Apples are one of the most popular fruits in the world, yet their natural sugar content raises a lot of questions. This calculator shows exactly how many grams of sugar are in 100 grams of apple — and then translates that number into the apple you actually plan to eat. Choose an apple variety, enter the weight in grams, and you’ll instantly see the total sugar, its teaspoon equivalent, the calories coming from sugar, and a medium-apple reference for comparison.
The values are based on standard nutrition data for common varieties, including Granny Smith, Gala, Fuji, Honeycrisp, and Red Delicious. Sugar levels depend on variety, ripeness, growing conditions, and storage, so the results are best treated as reliable estimates rather than laboratory-precise measurements.
Whether you are tracking carbohydrates, following a low-sugar diet, or simply curious about how apples compare with other snacks, this tool helps you plan portions with confidence. Use it with a kitchen scale for the most accurate numbers, and keep the variety selected as “Average” when you are not sure which apple you have.
A medium apple weighs about 182 g; use a kitchen scale for accuracy.
How the Sugar in Apples Adds Up
Whole apples don't have nutrition labels, so it helps to know the standard reference: per 100 grams, an average apple contains roughly 10.4 grams of naturally occurring sugar. That sugar is mostly fructose, with smaller amounts of glucose and sucrose. Because an apple is about 85% water, 100 grams is not a huge amount of fruit — it is roughly two-thirds of a small apple or a little more than half of a medium one. This calculator uses the same per-100g convention found on food labels, then scales it to whatever weight you enter.
If you want to see the numbers behind the tool, the sugar values are adapted from USDA FoodData Central entries for raw apples and common commercial varieties. Official entries can be explored at the USDA FoodData Central website.
Step-by-Step Guide
- Choose your variety. If you know the apple type, select it from the dropdown. If not, keep “Average apple” selected — it is a good default for mixed eating apples.
- Enter the weight. Weigh the apple on a kitchen scale in grams. No scale handy? Use 182 grams, the USDA standard for a medium apple.
- Press Calculate Sugar. The tool instantly shows sugar per 100g, total sugar for your portion, teaspoon equivalents, and calories from sugar.
- Compare with the medium-apple row. The results include a 182g reference so you can see how your apple compares with a typical serving.
Worked Example
Example: You weigh a Granny Smith apple and it comes to 210 grams.
Sugar per 100g for Granny Smith = 9.6 g.
Total sugar = 9.6 × 210 ÷ 100 = 20.2 g.
Teaspoons = 20.2 ÷ 4.2 = 4.8 tsp.
Calories from sugar = 20.2 × 4 = 81 kcal.
So a fairly large Granny Smith contributes about 20 grams of fruit sugar — comparable to roughly five teaspoons of sugar, but packaged with 3.5 grams of fiber and a high water content.
Apple Variety Sugar Reference
| Variety | Sugar per 100 g | Sugar in a 182 g medium apple |
|---|---|---|
| Average apple | 10.4 g | 18.9 g |
| Granny Smith | 9.6 g | 17.5 g |
| Gala | 10.4 g | 18.9 g |
| Golden Delicious | 11.3 g | 20.6 g |
| Red Delicious | 11.4 g | 20.7 g |
| Pink Lady | 12.4 g | 22.6 g |
| Fuji | 12.7 g | 23.1 g |
| Honeycrisp | 13.1 g | 23.8 g |
Values are rounded and based on averaged raw data. Actual apples from one orchard to the next can differ by 1–2 g per 100g depending on ripeness, season, and storage time.
Tips for Fitting Apples Into a Lower-Sugar Eating Pattern
- Choose tart, firmer varieties. Granny Smith and similar sharp apples generally contain less sugar per 100g than Honeycrisp or Fuji.
- Don't forget portion size. A very large apple can contain more total sugar than a small one even if the variety is lower in sugar.
- Keep the skin on. Apple skin is where much of the fiber and polyphenols live; the fiber helps slow the absorption of the fruit's sugar.
- Pair with protein or fat. Add a handful of almonds, a spoonful of peanut butter, or a slice of cheese to make a more balanced snack.
- Weigh once, log every time if possible. A food scale removes the guesswork and makes your nutrition tracking consistent.
Frequently Asked Questions
Are apples high in sugar compared with other fruits? A medium apple has about 19 g of sugar. By contrast, a medium banana has about 14 g of sugar, grapes around 15 g per 100g, and dried dates around 66 g per 100g. So apples sit in the moderate range for fruit, and their soluble fiber and polyphenols help blunt rapid blood sugar spikes.
Why is the sugar per 100g different for each variety? Sugar content is partly genetic. Some varieties are bred for sweetness, while tart cooking apples keep higher acid levels that mask sweetness. Ripeness, sun exposure, water availability, and cold storage also shift sugar levels by a gram or two per 100g.
Do I still need to count apple sugar if I track total carbs? Yes, because sugar is part of total carbohydrates. On a low-carb or keto plan, count all sugars from fruit, along with fiber if you use net carbs. The reference table above helps, and the apple fiber calculator can estimate the fiber side of the equation. For broader guidance on balanced eating, see the Dietary Guidelines for Americans.