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Portions and preparation · USDA nutrition

Roll, white calories per medium/regular/sandwich size roll: 120–164 across 2 of 3 named USDA examples

Across 2 of 3 named USDA examples, a medium/regular/sandwich size roll contains 120–164 calories. Their listed weights span 43–56 g, so each calorie value is calculated from that example's own gram weight and published calories per 100 g. The remaining 1 specifically named example does not list that exact household measure.

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Preparation and portion

Named measures come from this exact source record.

Estimated for 1 medium/regular/sandwich size roll · 56 g

164calories

Roll, white, hard

Protein
5.5 g
Carbs
29.5 g
Fat
2.4 g

These values scale the selected reference food by weight. Ingredients, preparation, and portion size can change your meal’s estimate.

FoodData Central Survey Foods (FNDDS) · FDC 2707655 Full nutrition profile →

Compare all 3 food records, nutrition tables and USDA sources

The 3 exact records in this guide report 120–296 calories in the records' own listed source servings and 279–293 calories per 100 grams. Those are observations from named database records—not a universal range or an estimate of an unseen plate.

Match my meal

Start with the description closest to what you ate

For Roll, white, begin by separating “Roll, white, hard” from “Roll, white, soft.” Choosing a card filters this source set; it does not infer the portion or fill in ingredients the chosen description does not name.

Showing all 3 linked records.

Equal-weight view

How roll, white records compare at 100 grams

All 3 cited records are shown at the same 100-gram weight. The source servings may differ.

  1. Roll, white, hoagie, submarine 279 kcal
    279 kcal
  2. Roll, white, soft 279 kcal
    279 kcal
  3. Roll, white, hard 293 kcal
    293 kcal

Shared basis: 100 g · kilocalories

What this page compares

Named source records, not one universal meal

This guide keeps 3 named USDA records in view: 3 direct matches. All sit within “Rolls and buns.” The exact descriptions remain the unit of comparison; the familiar heading is only the doorway into the evidence.

Why these records appear together: The deterministic grouping rule “normalized first two description segments” placed these 3 records together under the exact grouping key “roll white.” That rule determines membership before any nutrition result is read.

For Roll, white, this page can compare 3 named records from FDC 2707655 through FDC 2707654. It cannot observe which preparation was eaten, recover unnamed additions, or supply the eaten grams.

Read the shared calculation, provenance, and uncertainty method →

Editor’s decision brief

The three facts to carry into the table

Carry the denominator, exact identity, and strongest observed contrast into every number below.

Portion

43–106 g before composition

The largest source amount is 2.5× the smallest. Read per-serving calorie differences with that mass gap in view.

Composition

14 kcal separates the fixed-weight endpoints

The lower endpoint is “hoagie; submarine”; the higher is “hard.” This isolates density, not ingredient causation.

Discriminator

0.5 g fiber gap per 100 g

Of protein, fiber, and sodium, the strongest normalized contrast is between “hoagie; submarine” (1.8 g) and “hard” (2.3 g).

Observed source examples

Three landmarks inside this source set—not universal endpoints

The cards are ordered by calories in each record's listed serving. Serving weights differ, so use per-100-gram values to compare composition. These selected records do not define a calorie range for every roll, white.

Important: “Lower” begins with Roll, white, soft; “higher” ends with Roll, white, hoagie, submarine, using each record’s own source amount. Those labels order this selected set only—they are not endpoints for every roll, white meal.

Full comparison

Compare every selected FNDDS record

For Roll, white, serving columns preserve each record’s own listed amount, while calories per 100 g hold weight constant. A dash means the cited record does not supply that field; it does not mean the nutrient is absent.

On smaller screens, focus the table and scroll horizontally to read every column.

USDA records selected for the Roll, white nutrition guide
Exact source record Match Source amount Calories kcal / 100 g Protein Fiber Sodium USDA
Roll, white, hard Direct name match 56 gUSDA reference amount 164 kcal 293 5.5 g 1.3 g 305 mg FDC 2707655 ↗
Roll, white, hoagie, submarine Direct name match 106 gUSDA reference amount 296 kcal 279 10.4 g 1.9 g 524 mg FDC 2707663 ↗
Roll, white, soft Direct name match 43 gUSDA reference amount 120 kcal 279 4.2 g 0.8 g 212 mg FDC 2707654 ↗

Portion analysis

Serving total and calorie density answer different questions

The listed source amounts run from 43 to 106 grams—a 63-gram gap before composition enters the comparison. Their own source servings run from 120 calories for “soft” to 296 for “hoagie; submarine.” At a fixed 100 grams, “hoagie; submarine” is 279 calories and “hard” is 293—a fixed-weight separation of 14 calories. For Roll, white, the serving view answers “how much is in the database portion?”; the 100-gram view answers “how concentrated is the matched record?” Neither reveals how many grams were actually eaten.

The scaling rule: multiply a per-100-gram value by eaten grams ÷ 100. The arithmetic is exact; the result is only as defensible as the record match and portion estimate.

Preparation analysis

The long description carries the evidence

The published descriptions distinguish forms such as “white, hard”, “white, hoagie, submarine”, and “white, soft”. The source formulations contain 2 distinct ingredient codes; examples that appear in only part of the set include rolls, hamburger or hotdog, plain and rolls, hard (includes kaiser). On this Roll, white page, those rows make the records inspectable, but they are not a controlled experiment: they cannot tell us that one named input, by itself, caused a nutrient difference.

Database precision is not meal certainty. Retain the exact description beside the number so later corrections remain possible.

What changes the comparison

Four drivers worth checking before choosing a record

The family label “Roll, white” cannot resolve the differences between Roll, white, hard and Roll, white, soft. The four checks below identify the record wording, source weight, and formulation evidence that can.

  1. 01

    Source weight before serving calories

    The source amounts span 43–106 grams. Compare per 100 grams before reading a serving-calorie gap as a composition gap.

  2. 02

    The words that split the family

    Representative record-level distinctions include “white, hard”, “white, hoagie, submarine”, and “white, soft”. Those phrases are evidence for choosing a record, not decorative subtitle text.

  3. 03

    Formulation evidence, with limits

    2 source-input codes appear across the selected records. Their presence and listed weights describe USDA formulations, not finished plated proportions.

  4. 04

    The unresolved plate

    Even “Roll, white, hard” leaves the eaten grams and unnamed oils, sauces, toppings, substitutions, or leftovers unresolved. Preserve those Roll, white unknowns for correction instead of converting them into false precision.

Record matching

Match identity first; scale quantity second

Read the source name as a sequence of decisions. First confirm that roll, white is the right meal family. Then resolve the phrases that actually separate this set—“white, hard”, “white, hoagie, submarine”, and “white, soft”—before comparing gram weight. If a package, menu, or known recipe provides a closer first-party description, prefer it and keep this USDA record as a transparent fallback.

A practical matching checklist

  1. Read the complete Roll, white source description, including preparation and additions.
  2. Compare the listed source weight with the amount actually eaten.
  3. Prefer a current package or restaurant source when a specific branded item is known.
  4. Record toppings, sauces, cooking fat, sides, and substitutions that the selected description does not name.

Decision support from the exact records on this page

Turn source data into a better next decision

These conclusions and reading paths are computed from 3 exact records behind Roll, white source-record guide. Links are chosen by record identity, controlled contrast, formulation input, nutrient spread, or serving context—not by loose keyword similarity.

Equal-weight result

Roll, white, soft is higher in total sugars per 100 g

Roll, white, soft reports 7.3 g versus 1.8 g for Roll, white, hard: a 5.5 g difference when both are normalized to 100 g.

Inspect the underlying evidence

The denominator changes the answer

Roll, white, hard is denser; Roll, white, hoagie, submarine is higher in its source amount

Roll, white, hard reports 293 kcal per 100 g and 164 kcal in USDA source amount (56 g). Roll, white, hoagie, submarine reports a lower 279 kcal per 100 g but a higher 296 kcal in USDA source amount (106 g).

Record identity is part of the estimate

Distinguish “Roll, white, hard” from “Roll, white, soft”

These are separate USDA records with separate formulations or survey descriptions. Match preparation, additions, and the named household amount before borrowing either record’s nutrients.

Inspect the underlying evidence

Contextual knowledge graph

Follow the relationship that matches your question

For Roll, white source-record guide, each path states why the destination belongs here, so you can distinguish a true evidentiary connection from a merely similar label.

A formulation detail that separates records Rolls, hamburger or hotdog, plain

USDA input 18350 appears in 2 of 3 context records; its summed listed input weight spans 100–100 g across those source formulations. These are source-formulation input weights, not plated or serving weights. Follow the code to inspect every represented occurrence.

Follow this evidence path 3 context records in this source topic Rolls and buns

Roll, white, hard and Roll, white, hoagie, submarine belong to this USDA source-category collection. Its displayed ranges and complete exact-record catalog provide the peer set for a manual comparison; the destination does not preselect this page’s record.

Follow this evidence path Inspect an exact record Roll, white, hard

Open the full nutrient table, household measures, formulation inputs, and FoodData Central 2707655 citation for this exact record—not a name-level average.

Follow this evidence path Check another exact record Roll, white, hoagie, submarine

Open the full nutrient table, household measures, formulation inputs, and FoodData Central 2707663 citation for this exact record—not a name-level average.

Follow this evidence path Put the observed spread in corpus context Calcium: density and serving context

In this page’s records, calcium runs from 95 mg in Roll, white, hard to 144 mg in Roll, white, soft, all per 100 g.

Follow this evidence path Put the observed spread in corpus context Dietary fiber: density and serving context

In this page’s records, dietary fiber runs from 1.8 g in Roll, white, hoagie, submarine to 2.3 g in Roll, white, hard, all per 100 g.

Follow this evidence path 3 records share this broad food family Breads & baked goods: broader category context

Roll, white, hard and Roll, white, hoagie, submarine, plus 1 more are assigned to Feast’s Breads & baked goods editorial category. Use the category page to compare nearby foods at a broad level; keep the exact USDA descriptions on this page for record-level decisions.

Follow this evidence path