How many calories are in zucchini bread?
One slice of zucchini bread weighs 40 g and carries 122 calories. Per 100 g the loaf runs 306 calories, which puts it much closer to cake than to sandwich bread. Two slices with coffee come to 245, and a thick homemade cut of 60 g reaches 184 all by itself.
You'd need to walk about 24 minutes to burn the 122 calories in one slice (40 g).
How long does it take to burn off zucchini bread?
One slice (40 g) is 122 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:
lb
| Activity | Time to burn 122 kcal |
|---|---|
| Walking, brisk | 24 min |
| Cycling, moderate | 15 min |
| Swimming, moderate | 17 min |
| Jogging | 14 min |
| Weight training, moderate | 27 min |
Times are for a 155 lb adult at a steady pace; change the weight to see yours. The amount is set to the portion in the text (40 g); change it to what you actually ate. BodyPal works this out from your steps automatically.
On this page
- Zucchini bread quick facts
- US servings, from one ounce to two slices
- Zucchini muffins, pumpkin bread and the chocolate version
- Sugar, not fiber, is the row to watch
- How does zucchini bread compare?
- Most popular zucchini bread brands
- FAQ
Zucchini bread quick facts
The numbers here come from the USDA survey record FNDDS 2707851, "Bread, zucchini". It is the record for the thing a person actually holds: a baked quick bread, oil and sugar and shredded zucchini already in it, cooled and cut. It also carries a household measure of one slice at 40 g, which packaged loaves rarely match — their label servings run anywhere from 35 g to 61 g.
| Nutrient | Per 100 g | Per 1 slice (40 g) | % Daily Value |
|---|---|---|---|
| Calories | 306 | 122 | — |
| Total fat | 13.14 g | 5.3 g | 7% |
| Saturated fat | 2.17 g | 0.9 g | 4% |
| Carbohydrate | 42.64 g | 17.1 g | 6% |
| Dietary fiber | 0.9 g | 0.4 g | 1% |
| Total sugars | 22.72 g | 9.1 g | — |
| Protein | 5.05 g | 2.0 g | 4% |
| Sodium | 290 mg | 116 mg | 5% |
% Daily Value is based on a 2,000-calorie diet.
Verified nutrition data
Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →
Two rows are missing on purpose. Added sugars and trans fat are not published for this FNDDS record, so there is no honest way to print them — and total sugars have no Daily Value of their own, which is why that cell stays empty. Cholesterol and potassium are in the record: 43 mg and 164 mg per 100 g, or 17 mg and 66 mg in a slice, 6% and 1% of the Daily Value. The FDA's Daily Value reference is the yardstick for every percentage on this page.
US servings, from one ounce to two slices
| Serving | Weight | Calories |
|---|---|---|
| 1 oz | 28 g | 86 kcal |
| One slice, USDA measure | 40 g | 122 kcal |
| One thick homemade slice | 60 g | 184 kcal |
| Two slices | 80 g | 245 kcal |
| Per 100 g | 100 g | 306 kcal |
Only the 40 g slice and the 100 g line come straight from USDA. The ounce, the thick slice and the two-slice row are our own arithmetic from the USDA 100 g figure, not USDA servings. USDA does list one more tiny measure, a single cubic inch at 6.6 g and 20 calories, which is useful mostly for tasting a corner while the loaf cools.
The gap between those rows is the real story. A loaf baked in a standard 9x5 pan and cut generously gives 60 g slices, not 40 g ones, and that is a 50% jump — 184 instead of 122 — from nothing but a wider knife stroke. If you log zucchini bread often, weigh one slice once. After that you will know whether your loaf yields twelve slices or eighteen, and every entry afterward is honest.
Packaged loaves push the same number higher. In the USDA Branded database, zucchini breads run from 306 to 386 calories per 100 g: an Evergreen loaf sits at 306, exactly on the survey record, while Bakehouse Bread Company is 380 and a chocolate zucchini bread from Outrageous Baking is 386. Label servings vary just as much — 35 g for a one-eighth loaf at 107 calories, 61 g for a bakery-style slice at 230.
Zucchini muffins, pumpkin bread and the chocolate version
| Version | Per 100 g | Typical piece | Calories |
|---|---|---|---|
| Zucchini bread, USDA record | 306 kcal | one slice, 40 g | 122 kcal |
| Zucchini muffin | 306 kcal | one muffin, 57 g | 174 kcal |
| Pumpkin bread | 305 kcal | one slice, 40 g | 122 kcal |
| Carrot muffin | 314 kcal | one muffin, 57 g | 179 kcal |
| Irish soda bread | 301 kcal | one slice, 40 g | 120 kcal |
| Cornbread muffin | 305 kcal | one muffin, 57 g | 174 kcal |
| Chocolate zucchini bread, packaged | 386 kcal | 2 oz piece, 57 g | 220 kcal |
The per-piece calories in this table, and in the comparison table further down, are our arithmetic from each USDA 100 g row at the weight shown; only the packaged chocolate loaf's 2 oz figure is a label serving. The zucchini muffin is not a different food. USDA gives it the same per-100-g profile as the loaf — 306 calories, 13.14 g fat, 22.72 g sugars — so a muffin is only heavier because 57 g of batter is heavier than a 40 g slice. Bake the batter in a pan or in a muffin tin and the calories follow the weight, nothing else.
Pumpkin bread lands within a rounding error, 305 against 306, with a little more fiber (1.1 g against 0.9 g per 100 g). Carrot muffins are the richest of the shredded-vegetable group at 314 per 100 g. Irish soda bread is the outlier in the good direction: no oil poured into the batter and no sugar-heavy fruit, so it comes in at 301 per 100 g with 8.96 g of fat instead of 13.14 g, and 12.7 g of sugars instead of 22.72 g.
Chocolate zucchini bread is where the label stops being a formality. The packaged version above is 386 calories per 100 g, 26% above the plain USDA record, and its own serving is 2 oz rather than a slice — 220 calories for a piece most people would call small.
Sugar, not fiber, is the row to watch
Zucchini bread reads like a vegetable bake and behaves like a dessert. Sugar makes up 22.72 g of the 42.64 g of carbohydrate per 100 g — more than half — which works out to 9.1 g in a single 40 g slice. USDA does not publish added sugars for this record, so the split between what the zucchini brings and what the recipe pours in is not something anyone can print with a straight face. Bakers know the answer anyway: it is mostly the recipe.
The fiber row is the surprise going the other way. A slice gives 0.4 g, which is 1% of the Daily Value, because shredded zucchini is largely water and leaves moisture behind rather than roughage. MyPlate's grain guidance asks for whole grains in at least half your grain servings; a quick bread built on white flour is not that, whatever is grated into it.
Sodium stays modest. A slice carries 116 mg, 5% of the Daily Value, and two slices 232 mg — about a tenth of a teaspoon of table salt. Saturated fat is mild too at 0.9 g per slice, 4% DV, though butter-based recipes will sit higher than this oil-based USDA record. If you are keeping an eye on the pattern rather than the slice, the Dietary Guidelines for Americans framing is the useful one: this is a small, occasional piece of a day, not a breakfast base.
Protein is the practical weakness. At 2.0 g a slice, zucchini bread will not hold you for long. Pair it with Greek yogurt or eggs and the same 122 calories start earning their place; eat two slices alone at 9 a.m. and you have spent 245 calories on something that leaves in an hour.
How does zucchini bread compare?
| Bread | Per 100 g | US serving | Calories |
|---|---|---|---|
| Zucchini bread | 306 kcal | one slice, 40 g | 122 kcal |
| Pumpkin bread | 305 kcal | one slice, 40 g | 122 kcal |
| Zucchini muffin | 306 kcal | one muffin, 57 g | 174 kcal |
| Irish soda bread | 301 kcal | one slice, 40 g | 120 kcal |
Our take: for a smaller number, take Irish soda bread — it is the lightest of the four per 100 g and the only one with meaningfully less fat and sugar, and its 40 g slice is 120 calories. For satisfaction per calorie, the zucchini muffin wins only if you want a defined portion you cannot cut bigger; at 174 calories it is a slice and a half of the loaf, priced honestly. Zucchini bread and pumpkin bread are the same decision in different clothes, so pick the flavor you like. The choice that actually costs you is not which of these four, but how thick you cut the loaf.
Most popular zucchini bread brands in the United States
Ranked by how widely each product appears among foods sold in the United States, from the BodyPal food database of over 3.3 million products. Calories are the figures printed on each Nutrition Facts label, checked against USDA FoodData Central.
| Product | Calories (per 100 g) |
|---|---|
| Bakehouse Bread Company Zucchini Bread | 380 cal |
| Wild Oats Organic Zucchini Bread | 377 cal |
| Outrageous Baking Chocolate Zucchini Bread | 386 cal |
| Evergreen Zucchini Bread | 306 cal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels / USDA FoodData Central.
Zucchini bread FAQs
How many calories are in a slice of zucchini bread?
A standard USDA slice weighs 40 g and carries 122 calories, at 306 calories per 100 g. Cut it thick, the way most home bakers do, and a 60 g slice comes to 184. Two normal slices land at 245. The knife moves this number more than the recipe does.
How much sugar is in zucchini bread?
9.1 g of sugar sits in a 40 g slice, and 22.72 g in every 100 g, which is more than half the carbohydrate in the bread. USDA does not publish added sugars for this record, so there is no way to separate what the zucchini brings from what the recipe pours in.
Does zucchini bread have fiber?
Barely: 0.4 g per slice, 1% of the Daily Value, and 0.9 g per 100 g. The zucchini goes in shredded and mostly as water, so it adds moisture rather than roughage. If fiber is what you are after, whole-grain bread or the vegetable itself does far more work for you.
How many carbs are in zucchini bread?
17.1 g of carbohydrate per 40 g slice, 6% of the Daily Value, and 42.64 g per 100 g. Sugar accounts for 9.1 g of that slice. Two slices with coffee put you at 34.2 g of carbohydrate, a fair share of a light breakfast for very little protein in return.
Is zucchini bread healthy?
One slice is 122 calories with 0.4 g of fiber and 2.0 g of protein, so it behaves like cake rather than like bread, and it does not count as a vegetable serving. As an occasional treat it fits most days. Leaned on as breakfast, it is thin on everything except sugar.
Is zucchini bread the same as pumpkin bread in calories?
Almost exactly: pumpkin bread is 305 calories per 100 g against 306 for zucchini bread, and a 40 g slice of either is 122 calories. Pumpkin bread carries slightly more fiber, 1.1 g against 0.9 g per 100 g. Choose between them on flavor, because the calorie difference is noise.
How many calories are in chocolate zucchini bread?
220 calories for a 2 oz (57 g) piece of one packaged chocolate zucchini bread, which runs 386 calories per 100 g. That is the heaviest zucchini bread in the USDA Branded data and about 26% above the plain 306 of the survey record. Chocolate adds sugar and fat together.
How many calories are in a zucchini muffin?
174 calories for one 57 g zucchini muffin. USDA lists the muffin with the same per-100-g numbers as the loaf, 306 calories, so the muffin is heavier only because it is a bigger piece of the same batter. A 40 g slice of the loaf is 122 calories by comparison.
Similar foods
- Spinach Tortilla — 132 cal per tortilla
- Corn Muffin — 345 cal per medium muffin
- Bolillo — 372 cal per medium roll
- Pork Roll — 197 cal for 2 slices
- Syrian Bread — 157 cal per medium pita
- French Bread — 174 cal per medium slice
Count it without the math
Point the camera at the plate and BodyPal counts the slice for you, thick cut or thin.
