Nectarines are a beloved summer fruit, prized for their sweet, juicy flesh and smooth skin. But if you're tracking sugar intake for diabetes management, low-carb diets, or general health, you might wonder exactly how much sugar is in that serving. Our Nectarine Sugar Per 100g Calculator takes the guesswork out of it.
Simply enter the weight of your nectarine (or the amount you plan to eat) and choose your preferred unit — grams, ounces, or whole fruit. The calculator instantly estimates the total sugar content, along with a breakdown of natural sugars (fructose, glucose, and sucrose) and a comparison to common daily sugar limits. Whether you're meal planning, counting macros, or just curious, this tool gives you accurate, actionable numbers in seconds.
Perfect for nutritionists, dietitians, fitness enthusiasts, and anyone who wants to enjoy nectarines mindfully. No more guessing — get precise sugar data tailored to your portion size.
🍑 Nectarine Sugar Calculator
Leave blank to skip the percentage comparison.
How to Use This Tool
Using the nectarine sugar calculator is straightforward. Start by entering the amount of nectarine you plan to eat. You can specify the amount in grams, ounces, or as whole fruits. If you choose "whole fruit," the calculator uses an average weight of 142 grams per medium nectarine — a common reference from USDA food composition databases. For more precision, weigh your nectarine on a kitchen scale and enter the weight in grams.
Next, optionally enter your daily sugar limit. This could be the recommended limit from organizations like the American Heart Association (36 g for men, 25 g for women) or a personal target from your diet plan. The calculator will then show what percentage of that limit your nectarine portion represents. This is especially useful for people with diabetes or those following low-sugar diets.
Finally, click the "Calculate Sugar" button. The results will display the total sugar content, a breakdown of individual sugars (fructose, glucose, sucrose), and the percentage of your daily limit. Use the quick-fill buttons for common portion sizes to save time.
How It Works
The calculator uses the USDA National Nutrient Database value for raw nectarines: approximately 8.9 grams of sugar per 100 grams of edible flesh. This is the average across all varieties, including yellow-fleshed and white-fleshed nectarines. The sugar content can vary slightly depending on ripeness and growing conditions, but 8.9 g/100g is a reliable benchmark.
To calculate the sugar in your portion, the calculator first converts your input to grams. If you enter ounces, it multiplies by 28.3495 (the number of grams in an ounce). If you enter whole fruits, it multiplies by the average fruit weight of 142 grams. Then it applies the sugar density: sugar = (grams / 100) × 8.9.
The breakdown of individual sugars is based on typical proportions in stone fruits: about 40% fructose, 35% glucose, and 25% sucrose. These proportions are approximate but give a useful picture of the glycemic impact. Fructose has a lower glycemic index than glucose, but all sugars contribute to total carbohydrate intake.
Worked Examples
Example 1: You eat one medium nectarine (142 g). The calculator computes: (142 / 100) × 8.9 = 12.6 g of sugar. That's about 2.5 teaspoons of sugar. If your daily limit is 25 g, this nectarine uses up 50% of your allowance.
Example 2: You have a fruit salad with 200 g of sliced nectarines. Sugar = (200 / 100) × 8.9 = 17.8 g. That's roughly 4.2 teaspoons. Compared to a 36 g daily limit, that's 49% of your daily sugar budget.
Example 3: You're tracking in ounces and eat 5 oz of nectarines. First convert: 5 × 28.3495 = 141.7 g. Then sugar = (141.7 / 100) × 8.9 = 12.6 g — nearly identical to one medium fruit.
Tips & Best Practices
- Weigh for accuracy: If you're tracking macros or managing diabetes, use a kitchen scale. Visual estimates can be off by 20-30%.
- Consider ripeness: Riper nectarines have slightly higher sugar content. The USDA value is an average, so your fruit may differ.
- Pair with protein or fat: Eating nectarines with yogurt, nuts, or cheese can slow sugar absorption and help stabilize blood sugar.
- Watch portion size: It's easy to eat two or three nectarines in one sitting. Use the calculator to see how quickly sugar adds up.
- Compare with other fruits: Nectarines are moderate in sugar compared to grapes (16 g/100g) or bananas (12 g/100g), but higher than berries (5-7 g/100g).
Factors Affecting Accuracy
The sugar content of nectarines can vary due to several factors. Variety plays a role: white-fleshed nectarines tend to be slightly sweeter than yellow-fleshed ones. Growing conditions, such as sunlight and water, also affect sugar accumulation. Storage time after harvest can increase sugar as starches convert to sugars. The USDA database value is a composite average, so individual fruits may deviate by ±1-2 grams per 100g.
Additionally, the average fruit weight of 142 g is just that — an average. Small nectarines might weigh 100 g, while large ones can exceed 180 g. If you're using the "whole fruit" option, be aware that your fruit may differ. For the most accurate results, weigh your fruit and enter the weight in grams.
Frequently Asked Questions
Are nectarines high in sugar?
Compared to many fruits, nectarines are moderate. They contain about 8.9 g of sugar per 100 g, which is less than grapes (16 g), cherries (13 g), and mangoes (14 g), but more than strawberries (4.9 g) or raspberries (4.4 g). A medium nectarine has about 12.6 g of sugar, which is roughly 2.5 teaspoons.
Can I eat nectarines on a low-carb diet?
Yes, in moderation. A medium nectarine has about 15 g of total carbs, of which 12.6 g are sugars. If you're on a strict keto diet (under 20 g carbs/day), you'd need to plan carefully. On a more moderate low-carb diet (50-100 g/day), one nectarine can fit.
Do nectarines have added sugar?
No, the sugar in fresh nectarines is naturally occurring. However, canned nectarines in syrup or dried nectarines may have added sugar. Always check labels.
How does nectarine sugar compare to peach sugar?
Nectarines and peaches are very similar nutritionally. Both have about 8-9 g of sugar per 100 g. The main difference is the skin: nectarines have smooth skin, while peaches have fuzzy skin. For sugar purposes, they're interchangeable.
Additional Resources
For more detailed nutritional data, you can consult the USDA FoodData Central, which provides comprehensive nutrient profiles for thousands of foods. The American Heart Association offers guidance on recommended sugar limits. For general fruit nutrition information, the USDA Nutrition.gov is a reliable source.