Dry to Cooked Pasta Calculator: How To Nail Serving Sizes

There’s something so comforting about indulging in a large bowl of pasta — the al dente texture paired with your favorite sauce brings warmth with every bite.
But do you feel like you’re making too much or too little pasta for your family?
The serving size on the box can be confusing. Our dry to cooked pasta calculator simplifies the math and calculates the amount you need for any recipe. Whether you’re cooking pasta for one, feeding a crowd or trying to reduce your leftovers, our dry pasta to cooked pasta converter is here to assist.
Dry to cooked pasta calculator
Type of pasta?
Choose the type of pasta you are cooking
How to convert dry pasta to cooked pasta
Whether you’re cooking dinner for two or the entire family, it’s important to use the correct ingredient amount. When converting dry pasta to cooked pasta, you’ll need to know the weight of the cooked pasta, the weight of dry pasta and the ratio of dry pasta to cooked pasta. Our dry to cooked pasta calculator handles the hard work for you, but if you’re looking to do the work manually, you can use this formula:
CP=DP∗R |
The ratio of dry pasta to cooked pasta varies depending on the type of pasta, shape and thickness. Your personal preference for doneness also factors into the ratio. The rule of thumb is that 2 ounces (56 g) of dry pasta yields approximately 1 cup (250 mL) of cooked pasta.
For the most accurate results, we recommend using a food scale to measure your ingredients.
Cooked pasta conversion table
When converting dry pasta to cooked pasta, the final texture you're aiming for is key. The amount of water and cooking time can result in slightly different textures, all useful depending on your recipe.
For example, a slightly undercooked pasta is perfect for baked dishes like baked ziti or macaroni and cheese, as it will continue to absorb liquid and cook in the oven. Al dente provides a firm bite that's ideal for most pasta dishes. Soft pasta is fully cooked and tender, a great option for young children or soup recipes.
Dry pasta weight (g) | Undercooked weight (~x2.0) | Al dente weight (~x2.25) | Soft weight (~x2.4) |
50g | 100g | 113g | 120g |
100g | 200g | 225g | 240g |
150g | 300g | 338g | 360g |
Tips for cooking pasta perfectly
It’s one thing to convert dry pasta to cooked pasta, but it’s another to cook it to perfection. Here are a few tips for cooking pasta perfectly — or shall we say al dente?
- Use the correct pot size: Make sure your pot is large enough to accommodate the pasta without overcrowding.
- Add enough water: Use plenty of water, about 4-6 quarts per pound of pasta, to prevent sticking and ensure even cooking.
- Salt your water: Add salt to the boiling water before adding the pasta, which helps flavor the pasta from within and enhances its taste. Aim for 1-2 tablespoons of salt per gallon of water.
- Wait for a rolling boil: Allow the water to come to a rolling boil before adding the pasta. This ensures the pasta cooks evenly and maintains its shape.
- Stir occasionally: Stir the pasta occasionally to prevent it from sticking together and to the bottom of the pot.
- Test for doneness: Begin testing the pasta for doneness a few minutes before the recommended cooking time. The pasta should be tender yet still slightly firm to the bite, known as "al dente."
- Save some pasta water: Before draining the pasta, reserve a cup of the cooking water. Use the starchy water to thin out thick sauces, add flavor and help the sauce adhere better to the pasta.
- Toss well: Mix the pasta and sauce thoroughly to ensure every piece is evenly coated.
- Serve immediately: Once the pasta is coated in sauce and heated through, serve it immediately.
Once you've mastered the basics, you can start experimenting with different flavors and textures. Try improving a simple dish with a sprinkle of Parmesan cheese, which some people consider to be the best cheese for pasta. You can also explore a variety of sauces and toppings, from fresh herbs to breadcrumbs.
If you've made too much, our leftover recipe generator provides creative ways to use it up, so nothing goes to waste. The right cooking utensils, from a large pot for boiling to tongs for serving, can also create a smoother cooking and serving process.
Easy pasta recipes

Looking for easy pasta recipes for lunch or dinner? Check out these recipe ideas for inspiration.
- Homestyle lasagna
- Refreshing pasta salad
- Cheesy baked ziti
- Creamy fettuccine alfredo
- Spaghetti carbonara with bacon
- Creamy macaroni salad
- Baked spaghetti
- Cacio e pepe
- Baked mac and cheese
- Pesto pasta
- Egg noodles
- BLT pasta salad
- Sun-dried tomato pasta with goat cheese
- Ditalini soup with veggies and beans
- Lemon shrimp pasta
- Brown butter pasta with herbs
Grab it now on Instacart
Additional cooking calculators
Skip the guesswork! Convert more common ingredients using these cooking calculators.
Instacart is al dente every time
Our dry to cooked pasta calculator is here when you’re in a pinch. Take the guesswork out of cooking with resources that help cut down on prep and cook time so you can get back to spending time with your family over a comforting bowl of pasta.
Serve al dente pasta every time with the help of Instacart. Shop all shapes and sizes of pasta with the click of a button. Receive your groceries right to your door — Instacart makes cooking a delicious meal for your loved ones easier than ever.
Not sure which sauce to use? Check out the different types of pasta sauce to find your next favorite.
Mel Hull
Author
Mel is a seasoned content strategist and food writer with over a decade of experience helping brands tell compelling stories. Inspired by her hometown of Houston, TX, she brings her love of bold flavors and Southern hospitality to the table. In the kitchen, she loves baking (especially banana bread!) and experimenting with Tex-Mex dishes.
Heather Matley
Editor
Heather Matley is an editor at Instacart whose passion for food and cooking has inspired her work on everything from grocery guides to recipe development. With over eight years of experience in editing, content creation, and search engine optimization, she strives to empower readers with the most effective tools, guides, and ideas to transform their home cooking.
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