Kale is a nutrient-dense leafy green, but its carbohydrate count depends on how you measure it and how it is prepared. This kale carb calculator estimates total carbs, dietary fiber, net carbs, and sugars for a given serving size of raw, boiled, or frozen kale. Enter a weight or choose a cup measure, then get an instant nutrition snapshot.
The numbers follow typical USDA FoodData Central values (about 4.4 g total carbs and 3.6 g fiber per 100 g raw kale), so you can use the results for keto macros, low-carb meal planning, or general calorie tracking. Because fiber is not digested like other carbs, most low-carb eaters subtract it to get net carbs.
Quick-set buttons cover common servings such as 1 cup raw, 2 cups raw, 1 cup cooked, and 100 g raw. You can also type an exact gram or ounce amount for recipe scaling and meal prep.
🥬 Kale Carb Calculator
📊 Nutrition Results
How to Use This Calculator
Start by typing a serving amount in the first field, then choose the unit that matches how you measure kale: grams, ounces, a US cup of chopped raw leaves, or a US cup of cooked and drained kale. Next, pick the preparation method — raw, boiled, or frozen — because cooking changes both the water content and the fiber ratio of the leaves. Press Calculate Carbs and the result card shows total carbohydrates, dietary fiber, net carbs, sugars, the serving weight in grams, and the share of a 275 g daily carbohydrate target.
Quick-set buttons cover the most common servings used in meal plans: 1 cup raw, 2 cups raw, 1 cup cooked, and 100 g raw. After a preset is applied, you can still edit the amount field if your portion differs slightly, then recalculate.
Tip: Kale shrinks dramatically when cooked. If your recipe calls for "1 cup cooked kale," use the cooked cup option rather than cooking a raw cup and estimating the result.
How the Carb Count Is Estimated
The calculator applies per-100-gram nutrition values derived from USDA FoodData Central averages. For a given serving, it converts everything to grams and multiplies by the values for the selected preparation:
- Raw kale: 4.4 g total carbs, 3.6 g fiber, 1.0 g sugar per 100 g.
- Boiled, drained kale: 5.6 g total carbs, 2.3 g fiber, 1.4 g sugar per 100 g.
- Frozen, unprepared kale: 5.4 g total carbs, 2.0 g fiber, 1.2 g sugar per 100 g.
Net carbs are calculated as total carbs minus fiber, since fiber passes through the digestive tract largely undigested. The reference data comes from the USDA FoodData Central database, which is also the standard source behind most commercial nutrition trackers.
Worked Example
You add 2 cups of raw chopped kale to a smoothie. Raw kale weighs about 67 g per US cup, so 2 cups weigh about 134 g. Using the raw values per 100 g:
- Total carbs: 134 ÷ 100 × 4.4 = 5.9 g
- Fiber: 134 ÷ 100 × 3.6 = 4.8 g
- Net carbs: 5.9 − 4.8 = 1.1 g
That tiny net-carb figure is why kale is a staple of low-carb and keto meal plans.
Reference: Cup Weights and Serving Context
| Measure | Approx. weight | Net carbs (raw) |
|---|---|---|
| 1 cup chopped raw kale | 67 g | 0.5 g |
| 1 cup cooked kale (boiled, drained) | 130 g | 4.3 g |
| 100 g raw kale | 100 g | 0.8 g |
The 275 g daily carbohydrate reference used in the results corresponds to a 2,000-calorie diet with roughly 55% of calories from carbohydrates, a typical balanced macro split. If your plan uses a different target — 20 g on strict keto, 325 g for an endurance athlete — compare the Share of daily carbs row against your own number instead.
Tips & Best Practices
- Weigh for accuracy. Cup measures of leafy greens are loose approximations; a digital scale gives reproducible results, especially when meal-prepping.
- Trim thick stems before weighing if you plan to eat only the leaves, since stems add weight and fiber without much carbohydrate.
- Chop and lightly pack cup measures. Whole leaves trap air and make measurements inconsistent between one kitchen and another.
- Weigh frozen kale thawed and drained. Frozen kale can clump and carry ice crystals, which would overestimate the true serving weight.
Factors Affecting Accuracy
Kale is a whole food, so its carbohydrate content varies with variety, growing conditions, and harvest time. The values used here are averages across common varieties; your bunch may differ by 10–20%. Cooking method matters too: boiling drains some sugars into the cooking water, while steaming and sautéing retain slightly more. The boiled values in this tool reflect kale that is boiled and drained, the most common preparation.
Frequently Asked Questions
Is kale a low-carb vegetable? Yes. A large 2-cup raw salad contains roughly 1–2 g of net carbs, putting kale alongside spinach and Swiss chard among the lowest-carb leafy greens.
Does cooking change the net carbs? Cooking removes water and concentrates nutrients by weight, so 1 cup of cooked kale has more carbs than 1 cup of raw kale. Per 100 g, boiled kale also has slightly more total carbs because the leaves are denser.
Why don't my numbers match a food label? Labels often describe a single product lot or use rounded values, while this tool uses whole-food averages. Expect small differences and treat the result as an estimate, not a laboratory value.
Is the sugar content worth tracking? Kale contains only about 1 g of sugar per 100 g raw, so it rarely moves the needle unless you eat very large servings. The main value of this tool is separating total carbs from fiber to get a practical net-carb number.