A typical 1/4 cup serving of whole wheat flour contains 4 grams of protein (13.2 g per 100 g), which makes it a moderate source of protein. That covers roughly 8% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Around 16% of the calories in whole wheat flour come from protein, so it is more of an energy food than a protein food. It contributes to a day's protein total, but the bulk of what it delivers is energy rather than amino acids - treat it as a contributor alongside a denser source, not as the protein in a meal.
Among the 111 grains in the database, whole wheat flour ranks 59th by protein per serving, and 538th out of all 796 foods on the site. Set against barley, another grain entry in the database, a serving carries about 0.5 g more protein (barley has 3.5 g per 1 cup cooked).
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 30 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Keeps the bran and germ, so more protein than white flour.
Source: USDA FoodData Central #168893 - "Wheat flour, whole-grain (Includes foods for USDA's Food Distribution Program)" (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
Whole wheat flour protein FAQ
How much protein is in whole wheat flour per 100 g?
Whole wheat flour has 13.2 g of protein per 100 g. A typical 1/4 cup serving (30 g) provides 4 g.
Is whole wheat flour a complete protein?
No. Whole wheat flour 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 whole wheat flour cover?
A 1/4 cup serving of whole wheat flour contains 4 g of protein, about 8% of the 50 g reference Daily Value.
Is whole wheat flour a good source of protein?
Whole wheat flour is a moderate source of protein, and about 16% of its calories come from protein, which makes it more of an energy food than a protein food. Set against barley, another grain entry in the database, a serving carries about 0.5 g more protein (barley has 3.5 g per 1 cup cooked).