Cashews are a popular snack and pantry staple, but their carbohydrate content is often misunderstood. This Cashew Carbs Per 100g Calculator uses standard USDA nutrition data for raw cashews — 30.19 g of total carbohydrate, 3.3 g of fiber, and 5.91 g of sugars per 100 g — to quickly estimate the carbs in any serving you actually eat.
Enter your serving size in grams, ounces, cups, or handfuls, and the tool converts it to total carbs, fiber, sugar, and net-carb values. It is especially useful for people tracking carbs for low-carb, ketogenic, or general health meal plans, as well as for dietitians and home cooks who want a fast, reliable portion check. A net-carbs option and a custom label override make the results flexible enough for your specific goals.
🥜 Serving Size
📊 Results
How to Use This Tool
Start by entering your serving size in the amount field and choosing the matching unit from the dropdown — grams, ounces, cups, or handfuls. If you have a food scale, weighing your cashews in grams gives the most accurate result, since cup and handful estimates vary with piece size and packing. Then press Calculate Carbs and the tool instantly reports total carbs, net carbs, fiber, and sugar for your exact portion.
The quick-fill buttons are handy shortcuts for common servings: a 30 g (roughly 1 oz) snack, a single handful, a full cup, or the standard 100 g reference amount. Just click one and it fills the amount and unit for you. By default the calculator uses average USDA values for raw cashews (30.19 g total carbs, 3.3 g fiber, and 5.91 g sugars per 100 g). If your cashews are honey-roasted, coated, or from a brand with a different nutrition label, uncheck "Use standard USDA values" and type the label's carb value per 100 g into the field that appears — the tool will then base every calculation on your custom number.
The Math Behind It
All nutrition values scale linearly from the 100 g reference data, so the calculation is straightforward. The core formula for each nutrient is:
For example, to find the total carbs in a 45 g serving: 45 × 30.19 ÷ 100 = 13.6 g. The same formula is applied to fiber and sugar. Net carbs are then calculated by subtracting fiber from total carbs, because fiber is not digested and absorbed like other carbohydrates — this is the figure most low-carb and keto trackers use.
Worked Examples
Example 1 — one cup (137 g) of raw cashews.
Total carbs = 137 × 30.19 ÷ 100 = 41.4 g
Fiber = 137 × 3.3 ÷ 100 = 4.5 g
Sugars = 137 × 5.91 ÷ 100 = 8.1 g
Net carbs = 41.4 − 4.5 = 36.9 g
Example 2 — a 1 oz (28.35 g) snack.
Total carbs = 28.35 × 30.19 ÷ 100 = 8.6 g
Fiber = 28.35 × 3.3 ÷ 100 = 0.9 g
Net carbs = 8.6 − 0.9 = 7.6 g
These two examples show how the same nut can contribute very different carb amounts depending on portion size — which is exactly why weighing and tracking the serving you actually eat matters more than memorizing a single "carbs in cashews" number.
Standard Values per 100 g
The table below lists the standard reference values used by the calculator when the USDA option is selected. These figures come from USDA FoodData Central for raw, unsalted cashew nuts.
| Nutrient | Amount per 100 g |
|---|---|
| Total carbohydrate | 30.19 g |
| Dietary fiber | 3.3 g |
| Sugars | 5.91 g |
| Net carbs (calculated) | 26.89 g |
| Energy | 553 kcal |
| Fat | 43.85 g |
| Protein | 18.22 g |
Keep in mind that these are averages. Different growing regions, cultivars, and processing methods can shift the carbohydrate content by a gram or two per 100 g, so the custom-carb option lets you match your specific product when you have a label in hand.
Common Mistakes to Avoid
Using drained or cooked weights. The USDA reference values are for raw cashews as sold. If you use cashews in a cooked dish, they may absorb some water, which changes the weight per portion — weigh them separately if accuracy matters.
Assuming all cashew products are the same. Honey-roasted, chocolate-covered, curry-spiced, and teriyaki cashews often contain added sugar and starch. A coated product can easily exceed 40 g of carbs per 100 g. Always check the package label and use the custom carb field for these products.
Mixing up cups and handfuls. A cupped handful of whole cashews is roughly 25–30 g, but a heaped handful can be 40 g or more. If you are logging strictly, use grams rather than volume-based estimates.
Frequently Asked Questions
Are cashews keto-friendly? A 28 g handful provides about 7.6 g of net carbs. On a strict 20 g daily limit, that is a substantial slice of your budget, so cashews are best eaten in small, planned portions or swapped for lower-carb nuts like pecans or macadamias.
Do roasted or salted cashews change the numbers? Plain dry-roasted or oil-roasted cashews are nutritionally very similar to raw ones — the carb difference is usually under 1 g per 100 g. The bigger changes come from sweet or flavored coatings, which is where the custom label option becomes important.
Why does the tool also show net carbs? Many low-carb diets subtract fiber from total carbs because fiber passes through the digestive tract largely undigested and does not raise blood glucose the way sugars and starches do. Net carbs = total carbs − fiber gives you the figure used by most keto and diabetic meal-planning approaches.
Where does the nutrition data come from? The default values are sourced from the U.S. Department of Agriculture's FoodData Central database for raw cashew nuts. You can look up the full nutrient profile there for more details.