How many grams is 12 oz dried pasta?

Pasta is a staple food for many cuisines around the world. It comes in all shapes and sizes, from long strands like spaghetti to smaller pieces like penne or farfalle. When cooking pasta, it’s important to use the right amount to get perfectly al dente pasta and to match the correct sauce ratio. This often requires converting between ounces and grams. So how many grams are in 12 ounces of dried pasta? Let’s take a closer look.

Quick Answer

12 ounces of dried pasta is equivalent to 340 grams. This conversion can be made by knowing that 1 ounce equals 28.35 grams. So 12 ounces x 28.35 grams per ounce = 340 grams. To summarize:

– 1 oz dried pasta = 28.35 g
– 12 oz dried pasta = 340 g

So if you need 340 grams of dried pasta, you would measure out 12 ounces on a food scale or measuring cup. Knowing this conversion allows you to easily substitute ounces and grams in any pasta recipe.

Explaining Ounces vs. Grams

Ounces and grams are both units used to measure the mass or weight of foods. Ounces are more commonly used in the United States, while grams are the standard metric unit worldwide. Here are some key facts about each unit:


– Abbreviated as oz
– There are 16 ounces in 1 pound
– Used to measure everything from produce to meat to dry goods like pasta in U.S. recipes


– Abbreviated as g
– There are 453.592 grams in 1 pound
– Used to measure foods in the metric system worldwide
– Considered more precise than ounces

So what does this mean for your pasta? When a recipe calls for 12 ounces of pasta, you know there are 16 ounces in a pound. So 12 ounces is 3/4 of a pound of pasta. Turning to grams, there are 453.592 grams in a pound. Since 12 oz is 3/4 lb, then 12 oz converts to 340 grams (3/4 x 453.592 g).

Now that we’ve covered the basics of ounces and grams, let’s look closer at converting between the two units.

Converting Ounces to Grams

There are a few key steps for converting any measurement in ounces to grams:

1. Memorize that 1 ounce equals 28.35 grams. This is the standard conversion.

2. Multiply the number of ounces by 28.35 to get the equivalent number of grams.

3. Double check your math as needed.

Let’s practice this with some examples:

12 Ounces to Grams

– 12 oz x 28.35 g/oz = 340 grams

5 Ounces to Grams

– 5 oz x 28.35 g/oz = 141.75 grams (round to 142 grams)

20 Ounces to Grams

– 20 oz x 28.35 g/oz = 567 grams

So for any quantity of pasta measured in ounces, you simply multiply the ounces by 28.35 to get the number of grams needed.

Converting Grams to Ounces

You can also convert in the other direction, from grams back to ounces. Here is the process:

1. Memorize that 1 ounce equals 28.35 grams.

2. Divide the number of grams by 28.35 to get the equivalent ounces.

3. Round ounces to the nearest increment based on your measuring tool (1/4 oz, 1/2 oz, whole ounces, etc).

Let’s look at some examples converting grams to ounces:

340 Grams to Ounces

– 340 g / 28.35 g/oz = 12 oz

475 Grams to Ounces

– 475 g / 28.35 g/oz = 16.75 oz
(Rounds to 17 oz)

1000 Grams to Ounces

– 1000 g / 28.35 g/oz = 35.27 oz
(Rounds to 35 oz)

So when you need to convert a gram measurement to ounces, simply divide by 28.35 and round accordingly based on your tools.

Pasta Density

When converting between ounces and grams of pasta, it’s important to note that we are talking about dry, uncooked pasta. The density and weight changes once pasta is cooked.

Here are some key points about cooked vs. uncooked pasta:

– Dry pasta is denser than cooked pasta. Dry pasta takes up less volume per ounce than cooked pasta.

– When pasta cooks, it absorbs water which makes it heavier. 1 ounce of dry pasta turns into around 2-3 ounces of cooked pasta.

– So 340 g of dry pasta turns into 680-1020 g after cooking.

– For this reason, recipes specify dry pasta amounts, since the dry weight is more standardized.

The bottom line is that the 340 grams equivalent to 12 ounces only applies to uncooked, dried pasta. The weight changes once pasta absorbs water during cooking. Now that we understand this relationship between dry and cooked pasta, let’s look closer at why it’s useful to know the mass in both ounces and grams.

Why Know Ounces and Grams?

There are a few advantages to knowing pasta amounts in both ounces and grams:

Use Any Recipe

Some recipes use ounces to list pasta amounts while others use grams. Knowing the conversion allows you to adapt any recipe. If you only have a food scale that measures in grams, you can still make recipes with ounce measurements and vice versa.


Grams provide more precise measurements than ounces. A food scale measuring grams can help you perfectly nail the right pasta quantity each time.

Consistent Results

Measuring pasta in grams instead of ounces can remove some human error and inconsistencies in your portions. This leads to reliable results each time you cook.

Visual Comparisons

Seeing a gram amount like 340 g can be hard to visualize. Converting to 12 oz makes it easier to see you need about 3/4 of a 1 lb box of spaghetti. The ounce equivalent creates a visual reference point.

Adapting Recipes

Knowing the conversions allows you to easily double or halve pasta recipes. You can scale the ounces or grams up or down and still achieve the perfect pasta to sauce ratio.

So being comfortable with both ounces and grams provides versatility, precision, visualization, and adaptability in your cooking. Even if you primarily cook with one unit, knowing the other is extremely helpful.

Pasta Packet Conversions

When purchasing pasta at the grocery store, the packet usually provides both ounce and gram amounts. Here are some common pasta packet sizes with both units:

Pasta Amount Ounces Grams
Small Pasta Packet 12 oz 340 g
Medium Pasta Packet 16 oz 454 g
Large Pasta Packet 32 oz 907 g

This shows that a standard 1 lb or 16 oz box of pasta contains 454 grams. Knowing these packet conversions can help you quickly translate ounces to grams and identify how much pasta you are working with.

You can use these packet sizes as visual references. Or you can precisely measure out ounces or grams of any pasta variety using a scale or measuring cups. Either way, the conversions provide a useful framework as you determine amounts for your recipes.

Weight vs Volume

When measuring dry pasta, you can use:

– Weight (ounces or grams)
– Volume (cups)

The most precise way is to use weight, since it accounts for slight density differences between pasta shapes. Measuring volume in cups can vary based on how finely packed the cups are.

For example, 1 cup of penne weighs around 4 ounces. But 1 cup of spaghetti also weighs about 4 ounces, even though the strands pack together differently.

Weight provides a standardized number regardless of pasta shape. So grams or ounces are ideal for consistency. However, volume measurements can work fine for most general cooking. As long as you level off the cups consistently, the variance is minimal.

This table shows rough volume equivalents for common pasta amounts:

Pasta Amount Ounces Cups
2 oz 57 g 1/2 cup
4 oz 113 g 1 cup
8 oz 227 g 2 cups
12 oz 340 g 3 cups

The bottom line is that while weight is most precise, volume measurements can work in a pinch. Use your best judgment based on the tools you have available.

Pasta Types by Weight

Below is a table showing approximate weights for 2 oz (56g) servings of different types of pasta. This illustrates how the weights can vary slightly between pasta shapes using the same volume amount:

Pasta Type Weight per 2 oz Serving
Penne 58 g
Farfalle 59 g
Rigatoni 55 g
Orzo 57 g
Orecchiette 60 g
Spaghetti 56 g

The weights are all close to 2 ounces or 56 grams, but shape and density creates some slight variation. Again, using grams or ounces ensures you account for these differences better than volume alone.

Sample Recipes

Now that we understand ounce and gram conversions for pasta, let’s look at some sample recipes using each unit:

Baked Ziti (Ounces)

– 1 lb ziti pasta (16 oz)
– 24 oz marinara sauce (1.5 jars)
– 16 oz ricotta (2 cups)
– 2 cups shredded mozzarella

1. Cook 1 lb dry ziti according to package directions until al dente. Drain.
2. In a baking dish, combine pasta, sauces, and cheeses.
3. Bake at 375°F for 25 minutes until hot and bubbly.

Shrimp Fettuccine Alfredo (Grams)

– 340 g dry fettuccine
– 110 g butter
– 140 g Parmesan, grated
– 300 g shrimp
– Salt and pepper

1. Cook 340 g fettuccine according to package directions.
2. In a skillet, melt butter and slowly mix in Parmesan.
3. Add shrimp and fettuccine to skillet and toss to coat with sauce.
4. Season with salt and pepper. Serve warm.

Both recipes use typical pasta amounts in each unit of measure. Getting comfortable working with ounces, cups, or grams of pasta takes practice – so don’t be afraid to experiment with different quantities. Over time, you will develop an intuitive sense of just how much pasta you need.


To conclude, 12 ounces of dried pasta equals 340 grams. This conversion is made using the simple math of 1 ounce = 28.35 grams. Understanding ounce and gram conversions allows you to precisely measure pasta and adapt all types of recipes. Learning to work with pasta amounts in different units provides flexibility and consistency in your cooking. So the next time your recipe calls for X ounces or Y grams of pasta, you can confidently make the conversion and cook the perfect pasta dish.

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