Use our dry to cooked pasta calculator to get estimated amount of cooked pasta you’ll end up with from a given quantity of dry pasta (long, short, or soup) using CP = DP × R formula.

If you start with 100g of dry spaghetti, the calculator might tell you to expect about 200-250g of cooked pasta.

Dry to Cooked Pasta Calculator

Pasta TypeDry WeightExpansion FactorCooked Weight
Spaghetti75g2.0150g
Penne100g2.2220g
Fusilli50g2.3115g
Ravioli150g1.8270g
Fettuccine80g2.1168g
Macaroni100g2.5250g
Lasagna Sheets120g2.0240g
Orzo50g2.0100g
Pappardelle100g2.1210g
Bucatini75g2.2165g
Cavatappi100g2.4240g
Ziti100g2.2220g
Gemelli50g2.3115g
Tortellini120g1.9228g
Soba Noodles100g2.0200g
Rice Noodles100g2.5250g

Dry to Cooked Pasta Conversion Formula

The formula for converting dry pasta to cooked is:

Cooked pasta weight = Dry pasta weight × Expansion factor

The expansion factor varies depending on the pasta shape but typically ranges from 1.5 to 2.5.

For long pasta like spaghetti, using an expansion factor of 2:

  • 100g dry pasta × 2 = 200g cooked pasta

Let’s say you have 200 grams of dry penne pasta and the ratio of dry to cooked penne is 1:2. To calculate the weight of cooked pasta, plug in the values:

CP = 200 grams × 2 = 400 grams

A 200 grams of dry penne pasta will yield approximately 400 grams of cooked pasta.

How Do You Convert Dry Pasta to Cooked?

  • Measure the weight of dry pasta you want to cook.
  • Choose the appropriate ratio for the type of pasta you’re using. As a general rule:
    • Long pasta (e.g., spaghetti): 1:1.5 to 1:2
    • Short pasta (e.g., penne): 1:1.5 to 1:2
    • Soup pasta (e.g., ditalini): 1:1.5 to 1:2
  • Plug the values into the formula: CP = DP × R
  • Calculate the weight of cooked pasta and use it in your recipe.

Converting 80g of dry penne

Dry weight: 80g

Shape: Short pasta

Expansion factor: ~2.1

80g × 2.1 = 168g cooked penne (approximately)

Assume you want to cook 8 ounces of dry spaghetti. Using a ratio of 1:2, we can calculate the amount of cooked spaghetti:

CP = 8 ounces × 2 = 16 ounces

8 ounces of dry spaghetti will yield approximately 16 ounces of cooked spaghetti.

1 Cup of Dry Macaroni Equals How Much Cooked?

One cup of dry macaroni typically yields about 2 to 2.5 cups of cooked macaroni.

1 cup dry macaroni ≈ 100g

Expansion factor for macaroni ≈ 2.2

Cooked weight: 100g × 2.2 = 220g

220g cooked macaroni ≈ 2.25 cups

100g Uncooked Pasta to Cooked

  • Long pasta (spaghetti, linguine): 100g dry → 200-220g cooked
  • Short pasta (penne, fusilli): 100g dry → 210-250g cooked
  • Filled pasta (ravioli, tortellini): 100g dry → 170-200g cooked

100g dry fusilli

  • 100g × 2.3 (expansion factor) = 230g cooked fusilli

How Much Does 2 oz Dry Pasta Weigh Cooked?

Two ounces (56g) of dry pasta typically yields about 4-5 ounces (113-142g) when cooked.

2 oz (56g) dry spaghetti

56g × 2.1 (expansion factor) = 117.6g cooked spaghetti

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