Calories in rice cakes

Brown rice, plain, unsalted. 387 kcal (1,619 kJ) per 100 g. Choose a portion below and every figure on the page updates.

Plain brown rice cakes are puffed whole-grain rice pressed into discs, with almost no water left. That makes them energy-dense by weight, at 387 kcal (1619 kJ) per 100 g, but each cake weighs only about 9 g. Nearly all the energy comes from starch, with little fat and modest amounts of protein and fibre.

Where the energy comes from

Share of total energy contributed by each macronutrient, using the standard 4/4/9 kcal per gram factors:

Things worth knowing

• One rice cake (9 g) has 35 kcal / 146 kJ and two have 70 kcal / 291 kJ, so toppings such as peanut butter or avocado often contribute more than the cakes.
• Per 100 g rice cakes match air-popped popcorn exactly (387 kcal), but popcorn has more than three times the fibre (14.5 g vs 4.2 g).
• The low per-piece figure reflects lightness, not low energy density: gram for gram, rice cakes have slightly more energy than dry rolled oats (379 kcal per 100 g).
• Brown rice cakes are rich in manganese: one cake gives about 0.34 mg, around 15% of the 2.3 mg Daily Value.

Converting these figures

One 1 rice cake of rice cakes is 35 kcal, which is 146 kJ. To convert any other figure, divide kilojoules by 4.184 for calories, or use the converter on the home page.

It takes 62 g of rice cakes to reach 1,000 kJ (239 kcal). See how that compares with other foods on the 1000 kJ to calories page.