How many calories are in a Kellogg's bar?

December 8, 2025 •

3 min read

The number of calories in a Kellogg's bar varies significantly by product, with Special K bars sometimes containing as few as 78 calories and Krave bars ranging up to 200 calories or more. Understanding this range is key to selecting a snack that aligns with your dietary needs.

Quick Summary

Kellogg's bars vary in caloric content depending on the specific product line. Compare the calories, fat, and sugar content across Nutri-Grain, Special K, Rice Krispies Treats, and Krave bars to make informed dietary choices.

Key Points

Varied Calorie Count: Kellogg's bar calories differ significantly by product line and flavor, with a wide range from low to high.
Special K (Lowest Calorie): Special K bars are generally the lowest in calories, often providing under 100 kcal per bar for certain varieties.
Krave (Highest Calorie): Krave Treat bars are among the highest, with some varieties containing 200 calories per bar.
Nutri-Grain (Mid-Range): Nutri-Grain bars typically fall in the 100-160 calorie range, balancing whole grains with fruit fillings.
Rice Krispies Treats (Mid-Range): The classic marshmallow Rice Krispies Treats contain a consistent 90 calories per bar.
Check the Label: For the most accurate and current information, always consult the product's nutrition label, as formulations can change over time and vary by region.
Consider Your Goal: Choose a bar based on your dietary goal, whether you prioritize a lower calorie count, whole grains, or an occasional, satisfying treat.

The Varied Caloric Landscape of Kellogg's Bars

Kellogg's produces a wide array of snack bars, and the calorie content is not universal across the entire product line. Factors like ingredients, portion size, and specific formulations for different markets all contribute to a varied nutritional profile. Consumers should always check the nutritional information on the packaging for the most accurate data, but a general overview can help guide your choices.

Kellogg's Special K Bars

Often marketed as a lighter, healthier option, Special K bars are typically among the lowest in calories within the Kellogg's lineup. Varieties like the Special K Milk Chocolate bar often contain around 78 to 97 calories, depending on the specific market and size. The Special K Strawberry Cereal bar also typically comes in at a modest 90 calories. These bars are a popular choice for those watching their calorie intake, but it's important to remember they still contain sugar and should be consumed as part of a balanced diet.

Kellogg's Nutri-Grain Bars

Nutri-Grain bars occupy a middle ground in terms of calorie content. With a soft-baked texture and a fruit-filled center, they are generally a bit heartier than Special K bars. The caloric value can range from 101 to 160 calories, influenced by the flavor and serving size. For example, a Nutri-Grain Strawberry Snack Bar contains approximately 136 kcal in a 37g serving, while a Nutri-Grain Original Bar can be around 101 calories. These bars often contain whole grains, but also a notable amount of sugar.

Kellogg's Rice Krispies Treats

The classic Rice Krispies Treats are known for their signature crispy, marshmallowy texture. These snack bars are surprisingly consistent in their calorie count. A single, original Rice Krispies Treat bar contains around 90 calories per serving. While a fun and classic treat, they are primarily composed of carbohydrates and sugars with minimal protein and fat, making them a more indulgent option compared to some other bars.

Kellogg's Krave Bars

For a more decadent, treat-style snack, Kellogg's offers Krave bars. These are typically the most calorically dense in the range. A Krave Treat Bar, often filled with chocolate, can contain 200 calories per bar. Another example is the Kellogg's Krave Stix Chocolate Hazelnut Cereal Bar, which has about 98 kcal per 20.5g serving. The higher calorie count is usually due to additional ingredients like chocolate, thicker coatings, and larger portion sizes.

Factors Influencing Calorie Counts

Several factors can cause variations in calorie counts, even within the same product line.

Flavor: Different flavors often mean different ingredients and toppings. A chocolate-covered version will almost always have more calories than a plain version.
Market Variations: Product formulations and serving sizes can differ between countries. Calorie counts from US packaging may not match UK or European versions.
Product Evolution: Recipes change over time. What was true for a bar a few years ago may not be the case today. Always rely on the most current packaging.

Comparing Kellogg's Snack Bars


Product	Calories (approx.)	Fat (approx.)	Sugars (approx.)	Notes
Special K Milk Chocolate (20g)	78 kcal	1.9 g	5.0 g	Higher fiber, lower calorie option
Rice Krispies Treat (Original, 22g)	90 kcal	2.0 g	8.0 g	Classic treat, moderate sugar
Nutri-Grain Strawberry (37g)	136 kcal	3.1 g	12 g	Fruit-filled, includes whole grains
Krave Treat Bar (45g)	200 kcal	7.0 g	17 g	Indulgent, higher calorie option

How to Use This Information

Choosing a Kellogg's bar depends on your dietary goals and preferences.

For a lower-calorie snack: Opt for Special K bars, which offer a high-fiber option with a controlled calorie count.
For a satisfying, whole-grain option: Nutri-Grain bars provide whole grains, but keep an eye on the sugar content.
For an occasional treat: Rice Krispies Treats or Krave bars can satisfy a craving but are higher in sugar and less nutritionally dense.

Visit the official Kellogg's website for comprehensive and up-to-date product information and nutritional facts.

Conclusion

In summary, the number of calories in a Kellogg's bar is not a single number but a spectrum that ranges significantly based on the product line. From the lower-calorie Special K options to the more indulgent Krave and classic Rice Krispies Treats, Kellogg's offers a variety of choices. By consulting the nutritional labels and understanding the general calorie range of each product line, you can make informed decisions that fit your specific dietary needs. Regardless of your choice, remember that balance and moderation are key to a healthy lifestyle.

Frequently Asked Questions

Kellogg's Special K bars often have the lowest calorie counts, with some varieties containing as few as 78 to 90 calories per bar.

Nutri-Grain bars contain whole grains and are a source of vitamins and fiber, making them a more nutritionally substantial option than some other bars. However, they still contain a moderate amount of sugar and should be enjoyed in moderation as part of a balanced diet.

An original flavor Rice Krispies Treat snack bar contains approximately 90 calories per serving.

The calorie count varies significantly due to different ingredients, portion sizes, and added components like chocolate coatings, fruit fillings, and nuts.

Yes, there can be differences in nutrition facts and calorie counts due to different formulations and serving sizes used in various regions. Always check the label for the specific product in your country.

Kellogg's bars primarily consist of carbohydrates from grains and sugar. They contain varying amounts of fat and a relatively low amount of protein, depending on the specific product.

The high carbohydrate and sugar content in many Kellogg's bars can provide a quick energy boost for exercise. However, those looking for sustained energy or protein for muscle recovery might consider other options, or pair the bar with a protein source.

To choose the right bar, consider your goals. For a lower-calorie snack, opt for Special K. For whole grains, Nutri-Grain is a good choice. For an occasional treat, the classic Rice Krispies Treat or Krave bars are suitable, but be mindful of their sugar content.