Donuts are easy to eat whole, but when they show up on a meeting table, a party platter, or a box of assorted treats, most people eat just a slice. The problem is that a sliced donut rarely comes with a nutrition label, so it is hard to know whether you are taking in 50 or 150 calories. This calculator does the slicing math for you — literally.
Enter the calories for a whole donut (pick a preset or type in the number from the package), choose how many slices you cut it into, and tell the tool how many slices you actually ate. You will instantly see the calories per slice, your total intake, and — if you want — how many minutes of walking or running it would take to burn that snack off, based on your body weight.
Perfect for calorie tracking, meal planning, office snacks, and anyone who wants to enjoy a donut without guessing.
🍩 Donut Calories Per Slice
Know exactly how many calories are in each slice — and what it takes to burn them off.
How to Use This Tool
This calculator is for anyone who shares donuts — office boxes, party platters, dessert boards, or just cutting one down to a smaller portion. Start by picking a quick-fill preset for a common donut type, or type in the exact calorie count from the nutrition label if you have the package handy. Then enter how many equal slices the donut was cut into; 8 is a sensible default, but sharing boards often use 4 to 6. Finally, enter how many slices you ate, plus your body weight if you want the burn-off estimates. Press Calculate to see calories per slice, your total intake, and the walking or running time needed to burn it off.
If you prefer weighing your food, use the donut calories per ounce calculator to convert a slice or whole donut weight directly into calories.
How the Calculation Works
The math is simple division: calories per slice = calories per whole donut ÷ number of slices. Multiply that by the slices you ate to get your personal total. A 240 kcal donut cut into 8 slices gives 30 kcal per slice; eating 3 slices means 90 kcal.
The burn-off estimate uses metabolic equivalents (MET) from the Compendium of Physical Activities. The formula is: kcal per minute = MET × 3.5 × body weight (kg) ÷ 200. Brisk walking at 3.5 mph has a MET of about 4.3, and running at 6 mph a MET of about 9.8. For a 70 kg person that works out to roughly 5.3 kcal/min walking and 12.0 kcal/min running. These are population averages, not a guarantee for your specific metabolism.
Reference: Calories in Popular Donuts
The table below lists typical whole-donut calorie values based on major chain nutrition information and USDA food data. Actual numbers depend on the recipe, size, and frying method.
| Donut type | Approx. kcal per donut | Typical weight |
|---|---|---|
| Glazed yeast donut | 240 | ~65 g |
| Chocolate frosted | 280 | ~70 g |
| Jelly / jam filled | 300 | ~85 g |
| Cake donut (plain) | 250 | ~60 g |
| Old fashioned | 230 | ~60 g |
| Cinnamon sugar | 260 | ~65 g |
| Powdered sugar | 210 | ~55 g |
| Cruller / twist | 220 | ~65 g |
For accurate branded-product data, check the package or search the USDA FoodData Central database.
Worked Examples
Example 1 — Glazed yeast donut, 8 slices. A 240 kcal glazed donut cut into 8 equal slices gives 30 kcal per slice. Have 2 slices and your snack is just 60 kcal. For a 70 kg person, that takes about 11 minutes of brisk walking to burn off.
Example 2 — Jelly-filled donut, 6 slices. A 300 kcal filled donut cut into 6 slices works out to 50 kcal per slice. If you eat 3 slices, your total is 150 kcal. Walking it off takes roughly 28 minutes; running at 6 mph takes about 12 minutes.
Example 3 — Large bakery donut, 10 slices. A hefty 500 kcal bakery donut cut into 10 slices gives 50 kcal per slice. Four slices equal 200 kcal — about 17 minutes of running or 38 minutes of walking for a 70 kg person. Slicing a big donut is a genuine portion-control trick.
Factors That Affect Calorie Counts
Donut calories vary more than most people expect. Yeast-raised donuts are lighter and absorb less oil; cake donuts are denser and soak up more fat during frying. Frosting and glaze add roughly 30–60 kcal, and a generous jam or custard filling can add another 40–80 kcal. Artisan bakery donuts can weigh 100 g or more — nearly double a standard chain donut.
Frequently Asked Questions
Q: Does slicing a donut change its calories? No. Cutting divides the total energy among smaller pieces — it doesn't create or destroy calories. The same total is there whether you eat it as one whole donut or six slices.
Q: Why do glazed donuts differ so much between chains? Recipe, dough weight, frying time, and glaze thickness all matter. Krispy Kreme's original glazed is about 190 kcal, while Dunkin's glazed donut is about 260 kcal — a large difference driven mostly by size and recipe.
Q: Are the walking and running estimates accurate? They are useful estimates based on MET values and your weight. Actual burn depends on pace, terrain, and personal metabolism, so expect results within roughly ±30%.
Q: Can I use this for donut holes or mini donuts? Yes. Enter the calorie count for one mini donut or donut hole as the whole-donut value and set slices per donut to 1. A typical glazed donut hole has about 50–60 kcal.