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Last updated: Aug 9, 2026

54th Street Grill & Bar

Flat-Iron Steak

Steakhouse & SeafoodPopular

54th Street Grill & Bar Flat-Iron Steak is fat-leaning, with about 75% of macro calories from fat. Each serving has 639 calories, 39g protein, 0g carbs, and 52g fat, making it a stronger fit for high-protein restaurant planning.

1 Serving

Serving Size

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639

Calories

Per serving

39 g

Protein

0 g

Carbs

52 g

Fat

Nutrition Facts

Amount per serving

Calories639 kcal

% Daily Value*

Total Fat 52 g67%

Saturated Fat 21 g105%

Trans Fat 0 g—

Cholesterol 163 mg54%

Sodium 656 mg29%

Total Carbohydrate 0 g0%

Dietary Fiber 0 g0%

Total Sugars 0 g—

Protein 39 g78%

Vitamin A—

Vitamin C—

Vitamin D—

Calcium—

Iron—

Potassium—

Caffeine—

* The % Daily Value tells you how much a nutrient in a serving contributes to a daily diet.

Nutrition Breakdown

639

kcal

Protein39 g (25%)

Carbs0 g (0%)

Fat52 g (75%)

Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Meal Planning Insights

Protein density6.1/10

25% of macro calories come from protein.

Satiety index10/10

Estimated from protein, fiber, calories, and fat balance.

Activity estimate160 min walk

About 64 minutes of running for these calories.

Key Nutrients

Protein 39 g78%

Fiber 0 g0%

Sodium 656 mg29%

Sugars 0 g—

Saturated Fat 21 g105%

How we calculate these values

Diet Compatibility

High protein6.1/10 protein density from 39g protein and 639 calories.Yes

Lower carb0g carbs per serving.Yes

Low fat52g total fat per serving.No

High sugar0g total sugars per serving.No

High sodium656mg sodium per serving.No

Vegetarian source flagNo vegetarian flag is published for this item.Not flagged

Similar Items in Steakhouse & Seafood

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8 oz Sirloin with Garlic Bread705 kcal · 48 g protein

Compare with other items

Select up to 3 items to compare calories, protein, sodium, and macros.

Quick comparisons

Flat-Iron Steak has 557 fewer calories than "Baby Backs" & Chicken Finger Platter and 46g less protein. Compare

Flat-Iron Steak has 66 fewer calories than 8 oz Sirloin with Garlic Bread and 9g less protein. Compare

"Baby Backs" & Chicken Finger Platter1,196 kcal · 85 g protein8 oz Sirloin with Garlic Bread705 kcal · 48 g proteinAdd Monterey Jack Cheese1,170 kcal · 56 g proteinAdult Mac-N-Cheese421 kcal · 12 g proteinAll Toppings785 kcal · 16 g proteinAll-American Bacon Cheeseburger907 kcal · 52 g protein

Compare with "Baby Backs" & Chicken Finger Platter

Flat-Iron Steak Compared With Nearby Items

Compared with 8 oz Sirloin with Garlic Bread, another Steakhouse & Seafood item at 54th Street Grill & Bar, Flat-Iron Steak has 66 fewer calories than it and 9g less protein than it. That makes this page useful for deciding between nearby menu choices, not just reading a raw nutrition label.

Data Source and Methodology

Nutrition values for Flat-Iron Steak are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 9, 2026. Macro percentages use 4 calories per gram for protein and carbohydrates and 9 calories per gram for fat.

Read the data methodology

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