Wikipedia lists homemade falafel at 333 kilocalories per 100 grams.
That figure comes from a nutrition entry for home-prepared falafel rather than from every possible falafel recipe. The reference amount is 100 grams, allowing the food to be compared with other ingredients and dishes using the same standard serving weight. A typical 100-gram portion is listed at roughly 35% water, 32% carbohydrates, 13% protein, and 18% fat.
The calorie value reflects the ingredients and cooking method represented in the database sample. Falafel is commonly made from ground chickpeas, fava beans, or both, combined with herbs and spices. Deep-frying adds absorbed oil, which is why fried falafel is substantially more energy-dense than the uncooked legume mixture.
The number should not be treated as a universal value for every homemade batch. Oil absorption, patty size, bean-to-chickpea ratios, and baking versus frying can all change the result. The figure also applies to the falafel itself, not a complete pita sandwich with tahini, pickles, vegetables, or sauces. Those additions can significantly raise the meal’s total calories.