Wheat flour (all-purpose) vs Split peas (cooked): which protein is cheaper?

Budget says one, calories say the other

Wheat flour (all-purpose) costs $0.012 per gram of protein against $0.022, so it saves $7.03 a week at a 100 g/day target. Split peas (cooked) answers a different question: 7.2 g of protein per 100 kcal against 2.8 g, which is what matters once calories, not dollars, are the thing you run out of first.

The amount you actually have to eat

Thirty grams of protein means 361 g of split peas (cooked), against 291 g for wheat flour (all-purpose). That is a real constraint, not a footnote: a price per gram only counts if the serving is one a person will finish. Treat split peas (cooked) as the base of a meal that other protein is added to, not as the protein itself.

What the calories cost you

Getting 30 g of protein from wheat flour (all-purpose) brings 1060 kcal with it. On a 2,000 kcal day, three servings would be most of your budget before anything else goes on the plate. That is fine when you are eating at maintenance or building, and it is the reason this food falls apart on a cut no matter how good the price per gram looks.

Two budget staples, so the tiebreak is elsewhere

Both of these sit in the cheapest third of everything we track (#3 and #6 of 25), and the difference between them is $0.30 per 30 g of protein. That is small enough that shelf life, prep time and whether you will actually eat it should decide this, not the price column.

On a cut these are not comparable

Split peas (cooked) carries 2.5x the protein per calorie that wheat flour (all-purpose) does. When you are eating at a deficit, that ratio is the whole game: the same 30 g of protein arrives with 419 kcal from one and 1060 kcal from the other. The cheaper option stops being cheaper once you count what you had to give up elsewhere to fit it in.

Compare against other foods

• Wheat flour (all-purpose) vs Oats (dry)Split peas (cooked) vs Oats (dry)
• Wheat flour (all-purpose) vs Peanut butterSplit peas (cooked) vs Peanut butter
• Wheat flour (all-purpose) vs Lentils (cooked)Split peas (cooked) vs Lentils (cooked)
• Wheat flour (all-purpose) vs Tofu (firm)Split peas (cooked) vs Tofu (firm)
• Wheat flour (all-purpose) vs Black beans (cooked)Split peas (cooked) vs Black beans (cooked)
• Wheat flour (all-purpose) vs Whey protein (1 scoop)Split peas (cooked) vs Whey protein (1 scoop)
• Wheat flour (all-purpose) vs Greek yogurt (nonfat)Split peas (cooked) vs Greek yogurt (nonfat)
• Wheat flour (all-purpose) vs Eggs (~2 large)Split peas (cooked) vs Eggs (~2 large)
• Wheat flour (all-purpose) vs Chicken breast (raw)Split peas (cooked) vs Chicken breast (raw)
• Wheat flour (all-purpose) vs Canned tuna (in water)Split peas (cooked) vs Canned tuna (in water)

Frequently asked

Which is cheaper for protein, wheat flour (all-purpose) or split peas (cooked)?

Wheat flour (all-purpose), at $0.012 per gram of protein against $0.022 for split peas (cooked) (July 2026 US grocery prices). A 30 g protein serving costs $0.35 vs $0.65.

Which has more protein per calorie, wheat flour (all-purpose) or split peas (cooked)?

Split peas (cooked), with 7.2 g protein per 100 kcal against 2.8 g for wheat flour (all-purpose), 2.5x leaner. That matters when you are cutting and calories are the binding constraint.

Which should I buy, wheat flour (all-purpose) or split peas (cooked)?

Depends on your constraint. On a tight budget with room in your calories, wheat flour (all-purpose) is cheaper per gram of protein. On a calorie-capped cut, split peas (cooked) gives you 2.5x more protein per calorie and is usually worth its $0.022/g price.