What does 100 calories of sourdough / french bread look like?

100 calories =1⅓ oz37 g · 1.3 oz

Medium calorie density2.72 kcal/g

🍞🍞

Each 🍞 = one oz (~28.4 g). The last icon shows a part of one.

Food volume for 100 kcal

Sourdough / French bread has 272 calories per 100 g, so 100 calories is 1⅓ oz of sourdough / french bread (37 g).

Sourdough / French bread: 50 to 500 calories

Calories	Grams	Ounces	Oz
50 kcal	18 g	0.6 oz	⅔
100 kcal	37 g	1.3 oz	1⅓
200 kcal	74 g	2.6 oz	2⅔
300 kcal	110 g	3.9 oz	4
500 kcal	184 g	6.5 oz	6½

What's in 100 calories of sourdough / french bread

4.0 gprotein

19.1 gcarbs

0.9 gfat

0.8 gfiber

Protein 16% Carbs 76% Fat 8% of calories

Want more food for the same 100 calories?

These give you at least 2½ times more volume than sourdough / french bread:

Sauerkraut100 kcal = 3¾ cups 526 g18.6 oz Romaine lettuce100 kcal = 13 cups (shredded) 588 g20.7 oz Asparagus100 kcal = 31 spears 500 g17.6 oz Spinach (raw)100 kcal = 14 cups 435 g15.3 oz

Compare with other bread, rice & grains

Food	100 kcal is	Grams
🍞 Sourdough / French bread	1⅓ oz	37 g
🥣 Oatmeal (cooked with water)	⅔ cup	141 g
🍚 Brown rice (cooked)	½ cup	89 g
🍚 Couscous (cooked)	½ cup	89 g
🍚 Quinoa (cooked)	½ cup	83 g
🍚 White rice (cooked)	⅓ cup	77 g
🍜 Egg noodles (cooked)	½ cup	72 g
🍝 Whole wheat pasta (cooked)	½ cup	67 g
🍝 Pasta (cooked)	½ cup (spaghetti)	63 g
🌮 Corn tortilla	2 tortillas	46 g
🍞 English muffin	¾ muffin	44 g
🥞 Pancakes	1¼ 4-inch pancakes	44 g
🍞 Whole wheat bread	1¼ slices	40 g

See all bread, rice & grains →

Questions

How much is 100 calories of sourdough / french bread?

100 calories of sourdough / french bread is about 37 g (1.3 oz), or roughly 1⅓ oz.

How many calories are in 100 g of sourdough / french bread?

272 calories per 100 g, according to USDA FoodData Central.

Is sourdough / french bread good for weight loss?

Medium calorie density (2.72 kcal per gram). Fine in sensible portions; easy to overeat if you don't measure. 100 calories also gives you 4.0 g of protein and 0.8 g of fiber.

How many calories are in one oz?

About 77 calories.

How many oz is 200 calories?

About 2⅔ (74 g).

Free printable

One page with 300+ foods and their exact 100-calorie portions. Stick it on the fridge.

Source: USDA FoodData Central, "Bread, french or vienna (includes sourdough)" (FDC ID 172675). Grams for 100 kcal = 100 ÷ calories per gram. Unit weight: USDA: 1 oz = 28.35 g. Real portions vary by size, variety and preparation. Updated 2026-10-23.