How Many Carbs Are In A Granny Smith Apple? (Calculator)

Granny Smith apples are known for being tangier and slightly sour when compared to sweet red apples. But does this mean they’re lower in carbs and a better apple option if you’re following a low-carb diet such as keto?

In this article, we’ll explain the carb content in Granny Smith apples and help you find the exact carb content you need for any size or weight of Granny Smith using our quick reference charts and carb calculator.

Granny Smith Apple Carb Content

The USDA confirms that 100g of raw Granny Smith apple (including the skin) contains a total of 13.6g of carbs, which is equal to 0.136g per gram of apple.

The Granny Smith apple is typically a smaller variety of apple when compared to larger varieties such as the red delicious or fuji apple. A medium Granny Smith apple will weigh an average of around 167g and contains 22.7g of carbs (18g net carbs).

The quick reference table below shows the number of total carbs and net carbs you can expect in a small, medium, or large Granny Smith apple based on average apple weights.

Granny Smith Apple Size & WeightTotal CarbsNet Carbs
100g of Granny Smith apple13.6g10.8g
Small apple (average 144g)19.6g15.6g
Medium apple (average 167g)22.7g18g
Large apple (average 206g)28g22.2g
Table to show carbs and net carbs in a Granny Smith apple

Apples are higher in carbs than some other fruits because of the sugar content, and although these are natural sugars, this still impacts the carb value. In this example, an average-sized medium Granny Smith apple contains 16g of natural sugars and 4.7g of fiber.

The table below shows the amount of natural sugar in various-sized Granny Smith apples and the fiber content that is used to work out the net carbs.

Granny Smith Apple Size & WeightTotal SugarFiber
100g of Granny Smith apple9.59g2.8g
Small (average 144g)13.8g4g
Medium (average 167g)16g4.7g
Large (average 206g)19.8g5.8g
Table to show sugar and fiber content in a Granny Smith apple

Please note – the data in these tables is based on average weights, and the weight of each apple will vary. For the most accurate data, use the actual weight (excluding the core) and input it into the calculator below.

Infographic to show the carb content of granny smith apples

Granny Smith Apple Carb Calculator

The calculator below will help you to work out the exact carb content (total and net carbs) of a Granny Smith apple based on a specific weight.

To ensure that the data is accurate, we recommend only weighing the parts of the apple you’re going to eat.

Input the weight of your apple to begin:

Did You Know?

Granny Smith apples are lower in natural sugars and higher in fiber than most other apple varieties. Although they’re not particularly low-carb, the net-carb value is lower than sweeter red apples.

Are Granny Smith Apples High In Carbs?

All apples are fairly high in carbs when compared to other fruits such as strawberries or raspberries. However, compared to other apples, Granny Smiths are slightly lower in sugar and higher in fiber, so their net carb values are a little lower.

For example, 100g of Granny Smith apple contains 13.6g of carbs compared to the same weight of Honeycrisp apple, which contains 14.7g of carbs. While this is only a small difference, a Granny Smith might be a better choice if you can’t live without an apple a day.

Although for most, an apple is a healthy snack packed with nutrients, those on low-carb diets often choose to avoid them and pick berries instead.

Key Takeaways

We hope you’ve found the answer you were looking for on this page; here’s a quick rundown of the key points:

  • For those on a low-carb diet, a Granny Smith apple would be considered fairly high in carbs at over 18g of net carbs per medium apple. However, Granny Smiths are lower in net carbs than many other varieties.
  • A Granny Smith apple is lower in net carbs than most other apple varieties because it contains less sugar and more dietary fiber.
  • If you’re on a low-carb diet and you can’t live without apples, opt for a small Granny Smith.

Related Pages

This page is part of a series of useful articles on the carb content in apples and foods containing apples. You might also like the pages in the links below:

Resources Used For This Page

To ensure the nutritional information used in this article is accurate, we have used data from The USDA FoodData Central; the links below contain the source information:

Granny Smith apple USDA nutritional information