Collard greens are a nutritional powerhouse and a staple in Southern, soul food, and plant-forward cooking. A big bowl of boiled collards is remarkably low in calories and rich in fiber, vitamins A, C, and K, plus calcium and folate. But the calorie count can climb quickly once you add olive oil, butter, bacon drippings, or a ham hock to the pot. This calculator helps you see the difference between the greens themselves and the fat-rich additions.
Use the amount and unit selectors to enter cups, grams, or ounces, then choose whether your collards are raw, boiled/drained, or frozen and cooked. The tool converts everything to grams and applies standard USDA per-100g values for calories, protein, carbs, fiber, and fat. Two optional fields add olive oil or butter in tablespoons so the total reflects how you actually cook them.
The result area gives you a clean calorie total, a step-by-step calorie breakdown, and a macro summary including net carbs. Quick-fill buttons let you instantly add common portions like 1 cup raw or 4 oz frozen. This calculator is ideal for calorie counters, low-carb and keto meal planners, and anyone trying to eat more greens without guessing.
🥬 Collard Calorie Calculator
Estimate the calories, net carbs, protein, fiber, and fat in a serving of collard greens based on your amount, preparation, and optional add-ins.
📊 Results
Step-by-Step Guide
Start by entering the amount of collard greens you plan to eat in the Amount field. You can use decimals for fractions of a cup or half portions. Next, choose the unit that matches how you are measuring: cup raw chopped, cup cooked, grams, or ounces. The calculator uses standard volume-to-weight estimates: 1 cup raw chopped collards weighs about 36 grams, while 1 cup cooked chopped collards weighs about 190 grams because cooked greens absorb less air and hold more water weight.
Select the preparation method that best matches your food: raw, boiled/drained with no added fat, or frozen and boiled/drained. The per-100g calorie and macronutrient values differ slightly between these forms. If you cook with olive oil or butter, enter how many tablespoons you added to your whole batch, or how many tablespoons you ate as part of the serving. Then click Calculate. The result panel shows the serving mass, a calorie breakdown, and a macro summary including net carbs.
How It Works
The calorie estimate is built from a simple proportion: calories from collards = serving weight in grams × (kcal per 100 g ÷ 100). The tool first multiplies your amount by the weight of the selected unit, then applies the nutrient values for the preparation method you chose. These values are rounded from the USDA FoodData Central nutrient database, with raw collards at 32 kcal per 100 g, boiled/drained collards at 33 kcal per 100 g, and frozen boiled collards at 37 kcal per 100 g.
Macronutrients follow the same method. Protein, carbohydrates, fiber, and fat are all scaled from the same per-100g basis. Net carbs are then calculated as total carbohydrate minus fiber, which is useful for low-carb and keto meal planning. Olive oil and butter are handled separately because they add concentrated calories and fat without meaningful carbohydrate. One tablespoon of olive oil adds about 119 kcal and 13.5 g fat; one tablespoon of butter adds about 102 kcal and 11.5 g fat.
Worked Examples
Example 1: 1 cup boiled collards, no added fat. Cooked collards weigh about 190 g per cup. 190 × (33 ÷ 100) = 62.7 kcal. The macros are roughly 5.1 g protein, 10.6 g carbs, 7.2 g fiber, 3.4 g net carbs, and 1.0 g fat.
Example 2: 100 g raw collards + 1 tbsp olive oil. Raw collards provide 32 kcal, 3.0 g protein, 5.6 g carbs, 4.0 g fiber, and 0.6 g fat. Adding one tablespoon of olive oil brings the total to about 151 kcal and pushes fat to 14.1 g, while net carbs stay at 1.6 g.
Example 3: 2 cups cooked collards + 1 tbsp butter. Two cups of cooked collards weigh about 380 g, giving 125.4 kcal from the greens. Butter adds 102 kcal, for a total of 227.4 kcal. Net carbs remain around 6.8 g if onion, sugar, or cornmeal are not added.
Reference Table
The table below shows approximate USDA values per 100 g for the three preparation options used in this calculator. Values are rounded and can vary by variety, season, and growing conditions.
| Preparation | kcal / 100 g | Protein | Carbs | Fiber | Fat |
|---|---|---|---|---|---|
| Raw, chopped | 32 | 3.0 g | 5.6 g | 4.0 g | 0.6 g |
| Boiled, drained (no fat added) | 33 | 2.7 g | 5.6 g | 3.8 g | 0.5 g |
| Frozen, chopped, boiled/drained | 37 | 2.7 g | 6.2 g | 3.0 g | 0.5 g |
Common cup weights: 1 cup raw chopped collards is about 36 g, and 1 cup cooked chopped collards is about 190 g. Because the raw cup is much lighter, it produces far fewer calories even though the per-100g values are close.
Tips & Best Practices
- Weigh collards on a kitchen scale if you are tracking calories closely. Volume measures are convenient, but cup weights vary with chopping size, leaf thickness, and how tightly you pack the cup.
- Measure after cooking whenever possible. The weight of collards changes dramatically when water is released, so a cooked cup is not equivalent to a raw cup.
- Remember that added fat is usually the main calorie variable. A tablespoon of oil or butter changes the total more than doubling the greens.
- Salt, pepper, hot sauce, vinegar, garlic powder, and most dried spices do not add meaningful calories, so they can be ignored.
- If your recipe uses bacon, smoked turkey, ham hock, or beef stock, add those calories separately. Even a small ham hock can contribute 60–120 kcal to a serving of pot liquor and greens.
Frequently Asked Questions
Does salt add calories? No. Salt, pepper, vinegar, and hot sauce add negligible calories. The calculator assumes no added sugar or flour in the pot.
Are collard greens keto-friendly? Yes, especially when boiled. A 190 g cooked serving contains roughly 3.4 g net carbs (7.2 g fiber and 10.6 g total carbs) before any added flour or sugar. Be cautious with sweetened vinegar or cornmeal-thickened pot liquor.
Why are frozen collards listed separately? Frozen chopped collards often have a slightly higher calorie and carbohydrate value per 100 g because commercial processing can change moisture content and includes only the trimmed leaf. The difference is small, but the separate option improves accuracy.
Where can I verify the nutrient data? The values are based on the USDA FoodData Central database. Search for “collards” to see detailed entries for raw, cooked, and frozen forms. If you want to compare with another leafy green, try our kale calorie calculator or bok choy calorie calculator.