How many calories are in 2 White Castle sliders?

Quick Answer

Two White Castle sliders contain approximately 420 calories. A single White Castle slider contains around 210 calories on average. So two sliders would contain 420 calories total.

Calories in a White Castle Slider

White Castle is an American fast food hamburger restaurant chain known for its small, square hamburgers called “sliders”. Their most famous menu item is the original slider, which contains the following nutrition information according to the White Castle website:

Calories 210
Total Fat 9g
Saturated Fat 3.5g
Trans Fat 0g
Cholesterol 15mg
Sodium 300mg
Total Carbohydrates 18g
Dietary Fiber 1g
Sugars 2g
Protein 9g

As you can see, a single 2.2 oz White Castle slider contains about 210 calories. This includes 9g of fat, 18g of carbohydrates, and 9g of protein.

Now let’s take a closer look at where those calories come from:


The slider bun is the largest component of the burger. It likely accounts for around 100 calories, coming mostly from carbohydrates. Standard white burger buns are typically high in refined flour, which provides calories but limited nutritional value.

Beef Patty

The slider patty is small but dense, weighing around 1 oz before cooking. Beef contains about 80 calories per raw ounce. Cooked burgers can retain 90-95% of their raw calorie content. So the patty probably provides around 70-75 calories. These come from a mix of protein and fat.


A serving of sliced white onion contains around 10 calories. There may be 5-10 calories’ worth of onion on each slider.


Pickles are very low in calories – only about 3 calories per pickle slice. Let’s estimate 2-3 pickle slices per slider, adding up to 5-10 calories.


Options like ketchup, mustard, and mayonnaise add flavor and moisture but minimal calories. Figure maybe 10 calories total for condiments.


A slice of American cheese contributes about 50 calories, coming from protein and fat. Some sliders may omit cheese to reduce calories.

Total Calories per Slider

Adding up the estimated calories from each component, we land on approximately 210 calories per original slider:

Bun 100 calories
Beef Patty 70 calories
Onions 10 calories
Pickles 5 calories
Condiments 10 calories
Cheese 50 calories
Total Calories 210 calories

This aligns with the nutrition information on White Castle’s website. Of course, the exact calorie count may vary slightly depending on the size of the patty, bun, and other ingredients. But on average, one slider contains approximately 210 calories.

Calories in 2 White Castle Sliders

Now that we know there are about 210 calories in a single White Castle slider, calculating the calories for two sliders is simple:

210 calories x 2 sliders = 420 calories

So the total calorie count for two original White Castle sliders is approximately 420 calories. This makes sense given that the sliders are uniform in size and ingredients. Doubling the quantity doubles the calories.

Daily Calorie Requirements

To put 420 calories into context, we need to look at daily calorie requirements. According to the Dietary Guidelines for Americans, adult men generally need 2,000-3,000 calories per day, while adult women need 1,600-2,400 calories per day. However, individual needs vary depending on age, body size, and activity level.

For a moderately active adult, 420 calories represents around 15-25% of total daily calorie needs. So two White Castle sliders make for a modest meal in terms of calories for most people.

Of course, 420 calories from two beef sliders is not hugely nutritious despite meeting a good portion of calorie needs. Burgers are high in saturated fat and sodium, for instance. For a well-balanced diet, the rest of your daily calories should come from more nutrient-dense whole foods like vegetables, fruits, whole grains, lean protein, and healthy fats.

Other Menu Options

White Castle offers other slider varieties that may be higher or lower in calories:

Cheese Slider

Adds 50 calories of cheese (260 calories total)

Veggie Slider

Removes 70 beef patty calories (140 calories total)

Double Slider

Doubles patty and adds 80 calories (290 calories total)

Kid’s Slider

Smaller patty reduces calories to 170

So you can potentially customize your order to add or reduce calories based on your preferences and diet needs. Just keep in mind that the original slider at around 210 calories is the standard menu item.


In summary, here are the key points:

– A single original White Castle slider contains approximately 210 calories

– Two original sliders contain about 420 calories total

– This accounts for 15-25% of the typical adult’s daily calorie needs

– Sliders are high in fat and sodium despite being moderately low in calories

– Customizing your order with extra or fewer ingredients can alter the calorie count

So if you’re craving those iconic little White Castle burgers, you can enjoy a pair of original sliders for 420 total calories. Just balance them out with more nutritious foods for the rest of the day!

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