A standard slice of pumpkin pie is about 320 calories — the lightest of the classic holiday pies, and lighter than a slice of apple pie or cake. The number moves with the slice: a thin cut is about 220, a big wedge is about 380, and a dollop of whipped cream adds about 50. Use our calorie calculator to see what 320 calories means against your daily target — this guide breaks down the crust, the filling, the Costco slice, and the lighter versions that keep the flavor.
One slice — one-eighth of a 9-inch pie, about 133 g — is 323 calories according to the USDA, with about 25 g of sugar and 13 g of fat. A thin slice is about 220, a large wedge about 380, and adding whipped cream takes a standard slice to about 370. A crustless slice, which is really a baked pumpkin custard, drops to about 180 to 200.
Check My Daily TargetPumpkin pie is about 243 calories per 100 g, so the slice you cut decides the number more than the recipe does. The standard slice — one-eighth of a 9-inch pie, about 133 g — is 323 calories. Cut the pie into twelve instead of eight and each slice is about 220. Cut it into six fat wedges and each one is about 380. The arithmetic is simple because the pie is uniform: every extra 30 g of pie is about 73 calories, so a slice that looks a third bigger really is a third bigger. Bakery and restaurant slices are usually cut thicker than the home standard, which is why a commercial slice can reach 400 to 500 calories even before the cream goes on.
| Slice | Weight | Calories |
|---|---|---|
| Thin slice (1/16 of a 9-inch pie) | ~90 g | ~220 |
| Standard slice (1/8 of a 9-inch pie) | 133 g | ~320 |
| Large slice (1/6 of a 9-inch pie) | ~155 g | ~380 |
| Standard slice + whipped cream | 133 g + cream | ~370 |
| Crustless slice (pumpkin custard) | ~130 g | ~180–200 |
| Costco slice (1/12 of a 12-inch pie) | ~133 g | ~320 |
| Whole 9-inch pie, 8 slices | ~1,065 g | ~2,580 |
The whole-pie row is worth remembering: eight slices at 323 calories is 2,584 calories for the pie, so a pie that disappears between six people at the table is really six servings of about 430 calories each, not six servings of 320. The crust is the expensive part — about 120 to 150 calories of the slice, nearly half the total — while the pumpkin filling is about 170 to 200. That is why the crustless version saves so much: skipping the crust removes 120 to 150 calories and leaves the part that actually tastes like pumpkin. And the sugar load is real but modest for a dessert: about 25 g per slice, or roughly 6 teaspoons, which is less than a can of soda and about the same as a glazed donut.
On the dessert table, pumpkin pie is the best value in the pie case. A slice of apple pie is about 296 calories — close, but with less fiber and less vitamin A. Cherry pie is about 325, essentially tied. Pecan pie is the outlier at about 503 to 509 calories a slice, because the filling is mostly sugar and butter with a nut crust on top — more than 50% heavier than pumpkin for the same size slice. Against cake, pumpkin pie wins clearly: a slice of frosted chocolate cake is 350 to 450 calories, and a slice of New York cheesecake is 400 to 700. Pumpkin's advantage is the filling itself: pumpkin puree is mostly water and fiber with very few calories, so the pie carries real nutrients — about 5,370 IU of vitamin A per 100 g, the highest of any common pie, plus about 2.7 g of fiber per 100 g — inside a dessert that still reads as a treat.
The easiest saving is the slice itself: cut twelve slices instead of eight and every serving drops from 320 to about 220, a 100-calorie saving that nobody at the table notices. The next saving is the cream: a generous dollop of whipped cream is about 50 calories, so skipping it or using a single tablespoon saves most of that. The biggest structural saving is the crust — bake the filling in ramekins as a crustless custard and the slice drops to about 180 to 200 calories, with the same spiced pumpkin flavor and the same vitamin A. A graham cracker crust is lighter than a butter pastry crust, saving roughly 30 to 40 calories a slice, and using evaporated skim milk instead of sweetened condensed milk in a homemade filling trims the sugar without changing the texture much. And at the store, remember the Costco math: their 12-inch pie is 58 ounces and cuts into twelve slices of about 320 calories each, so the whole pie is roughly 3,900 calories — a thin sixteenth of it, about 250 calories, is the easy way to have the pie and the rest of the meal too.
Our calorie calculator sets your daily target — then you can see whether 320 calories for dessert fits or crowds out dinner.
Calculate My Daily TargetWritten by the Live Fitness Check editorial team · Reviewed against our calculator methodology · Last updated November 2026
Disclaimer: This guide is for general information only and is not medical advice. Calorie figures are standard averages and published USDA values, and vary by brand, recipe, and serving size. Talk to your doctor or a registered dietitian before starting a weight-loss or restricted diet.
