# What is 2 oz of pasta to cups?

Converts ounces of pasta to cups and back, from the weight of 1 cup (dry pasta, elbows: 122 g).

- Page: https://www.acalculator.org/convert/2-oz-pasta-to-cups
- JSON spec: https://www.acalculator.org/convert/2-oz-pasta-to-cups.json
- Version: 1dcefe8f5dfc

## Default answer

Example with the default inputs (Ounces (oz) 2, Ingredient Dry pasta, elbows, 122 g per cup): 2 oz = 0.464746 cups (Dry pasta, elbows, 122 g per cup).

## Inputs

| Key | Label | Description |
| --- | --- | --- |
| value | Ounces (oz) | The amount in ounces to convert. |
| result | Cups (cup) | The same amount in cups. |
| ingredient | Ingredient | What you are measuring. A cup of flour weighs less than a cup of water. |

## Outputs

| Key | Label | Description |
| --- | --- | --- |
| value | Ounces (oz) | The amount in ounces to convert. |
| result | Cups (cup) | The amount in cups. |

## Method

cups = oz × 28.349523125 ÷ 122, where grams per cup depends on the ingredient (dry pasta, elbows: 122 g)

## Assumptions

- Grams per cup are USDA FoodData Central (SR Legacy) portion weights for one level US cup (8 US fluid ounces): all-purpose flour 125 g (FDC 168894), granulated sugar 200 g (FDC 169655), brown sugar, packed 220 g (FDC 168833), powdered sugar, unsifted 120 g (FDC 169656), whole milk 244 g (FDC 171265), butter 227 g (FDC 173410), olive oil 216 g (FDC 171413), honey 339 g (FDC 169640), white rice, uncooked 185 g (FDC 169756), dry pasta, elbows 122 g (FDC 169736).
- Ounces here are avoirdupois ounces, a weight: 1 oz = 1/16 lb = 28.349523125 g. A US fluid ounce is a volume.
- Water is pure water: 0.999975 kg per liter at 4 °C and 0.998207 kg per liter at 20 °C, from the Tanaka et al. (2001) density formula.
- How you fill the cup changes the weight: packed, sifted, or scooped flour can differ by 20% or more.
- Exact on the typed decimals: at most 6 decimal places (6 significant digits below 0.0001), rounded half up; an answer of 1 billion or more shows at most 15 significant digits.

## Worked examples

1. value = 8, ingredient = butter gives result = 0.999102. Source: USDA FoodData Central SR Legacy 173410: 1 cup = 227 g.
2. value = 16, ingredient = sugar gives result = 2.267962. Source: USDA FoodData Central SR Legacy 169655: 1 cup = 200 g.
3. value = 2, ingredient = pasta gives result = 0.464746. Source: USDA FoodData Central SR Legacy 169736: 1 cup = 122 g.
4. value = 8, ingredient = pasta gives result = 1.858985. Source: USDA FoodData Central SR Legacy 169736: 1 cup = 122 g.

## FAQ

### What is 2 oz of pasta in cups?

2 oz of pasta is 0.464746 cups. The formula is cups = oz × 28.349523125 ÷ 122: USDA FoodData Central lists 1 level US cup at 122 g (dry pasta, elbows, FDC 169736).

### How do I convert ounces of pasta to cups?

cups = oz × 28.349523125 ÷ 122, where grams per cup depends on the ingredient (dry pasta, elbows: 122 g). For example, 8 oz of pasta is 1.858985 cups.

### Does the pasta shape change the cups?

Yes. USDA FoodData Central lists a level cup of dry pasta at 64 g for shells, 81 g farfalle, 90 g lasagna, 91 g spaghetti, 95 g penne, 96 g rotini, and 122 g elbows. This page uses elbows. 8 oz of spaghetti is 2.492266 cups and 2 oz is 0.623066 cups.

### How many cups is 2 oz of another ingredient?

It depends on the ingredient, because a weight does not fix the volume. 2 oz is about, in cups: all-purpose flour 0.4536; granulated sugar 0.2835; brown sugar, packed 0.2577; powdered sugar, unsifted 0.4725; water at 4 °C 0.2397; water at 20 °C 0.2401; whole milk 0.2324; butter 0.2498; olive oil 0.2625; honey 0.1673; white rice, uncooked 0.3065. Pick the ingredient in the converter for its exact answer.

### Is an ounce here a weight or a volume?

A weight: the avoirdupois ounce, 1/16 of a pound (28.349523125 g exactly). A US fluid ounce (29.57 mL) measures volume, as on the oz to cups page.

## Sources

- USDA FoodData Central, SR Legacy 169736, Pasta, dry, enriched: portions 1 cup elbows = 122 g, shells 64 g, farfalle 81 g, lasagna 90 g, spaghetti 91 g, penne 95 g, rotini 96 g, retrieved 2026-10-19. https://fdc.nal.usda.gov/food-details/169736/nutrients
- USDA FoodData Central, SR Legacy portion weights for 1 cup: FDC 168894 all-purpose flour 125 g; FDC 169655 granulated sugar 200 g; FDC 168833 brown sugar, packed 220 g; FDC 169656 powdered sugar, unsifted 120 g; FDC 171265 whole milk 244 g; FDC 173410 butter 227 g; FDC 171413 olive oil 216 g; FDC 169640 honey 339 g; FDC 169756 white rice, uncooked 185 g. https://fdc.nal.usda.gov/
- Tanaka, M. et al. (2001), Recommended table for the density of water between 0 °C and 40 °C based on recent experimental reports, Metrologia 38, 301–309: pure water 999.9749 kg/m³ at 4 °C and 998.2067 kg/m³ at 20 °C. https://doi.org/10.1088/0026-1394/38/4/3
- NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B.8: Factors for Units Listed Alphabetically (bold factors are exact), retrieved 2026-10-18. https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8
- NIST SP 811 (2008), footnotes to Appendix B: 1 lb = 0.45359237 kg exactly (footnote 22); 1 lbf = 4.4482216152605 N exactly with standard gravity, 9.80665 m/s² (footnote 23), retrieved 2026-10-18. https://www.nist.gov/pml/special-publication-811/nist-guide-si-footnotes