A typical 1 cup cooked serving of cream of rice contains 2.2 grams of protein (0.9 g per 100 g), which makes it only a minor source of protein. That covers roughly 4% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Only about 7% of the calories in cream of rice come from protein, so it is more of an energy food than a protein food. It is worth eating for other reasons; the protein it adds to a day is incidental.
Among the 111 grains in the database, cream of rice ranks 103rd by protein per serving, and 641st out of all 796 foods on the site. Set against dinner roll, another grain entry in the database, a serving carries about 0.5 g less protein (dinner roll has 2.7 g per 1 roll).
It is an incomplete protein on its own; pairing it with other plant foods across the day covers the full range of essential amino acids. The serving above is measured by volume at 244 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #173914 - "Cereals, CREAM OF RICE, cooked with water, with salt" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Cream of rice protein FAQ
How much protein is in cream of rice per 100 g?
Cream of rice has 0.9 g of protein per 100 g. A typical 1 cup cooked serving (244 g) provides 2.2 g.
Is cream of rice a complete protein?
No. Cream of rice is an incomplete protein on its own; pairing it with other protein sources across the day covers the full range of essential amino acids.
How much of the Daily Value does a serving of cream of rice cover?
A 1 cup cooked serving of cream of rice contains 2.2 g of protein, about 4% of the 50 g reference Daily Value.
Is cream of rice a good source of protein?
Cream of rice is only a minor source of protein, and about 7% of its calories come from protein, which makes it more of an energy food than a protein food. Set against dinner roll, another grain entry in the database, a serving carries about 0.5 g less protein (dinner roll has 2.7 g per 1 roll).