Every 100 kcal of all-purpose flour brings 2.8 g of protein. On that measure it ranks 73rd of the 111 grains in this database and 635th of all 796 foods on the site. Measured by weight instead, its 10.3 g per 100 g ranks 38th in its group.
Only about 11% of the calories in all-purpose flour 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.
Weight for weight, all-purpose flour has 10.5 g of protein for each gram of fat (10.3 g against 0.98 g per 100 g).
Set against dinner roll, another grain entry in the database, a serving carries about 0.5 g more 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 quoted here is measured by volume at 31.3 g, and it covers about 6% of the 50 g FDA Daily Value for protein.
Serving sizes
Protein in common portions of all-purpose flour
Protein and calories in All-purpose flour for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
10.3 g
364 kcal
1/4 cup (serving used here)
31.3 g
3.2 g
114 kcal
1 cup
125 g
12.9 g
455 kcal
Portion weights are the household measures listed on the USDA record; protein and calories scale from the per-100 g figures.
Amino acids
Essential amino acids in all-purpose flour
The nine essential amino acids in All-purpose flour, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
0.71 g
0.22 g
69
lysine
0.228 g
0.07 g
22
valine
0.415 g
0.13 g
40
isoleucine
0.357 g
0.11 g
35
threonine
0.281 g
0.09 g
27
phenylalanine
0.52 g
0.16 g
50
methionine
0.183 g
0.06 g
18
histidine
0.23 g
0.07 g
22
tryptophan
0.127 g
0.04 g
12
Per-100 g values are the amino acid analysis on the USDA record. The serving and per-gram-of-protein columns are arithmetic on those values; they are not a protein quality score.
SampleWhat goal trends look like after a week
109 g
Average per logged day
4 of 7
Days goal met
71%
Complete-protein share
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Sample figures for one made-up week against a 110 g goal, not your data. Red bars met the goal. Your own log fills this in with Premium.
Related
Other grains by protein per calorie
Swap for more protein per calorie
Raisin bread - 2.9 g per 100 kcal, 2.1 g per 1 slice
Millet - 2.9 g per 100 kcal, 6.1 g per 1 cup cooked
Cream of wheat - 3 g per 100 kcal, 4.4 g per 1 cup cooked
Closest in protein per calorie
Millet flour - 2.8 g per 100 kcal, 3.2 g per 1/4 cup
How much protein is in 100 g of all-purpose flour?
10.3 g. The 1/4 cup serving used on this page weighs 31.3 g and so carries 3.2 g.
How much protein do you get per 100 calories of all-purpose flour?
2.8 g. That figure divides its 10.3 g of protein per 100 g by its 364 kcal per 100 g, so it does not depend on serving size.
Is the protein in all-purpose flour complete?
No. On its own, the protein in all-purpose flour is short of at least one essential amino acid; other protein sources across the day fill the gap.
What share of the protein Daily Value is one serving of all-purpose flour?
About 6%. One 1/4 cup serving has 3.2 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #168894 (Wheat flour, white, all-purpose, enriched, bleached), SR Legacy data. USDA data is in the public domain. Values are the published reference figures for that record, not lab measurements for a specific brand or batch.