Energy
middle half293 kcalthis record per 100 g
- Corpus median
- 279 kcal
- Middle 50%
- 272–313 kcal
Based on 17 records reporting energy.
This exact USDA record reports 164 calories for 1 medium roll (56 g). That answer belongs to this description and weight; it is not a universal value for every meal that shares the name.
Quick facts
1 medium roll · 56 g
Portion calculator
Choose a source measure or enter the weight you ate.
Estimated for 1 medium/regular/sandwich size roll · 56 g
164calories
Roll, white, hard
— means the source has no value available.
These values scale the selected reference food by weight. Ingredients, preparation, and portion size can change your meal’s estimate.
The editorial read
Portion: the cited record reports about 164 calories for 1 medium roll at 56 grams. On a fixed-weight basis, the same record contains 293 calories per 100 grams. The first number answers a portion question; the second answers a concentration question.
Composition: that source amount also reports 5.5 g protein, 1.3 g fiber, and 305 mg sodium. Read those values together: a calorie total by itself cannot describe the nutrient profile.
Identity: the largest listed formulation input is rolls, hard (includes kaiser), representing 100% of the record’s listed input weight. These are provenance for a standardized calculation, not a recipe for your plate.
The source calls its underlying survey portion “Quantity not specified,” but it separately lists 1 medium roll at the identical weight. We use the familiar household label here without changing the source calculation.
The household measures attached to this record span roughly 7–182 calories across the listed portions. That is a set of scaled examples—not a confidence interval, a recommendation, or a claim about the full universe of recipes.
Calculated from the smallest and largest usable household measures listed by USDA for this exact FNDDS record; not a confidence interval.
Record-specific decision brief
This analysis belongs to USDA FDC 2707655: “Roll, white, hard.” It separates gram-weight arithmetic, corpus context, label signals, and record selection so one number does not have to answer four different questions.
01 · Portion arithmetic
For FDC 2707655, each row multiplies the published per-100-gram values by its stated weight. “1 cubic inch” through “1 large (include Kaiser)” are weight scenarios: named measures come from USDA, while percentage labels are transparent arithmetic.
| Scenario | Weight | Energy | Protein | Fiber | Sodium |
|---|---|---|---|---|---|
| 1 cubic inchUSDA-listed household measure | 2.3 g | 7 kcal | 0.2 g | 0.1 g | 13 mg |
| 1 medium/regular/sandwich size rollUSDA-listed household measure | 56 g | 164 kcal | 5.5 g | 1.3 g | 305 mg |
| 1 large (include Kaiser)USDA-listed household measure | 62 g | 182 kcal | 6.1 g | 1.4 g | 337 mg |
02 · Fixed-weight context
The comparison set contains 17 exact records in the Rolls and buns USDA category. Here, “middle half” describes FDC 2707655’s energy position in that corpus—not nutritional quality, desirability, or a health rating.
Energy
middle half293 kcalthis record per 100 g
Based on 17 records reporting energy.
Protein
middle half9.9 gthis record per 100 g
Based on 17 records reporting protein.
Dietary fiber
middle half2.3 gthis record per 100 g
Based on 17 records reporting dietary fiber.
Sodium
middle half544 mgthis record per 100 g
Based on 17 records reporting sodium.
03 · FDA label lens
At FDC 2707655’s 56 g reference weight, the largest strength-side percentage among the nutrients evaluated here is Iron; the larger tradeoff-side percentage is Sodium. Percentages use FDA label Daily Values, whose general “high” guide begins at 20% Daily Value. This is not an overall score or a personalized target.
Iron2 mg
≈ 10% DV. This does not cross the FDA’s 20% ‘high’ guide.
Sodium305 mg
≈ 13% DV. This does not cross the FDA’s 20% ‘high’ guide.
Saturated fat0.3 g
≈ 2% DV. This does not cross the FDA’s 20% ‘high’ guide.
04 · Highest-impact checks
For “Roll, white, hard,” the first-pass checks follow the evidence actually published: its named weights, the FDC 2707654 alternative, and its source-formulation identity.
USDA assigns those measures 2.3 g and 62 g. At this record’s fixed composition, scaled energy moves from 7 kcal to 182 kcal.
At an equal 100 g, this record has 0.5 g more dietary fiber than “Roll, white, soft.” That is a record-level contrast; it does not identify which ingredient caused the difference.
USDA derives this record from one listed source-input row at 100 g. Real preparations can still differ in water, cooking state, brand, and served weight.
05 · Exact-record choice
Keep this record when “white; hard” fits. Inspect FDC 2707654 when “white; soft” is the more literal description of the food and preparation.
Keep this profile when these fields fit
Inspect this alternative when its fields fit better
Choose the closest description
Treat the long description as data. The phrases doing the most work here are “white” and “hard”. Match those details first; then compare the database weight with the amount you mean.
On smaller screens, focus a nutrition table and scroll horizontally to read every column.
| Exact record | Source serving | Calories / 100 g | Protein / 100 g | Fat / 100 g | Fiber / 100 g | Sodium / 100 g |
|---|---|---|---|---|---|---|
| This recordRoll, white, hard | 56 g164 kcal | 293 kcal | 9.9 g | 4.3 g | 2.3 g | 544 mg |
| Roll, white, soft | 43 g120 kcal | 279 kcal | 9.8 g | 3.9 g | 1.8 g | 494 mg |
| Roll, white, hoagie, submarine | 106 g296 kcal | 279 kcal | 9.8 g | 3.9 g | 1.8 g | 494 mg |
| Roll, whole grain white | 43 g110 kcal | 255 kcal | 9.3 g | 3.5 g | 2.3 g | 512 mg |
| Roll, oatmeal | 36 g97 kcal | 269 kcal | 8.4 g | 4.4 g | 4 g | 447 mg |
| Roll, multigrain | 43 g113 kcal | 263 kcal | 9.6 g | 6 g | 3.8 g | 458 mg |
| Roll, egg bread | 28 g80 kcal | 287 kcal | 9.5 g | 6 g | 2.3 g | 380 mg |
How to compare FDC 2707655: its source amount is 56 g; every 100-gram column removes portion size from the record-to-record comparison. Neither denominator determines your plate’s weight or recipe.
Household measures
For FDC 2707655, the 4 displayed measures scale the same source composition by gram weight; rounding changes presentation, not the underlying ratio.
73 kcal
25 g
164 kcal
56 g
182 kcal
62 g
7 kcal
2 g
At a glance
For FDC 2707655, Sodium is the largest displayed non-protein Daily Value signal. Read the set as label context—not a personalized score.
Sodium
304.6 mg≈ 13% Daily ValueCarbohydrate
29.5 g≈ 11% Daily ValueThe percentages above apply to FDC 2707655’s 56 g reference amount. FDA Daily Values are general label references, not individualized energy or medical targets. Read the FDA explanation ↗
Why FDC 2707655 has no protein percentage here: Feast reports 5.5 g, but does not present grams divided by 50 as FDA protein %DV; applicable label rules account for protein quality and regulatory context.
Source-serving signals
These 1 calculated observation describe FDC 2707655 at 56 g—not a measured or recommended plate.
Nutrition facts
Values are rounded for readability. The source serving is 56 g.
| Nutrient | Amount | Approx. % Daily Value |
|---|---|---|
| Calories | 164 kcal 293 kcal | Not established Not established |
| Protein | 5.5 g 9.9 g | Not shown Not shown |
| Carbohydrate | 29.5 g 52.7 g | 11% 19% |
| Total fat | 2.4 g 4.3 g | 3% 6% |
| Dietary fiber | 1.3 g 2.3 g | 5% 8% |
| Sugars | 1 g 1.8 g | Not established Not established |
| Sodium | 304.6 mg 544 mg | 13% 24% |
| Saturated fat | 0.3 g 0.6 g | 2% 3% |
| Monounsaturated Fat | 0.6 g 1.1 g | Not established Not established |
| Polyunsaturated Fat | 1 g 1.7 g | Not established Not established |
| Cholesterol | 0 mg 0 mg | 0% 0% |
| Potassium | 60.5 mg 108 mg | 1% 2% |
| Calcium | 53.2 mg 95 mg | 4% 7% |
| Iron | 1.8 mg 3.3 mg | 10% 18% |
| Magnesium | 15.1 mg 27 mg | 4% 6% |
| Vitamin C | 0 mg 0 mg | 0% 0% |
| Vitamin D | 0 µg 0 µg | 0% 0% |
| Vitamin A | 0 µg 0 µg | 0% 0% |
| Caffeine | 0 mg 0 mg | Not established Not established |
| Alcohol | 0 g 0 g | Not established Not established |
| Water | 17.4 g 31 g | Not established Not established |
For FDC 2707655, approximate percentages divide the displayed 56 g amount by FDA label Daily Values; they are not personalized targets. “Not established” means FDA sets no Daily Value for that row. Protein %DV remains unshown because adult-label use depends on regulatory context.
Inside the source record
USDA links FDC 2707655 to one source input totaling 100 g in its standardized formulation. Publishing that exact provenance makes “Roll, white, hard” inspectable beside similarly named records.
How to read this
Rolls, hard (includes kaiser) is the only listed source input for this record. That does not mean every real-world version is identical; brands, preparation, water content, and portion weight can still differ.
100 g total listed input weight across the formulation.
| # | USDA input | Listed amount | Input weight | Share of listed input weight |
|---|---|---|---|---|
| 1 | Rolls, hard (includes kaiser)USDA ingredient 18353 | 100 GM | 100 g | 100% |
Exact-record context
For FDC 2707655, the close-record rule searches the USDA “Rolls and buns” category for shared description terms or source inputs. Any surviving pair is compared per 100 grams, so unlike source-serving sizes cannot manufacture the nutrient difference.
This record
Closest inspectable record
| Nutrient | This record | Comparison record | Difference |
|---|---|---|---|
| Calories | 293 kcal | 279 kcal | +14 kcal |
| Protein | 9.9 g | 9.8 g | +0.1 g |
| Carbohydrate | 52.7 g | 50.1 g | +2.6 g |
| Total fat | 4.3 g | 3.9 g | +0.4 g |
| Dietary fiber | 2.3 g | 1.8 g | +0.5 g |
| Sodium | 544 mg | 494 mg | +50 mg |
Plain-English read
At the fixed 100-gram basis, this record lists 0.5 g more dietary fiber than “Roll, white, soft.”
Only this record lists Rolls, hard (includes kaiser). Only the comparison record lists Rolls, hamburger or hotdog, plain. Those formulation rows identify different source records; they do not prove which input caused a nutrient difference.
1 of the six displayed differences clears the documented materiality screen. It is a reading aid, not a health rating.
Formulation evidence
The formulation rows differ, but the source data do not isolate which component caused any nutrient difference. Input weights describe the standardized formulation—not final plated proportions.
Listed only in this record: Rolls, hard (includes kaiser).
Listed only in the comparison: Rolls, hamburger or hotdog, plain.
Portion evidence
This record’s reference amount is 56 g; a familiar listed measure is 1 medium roll (56 g).
The comparison record’s reference amount is 43 g; a familiar listed measure is 1 medium roll (43 g).
Use the 100-gram row to compare FDC 2707655 with FDC 2707654 at equal mass; use their 56 g and 43 g source amounts only for portion matching.
Evidence boundary: FDC 2707655 versus FDC 2707654 is a comparison of standardized source records—not a measurement of your meal, an overall food-quality rank, or proof that one input caused a difference.
Review the full rolls and buns source category → Read the calculation and selection methodology →
From record to familiar meal
These 2 guides place “Roll, white, hard” beside explicitly linked source records; use them to compare preparations without turning FDC 2707655 into a universal recipe.
Uncertainty, made actionable
This is a standardized USDA survey-food profile, not a measurement of every preparation. Actual nutrition can change with item size, recipe or brand, moisture and density, spreads or toppings.
For “Roll, white, hard,” resolve item size first, then move through the remaining 3 published levers. Unknowns should remain visible rather than expanding every assumption at once.
When composition is held constant, nutrient totals scale directly with grams. A 20% weight correction produces the same 20% correction to the scaled totals.
Prefer a package, menu, or known recipe when it identifies the food more precisely. Otherwise preserve the generic record as an explicit approximation.
Match the food state before matching the number. Cooking, draining, or added liquid can change grams and concentration even when the food name barely changes.
Check whether the exact source description already includes it. If not, keep the addition separate rather than silently folding it into the base record.
How we estimated this
FDC 2707655 comes from FoodData Central Survey Foods (FNDDS). Its 293 kcal per 100 g becomes 164 kcal at 56 g through nutrient per portion = nutrient per 100 g × portion grams ÷ 100; this page adds no second nutrition estimate.
About the serving label: USDA describes the underlying survey portion as “Quantity not specified.” The separately listed 1 medium roll has the same gram weight, so the familiar label can be shown without changing the calculation.
Data cycle: 2021–2023, published October 31, 2024
FoodData Central ID: 2707655
FNDDS food code: 51153000
The scaling for FDC 2707655 can be exact while the match to “Roll, white, hard” is wrong. That is why this profile keeps its 56 g weight, 1-row source formulation, and selection uncertainty beside the arithmetic.
Source release October 31, 2024. Review USDA’s data-type documentation ↗ · Read Feast’s full nutrition methodology.