Artichokes are a low-calorie, fiber-rich vegetable that fits easily into salads, pastas, and sheet-pan meals — but their serving sizes are awkward to judge. A whole artichoke looks nothing like a cup or a handful, and recipes often call for “slices” without specifying thickness. This calculator converts your artichoke amount and preparation method into a clear calories-per-slice figure, plus total calories and per-100g values.
It works for plain steamed or boiled artichokes, raw slices, roasted pieces, canned water-pack hearts, and oil-packed marinated artichokes. Enter an approximate edible weight (or a medium whole artichoke), choose the preparation that matches yours, and set how many slices you plan to cut. The tool then breaks the math down step by step, so you can adjust the result for your own portion and trust it during meal prep.
All values are estimates based on standard nutrition data; whole foods vary naturally, and added oil can change the total significantly.
📊 Artichoke Amount
🍳 Preparation
Calories are approximate and based on common USDA nutrition values.
Slice It
How to Use This Tool
This calculator is designed for people who portion artichokes by looks rather than by weighing every leaf. Start by choosing the amount unit that is easiest for you:
- If you have a kitchen scale, use grams or ounces of the part you will actually eat — leaf bases, hearts, and trimmed pieces.
- If you are working from a single vegetable, select medium whole artichokes; the tool uses about 120 g of edible-equivalent artichoke per vegetable, a common serving-size assumption.
- Pick the preparation that matches how the artichoke is cooked or packaged.
- Enter the number of slices you intend to cut from the total amount, then press Calculate Calories.
The results panel shows total calories, calories per slice, calories per 100 g, and calories per gram, followed by a short step-by-step breakdown so you can see exactly how the number was produced.
How the Calories Are Calculated
The calculator uses a simple two-step formula. First, convert the artichoke amount to grams: 1 oz = 28.35 g, and one medium whole artichoke counts as 120 g of edible-equivalent artichoke. Second, multiply the gram weight by the calorie density of the preparation (kcal per 100 g) and divide by 100 to get total calories. Finally, divide total calories by the number of slices to get calories per slice.
For example, 100 g of boiled artichoke at 51 kcal per 100 g gives 51 kcal total. Cut into 8 equal slices, each slice provides about 6.4 kcal. The same 100 g of marinated artichoke at 105 kcal per 100 g gives 105 kcal total, or about 13.1 kcal per slice.
The calorie densities used here are rounded from commonly cited nutrition information. For detailed listings, the USDA FoodData Central is a reliable public reference for artichoke and other food profiles.
Artichoke Calorie Reference Table
These values can help you estimate before using the calculator. A medium artichoke is treated as 120 g of edible portion.
| Preparation | kcal per 100 g | kcal per medium artichoke | kcal per slice (8 per artichoke) |
|---|---|---|---|
| Raw | 47 | 56.4 | 7.1 |
| Plain cooked (boiled/steamed) | 51 | 61.2 | 7.7 |
| Canned water pack, drained | 38 | 45.6 | 5.7 |
| Roasted with olive oil | ≈85 | ≈102 | ≈12.8 |
| Marinated / oil-packed | ≈105 | ≈126 | ≈15.8 |
Roasted and marinated values are estimates because the amount of oil absorbed varies widely by recipe.
Why Preparation Matters
Artichokes themselves are very low in fat — plain cooked artichoke has under 1 g of fat per 100 g. The calories can jump quickly once oil enters the picture. Roasting or sautéing artichokes in olive oil adds about 9 kcal per gram of oil, and a single tablespoon of olive oil adds roughly 119 kcal. Marinated artichoke hearts are packed in oil-based dressing, so they are noticeably more calorie-dense than boiled artichokes even though the vegetable itself is the same.
Common Mistakes to Avoid
- Using whole unpeeled artichoke weight as if it were all edible. The tough outer leaves and choke can make up a large share of the raw weight. Weigh only the parts you will consume.
- Forgetting to count oil roasted into the artichoke or oil in marinated hearts. This can easily double or triple the calories.
- Assuming every slice is equal. If some slices are thicker, the calories per slice will vary. Cut evenly if you care about portion accuracy.
- Choosing canned values for marinated products without checking the label. Canned water-pack and oil-packed artichokes are very different.
Frequently Asked Questions
Are artichoke hearts more caloric than the leaves?
Not by much per gram. The heart and leaf bases have similar moisture and carbohydrate content. The big calorie differences come from preparation, not from the part you eat.
Does boiling change the calorie count?
Boiling or steaming without added fat adds negligible calories. It can change weight by absorbing water, so it is better to weigh cooked artichoke after draining when calculating your portion.
Is this calculator accurate enough for calorie tracking?
It provides a good planning estimate for home cooking and diet tracking. For conditions where precise nutrition matters, use lab-verified packaged data if available, or consult a registered dietitian.
Can I use it for frozen artichokes?
Frozen cooked artichoke hearts have a calorie density close to plain cooked artichoke — about 44 kcal per 100 g. Pick the canned/water-pack option as a rough approximation.