 280 |
The restaurant slice is the one to plan around. At about 130 g it works out to roughly 364 calories before rounding, which is why the honest figure is about 360. The large bakery slice, at about 170 g, is roughly 476 before rounding — call it about 480. A small home slice cut at about 100 g is the full 280, with no rounding games needed.
For context, the same 100 g carries about 22 g of sugar and about 16 g of fat. That is a rich dessert by any measure, but the sugar is not the main story here. The fat is — and the fat comes almost entirely from one ingredient, which is where the next section starts.
Where the Calories Live
Mascarpone is the reason tiramisu is tiramisu — and the reason it is 280 calories per 100 g. The cheese runs about 420 kcal per 100 g, and it makes up roughly half of the finished dessert. Half a dessert at 420 kcal per 100 g already accounts for about 210 of the 280 calories before a single ladyfinger or spoonful of sugar is counted.
Mascarpone is so energy-dense because it is essentially solidified cream: very high in fat, and fat carries 9 calories per gram against 4 for protein or carbohydrate. The cream in a classic recipe is usually whipped with egg yolks and sugar, which adds a little more, but the mascarpone itself is doing the heavy lifting. Swap the mascarpone and you change the dessert; keep it and you accept the calories.
The ladyfingers, or savoiardi, look like the problem and mostly are not. Dry, they run about 390 kcal per 100 g, but they are light, airy biscuits, so a serving of tiramisu contains far less ladyfinger by weight than it does cream. They also soak up espresso, which costs almost nothing in calories — strong black coffee is near-zero — and the cocoa dusted on top is negligible too. The sponge is the vehicle; the cream is the cargo.
One factual note for the traditionalists: classic recipes add a splash of marsala wine, and many modern cafés skip it or use coffee only. Either way it is a small amount in a whole dish, and it does not move the calorie math in any meaningful way.
The sugar deserves its own line, because it is easy to miss. At about 22 g per 100 g, a restaurant slice carries roughly 29 g of sugar — about 7 teaspoons — before you have touched a drink or anything else on the table. That is over the commonly cited daily added-sugar guideline of 25 g for women, in a single dessert. The sugar is not why tiramisu is high in calories, but it is why the slice feels so indulgent.
Tiramisu vs Other Desserts
Put side by side per 100 g, tiramisu is not the worst dessert on the menu — it is just the one with the most variable serving size.
| Dessert | Calories per 100 g (typical) |
| Tiramisu | About 280 |
| New York cheesecake | About 320 |
| Carrot cake | About 410 |
Per 100 g, cheesecake runs about 40 calories higher than tiramisu, and carrot cake — with its oil-rich sponge and thick frosting — runs about 130 higher. But portion size is what hurts with tiramisu: a 130 g restaurant slice at about 360 already passes a 100 g piece of cheesecake at about 320, and a 170 g bakery slice at about 480 passes both. The dessert that looks lightest per bite can still be the heaviest thing on the table once the slice is cut.
That is also the fair way to judge it. Nobody eats 100 g of dessert because a chart says so; they eat the slice they are given. On that honest basis, tiramisu sits in the middle of the dessert menu — lighter per bite than cheesecake or carrot cake, but served in slices big enough to erase the advantage.
A Lighter Tiramisu
The lighter version of tiramisu is not a different dessert with the same name — it is the same dessert with one ingredient changed. Swap half the mascarpone for a Greek yogurt and light ricotta blend, and the finished tiramisu lands at roughly 190 kcal per 100 g. That figure is an estimate, because the exact result depends on the yogurt and ricotta you use, but the direction is reliable: about a third fewer calories than the classic 280.
The reason the swap works is the same reason the classic is so rich. Yogurt and ricotta are both far lighter than mascarpone, so replacing half the heaviest ingredient cuts a large share of the fat while the remaining mascarpone keeps the flavor unmistakably tiramisu. Swap all of it and you get a pleasant coffee dessert, but it no longer tastes like the real thing — half and half is the honest compromise.
Expect a slightly tangier, lighter result that still sets well if it is chilled properly — overnight in the fridge is best, just as with the classic. Keep the espresso soak generous and the cocoa dusting, because those cost almost nothing and carry most of the flavor. The sugar can come down a little too, but do it gradually; a tiramisu that tastes like a compromise will not satisfy anyone, and an unsatisfied dessert eater usually comes back for seconds.
If you are ordering rather than making it, the simplest lighter strategy needs no recipe at all: take the half slice. Ask for the smaller cut, or share one restaurant slice between two people and order a second coffee each. Eaten slowly with an unsweetened coffee, half a slice still delivers the full tiramisu experience for about 180 calories instead of 360. And if you are counting the day as a whole, a maintenance calories calculator will show you exactly how a 360-calorie slice — or a 180-calorie half — fits your budget.
Frequently Asked Questions
How many calories are in tiramisu?
About 280 per 100 g. A typical restaurant slice of about 130 g is about 360.
How many calories are in a slice of tiramisu?
A small home slice of about 100 g is about 280, a typical restaurant slice is about 360, and a large bakery slice of about 170 g is about 480.
Why is tiramisu so high in calories?
Mostly the mascarpone. It runs about 420 kcal per 100 g and makes up roughly half the dessert, with sugar, eggs and ladyfingers adding the rest.
Tiramisu or cheesecake – which has more calories?
Per 100 g, cheesecake is higher at about 320 against about 280 for tiramisu. But a large tiramisu slice can still out-calorie a small cheesecake slice, because portions differ.
Can tiramisu be made lighter?
Yes. Swapping half the mascarpone for Greek yogurt or a light ricotta blend brings it to roughly 190 kcal per 100 g, about a third fewer calories, and a half slice with coffee is the simplest café strategy.
So the honest summary is short: tiramisu calories run about 280 per 100 g and about 360 for the slice you will actually be served, the mascarpone is the lever that moves the number, and a lighter version — or simply a smaller slice — keeps the dessert firmly on the menu.
One last thought for anyone who loves tiramisu: the portion is the whole game. A small slice eaten slowly, with coffee and good company, delivers far more pleasure per calorie than a large slice eaten standing up in the kitchen — and it leaves room for the rest of the meal. Dessert is not a test to pass. Knowing that the restaurant slice is about 360 simply lets you choose it on purpose, enjoy it properly, and move on.
