Calories in a Rusk, Granola Bar and Bowl of Granola

By NYUS Inc. · Published 27 October 2026

General information: This article is information about food data. No dietitian or doctor has reviewed it, and it is not a substitute for their advice.
Disclosure: NYUS Inc. publishes this guide and makes the NYUS app, which is mentioned once near the end. The numbers below do not depend on it.

A rusk dunked in chai, a granola bar from the shop, a bowl of granola with milk: three snacks that can be logged by the piece or the bowl, and the piece is very different in size. This guide gives three reference rows from USDA FoodData Central, each with the portions USDA prints on the record. They are generic US records, not a brand and not an Indian tea rusk or the pack in your hand, and Indian food tables (IFCT 2017) have no rusk, granola or cereal bar row at all.

The short answer

By the USDA records below, one rusk (10 g) is about 41 kcal and USDA's other rusk portion, half an ounce (14.2 g), about 58 kcal. A hard plain granola bar is about 99 kcal at 21 g, 118 kcal at 25 g and 132 kcal at 28 g. A cup of homemade granola (122 g) is about 597 kcal, and one ounce (28.35 g) about 139 kcal. Our reading: per 100 g the three rows are close, 407 to 489 kcal, so the weight of the portion decides the calories. A rusk is a small piece, a bar is two to three times heavier and a cup of granola is more than four times a bar, by the weights USDA prints. Corn flakes and muesli are left out because SR Legacy lists them only under brand names.

Calories per portion

Each figure is our arithmetic: kcal per 100 g times the grams in the portion, divided by 100, rounded to the nearest kcal with half rounding up. The portion weights are USDA's, printed on each record page.

FoodSourcePer 100 g: kcal · protein · fat · carbsUSDA portionkcal per portionProtein · fat · carbs
Cereals ready-to-eat, granola, homemadeUSDA FDC 171646489 kcal · 13.7 g · 24.3 g · 53.9 g1 cup, 122 g597 kcal16.7 g · 29.6 g · 65.8 g
Cereals ready-to-eat, granola, homemadeUSDA FDC 171646same1 oz, 28.35 g139 kcal3.9 g · 6.9 g · 15.3 g
Snacks, granola bars, hard, plainUSDA FDC 167542471 kcal · 10.1 g · 19.8 g · 64.4 g1 bar (1 oz), 28 g132 kcal2.8 g · 5.5 g · 18.0 g
Snacks, granola bars, hard, plainUSDA FDC 167542same1 bar, 25 g118 kcal2.5 g · 5.0 g · 16.1 g
Snacks, granola bars, hard, plainUSDA FDC 167542same1 bar, 21 g99 kcal2.1 g · 4.2 g · 13.5 g
Crackers, rusk toastUSDA FDC 174981407 kcal · 13.5 g · 7.2 g · 72.3 g0.5 oz, 14.2 g58 kcal1.9 g · 1.0 g · 10.3 g
Crackers, rusk toastUSDA FDC 174981same1 rusk, 10 g41 kcal1.4 g · 0.7 g · 7.2 g

The sums: granola 489 × 122 / 100 = 596.58, so 597 kcal, and 489 × 28.35 / 100 = 138.63, so 139; granola bar 471 × 28 / 100 = 131.88, so 132, 471 × 25 / 100 = 117.75, so 118, and 471 × 21 / 100 = 98.91, so 99; rusk 407 × 14.2 / 100 = 57.79, so 58, and 407 × 10 / 100 = 40.7, so 41 kcal. Protein, fat and carbohydrate are the same arithmetic on the per 100 g figures, rounded to 0.1 g with half rounding up.

What stands out in the numbers

Why these are reference rows, not your pack

How to log it so the numbers hold

Where NYUS fits (our app)

We make NYUS, so read this as ours. NYUS is an AI fitness and nutrition coach in early access on Android, with no ads and no data selling. You log foods yourself by searching 8,900+ Indian and global foods or by barcode, and a weekly check-in adjusts your calories, macros and step goal once enough is logged. Barcode coverage of Indian packaged foods is not complete, so search by name when a scan finds nothing.

What this page leaves out

Sources

The per portion figures, the sums, the rounding, the comparisons and every sentence starting "Our reading" are NYUS's own arithmetic or opinion, not from USDA. The portion weights in the table are USDA's, printed on the record pages above. The names in the first column are USDA's record names.

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Frequently asked questions

How many calories are in a rusk?

The USDA FoodData Central SR Legacy record 174981 (Crackers, rusk toast) prints 407 kcal per 100 g and lists 1 rusk as 10 g, about 41 kcal by our arithmetic (407 x 10 / 100 = 40.7), and 0.5 oz as 14.2 g, about 58 kcal. It is a generic US rusk toast cracker, not an Indian tea rusk, so weigh yours and scale from 407 kcal per 100 g.

How many calories are in a granola bar?

USDA SR Legacy 167542 (Snacks, granola bars, hard, plain) prints 471 kcal per 100 g and lists three bar weights: 21 g is about 99 kcal, 25 g about 118 kcal and 28 g (1 oz) about 132 kcal by our arithmetic. A chewy, chocolate-coated, protein or fruit bar is not this row; read the pack for those.

How many calories are in a bowl of granola?

USDA SR Legacy 171646 (Cereals ready-to-eat, granola, homemade) prints 489 kcal per 100 g and lists 1 cup as 122 g, about 597 kcal by our arithmetic (489 x 122 / 100 = 596.58), and 1 oz as 28.35 g, about 139 kcal. It is a homemade recipe record, and milk or curd adds its own calories.

Why does a cup of granola have so many more calories than a bar or a rusk?

Mostly the weight. Per 100 g the three records are close, 407 kcal for rusk toast, 471 for the granola bar and 489 for granola, but USDA lists a rusk as 10 g, a bar as 21 to 28 g and a cup of granola as 122 g, so the portions come to about 41, 99 to 132 and 597 kcal by our arithmetic.

Why are there no corn flakes or muesli numbers?

USDA SR Legacy lists corn flakes and muesli only as records named for a brand, and this page uses no brand records and no pack labels, so we give no number for them. IFCT 2017 has no rusk, granola, muesli, corn flakes or cereal bar row either. For those foods, read the grams and calories on the pack you buy.

Can I log a rusk or a granola bar in NYUS?

NYUS is our app. You log foods yourself by searching 8,900+ Indian and global foods or by barcode; scan the pack for a packaged bar, and log milk or curd separately. NYUS is in early access on Android: 30-day free trial, then plans from ₹499 for one month, paid once with no auto-renewal, no card needed to start.