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Calories · Italian

Calories in fettuccine alfredo

A typical restaurant serving of fettuccine alfredo (one restaurant plate, about 400 g) is about 820 calories, usually 600–1,300.

Restaurant portions vary; this is a typical estimate, not a label. Also called alfredo pasta, pasta alfredo.

~820
Fettuccine alfredo

The usual range

Drawn on one 0–2,000 scale shared by every dish page, so plates compare at a glance.

Protein, carbs and fat

  • Protein15 g
  • Carbs62 g
  • Fat56 g

One serving

Serving
one restaurant plate
Weight
~400 g
Per 100 g
~204

The dish

About fettuccine alfredo

Fettuccine alfredo is one of the richer pasta dishes because its sauce is built on butter, cream and parmesan. That sauce carries over half the energy on the plate, with the pasta making up most of the rest.

What moves the number

Why one plate is 600 and another 1,300

  • Butter, cream and parmesan in the sauce
  • Large pasta portions
  • Added chicken or shrimp

Ordering lighter

If you want a lighter plate

  • Order a lunch or half portion
  • Share a plate and add a salad
  • Ask for lighter sauce

Side by side

Next to other Italian dishes

Italian · typical restaurant servingAll about Italian food →

In PlateDiary

A rough number for the dishes you save — only if you want one.

Off unless you turn them on

Calories in PlateDiary are off unless you turn them on. Switch them on and, when PlateDiary AI reads your photo of the table, each dish gets one rough “~” number. Accept it or change it; a number you correct is remembered for that dish. With Calories off, the app looks exactly as it did before.

A read sends small pictures of the cut-out dishes, with the place's name as a hint — never the table photo, faces or your location. Calorie numbers never go to analytics, and nothing is written to a health app. PlateDiary AI starts with free tries; here is how it works.

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How these numbers were made

Method and sources

Last reviewed

Restaurant portions and cooking vary, so these are typical estimates for one serving, built from the sources below. Treat it as a rough number: your plate may land anywhere in the range.

If you manage a health condition, ask a doctor or registered dietitian.

AI helped draft this page; every number was checked against the sources.

  1. USDA FoodData Central (FNDDS 2021–2023) — Pasta with cream sauce, restaurant, FDC 2708855

Questions

Questions people ask.

How many calories are in fettuccine alfredo?

A typical restaurant serving of fettuccine alfredo (one restaurant plate, about 400 g) is about 820 calories, usually 600–1,300. The number depends mostly on the portion and how it is cooked.

Why is fettuccine alfredo so high in calories?

The sauce is butter, cream and parmesan, and it carries more than half the plate's energy — about 56 g of fat on a 400 g plate.

Does adding chicken or shrimp change it much?

It adds some, mostly protein. The sauce and the size of the pasta portion move the number far more.

What changes the calories in fettuccine alfredo?

Butter, cream and parmesan in the sauce. Large pasta portions.

How can I order fettuccine alfredo lighter?

Order a lunch or half portion. Share a plate and add a salad.

Can PlateDiary show calories for the dishes I eat out?

Yes, if you want it to: calories in PlateDiary are off unless you turn them on. Switch them on and each dish you save from a photo of the table gets one rough “~” number you can accept or change.