Steel-Cut Oats: Cups to Grams

1 cup of steel-cut oats weighs about 160 grams. Convert any amount instantly below.

Steel-Cut Oats conversion chart

Cups	Grams	Ounces	Tablespoons
1/8 cup	20 g	0.7 oz	2 tbsp
1/4 cup	40 g	1.4 oz	4 tbsp
1/3 cup	53.3 g	1.9 oz	5.3 tbsp
1/2 cup	80 g	2.8 oz	8 tbsp
2/3 cup	106.7 g	3.8 oz	10.7 tbsp
3/4 cup	120 g	4.2 oz	12 tbsp
1 cup	160 g	5.6 oz	16 tbsp
1 1/4 cup	200 g	7.1 oz	20 tbsp
1 1/3 cup	213.3 g	7.5 oz	21.3 tbsp
1 1/2 cup	240 g	8.5 oz	24 tbsp
1 3/4 cup	280 g	9.9 oz	28 tbsp
2 cup	320 g	11.3 oz	32 tbsp
3 cup	480 g	16.9 oz	48 tbsp

Based on 160 g per US cup. Weights vary with brand and measuring method — for precise baking, use a scale.

Grams to cups: steel-cut oats

Working backwards from a weight? Here is how common gram amounts of steel-cut oats convert to cups (at 160 g per cup).

Grams	Cups	Tablespoons	Ounces
10 g	0.06 cups	1 tbsp	0.4 oz
25 g	0.16 cups	2.5 tbsp	0.9 oz
50 g	0.31 cups	5 tbsp	1.8 oz
75 g	0.47 cups	7.5 tbsp	2.6 oz
100 g	0.63 cups	10 tbsp	3.5 oz
125 g	0.78 cups	12.5 tbsp	4.4 oz
150 g	0.94 cups	15 tbsp	5.3 oz
200 g	1.25 cups	20 tbsp	7.1 oz
250 g	1.56 cups	25 tbsp	8.8 oz
300 g	1.88 cups	30 tbsp	10.6 oz
500 g	3.13 cups	50 tbsp	17.6 oz

Measuring steel-cut oats accurately

Scoop steel-cut oats and level the cup, as the dense little pieces settle evenly with no need to pack. They measure more reliably than rolled oats, though for tuning the oats-to-liquid ratio in porridge, weighing 160g per cup gives the steadiest texture.

Is a cup of steel-cut oats 140, 160 or 176 g?

Steel-cut oats are chopped groats rather than flattened flakes, so they pour like a grain and pack far heavier than rolled oats — about 160 g per US cup here, against 90 g for rolled oats. But the published figures spread more than for any other oat product. Quaker's label serving is 1/4 cup = 40 g (160 g per cup, the figure this page and its calculator use), and Whole Foods, Publix, Harris Teeter and Market Basket print the same. King Arthur's ingredient chart lists 1/2 cup = 70 g (140 g). Arrowhead Mills and Rocky Mountain give 1/3 cup = 45 g (135 g). Bob's Red Mill's label reads 1/4 cup = 44 g (176 g). USDA's Foundation Foods entry for steel-cut oats (#2346397) lists no cup measure at all, so there is no laboratory tie-breaker. The spread is cut size — a coarser cut leaves more air between the pieces — plus label rounding to the nearest gram on a small serving, and a level cup lands somewhere in the 135–176 g band.

So a quarter cup of dry steel-cut oats is 40 g on this page (35–44 g across the labels), half a cup 80 g, and 100 g is 0.63 cups — a rounded two-thirds. If you are following a brand's own recipe, use its label figure; for anything else, weigh. Two sanity checks: a number near 90 g per cup is rolled oats, not steel-cut, and anything over about 180 g was heaped or is a 250 mL metric cup (169–186 g).

Steel-cut oats by the millilitre, rice cup and kilogram

Because steel-cut oats pour like rice, people measure them like rice. The rice-cooker cup is a Japanese go of 180 mL, three-quarters of a US cup, and holds about 121.7 g of steel-cut oats — so a 1 kg bag is about 8.21 rice cups (6.25 US cups, or 5.91 metric cups). Any millilitre figure converts at about 0.68 g/mL: 100 mL is 68 g, 250 mL is 169 g. The table shows the same measures at King Arthur's and Bob's Red Mill's cup weights so you can see how much the choice of source moves the answer — about 10% either side.

Computed from 160, 140 and 176 g per 236.588 mL. Rolled oats run 0.38 g/mL, so a millilitre figure meant for one kind of oat is wrong for the other by almost half. The volume converter handles any other cup or glass size.

Cooked steel-cut oats: what a quarter cup weighs

Cooked steel-cut porridge is mostly water, so a cooked cup weighs about what any cooked oatmeal weighs — roughly water density, 234–245 g per cup. USDA's measured cup of oatmeal cooked with water is 234 g (#173905). Bob's Red Mill's steel-cut method — 1 cup of oats (176 g by its label) to 3 cups of water, 10–20 minutes, "yields about 3 cups" — starts from 886 g in the pot and only lands at 3 cups once about 150 g has left as steam, which works out to about 245 g per cooked cup. Either way, 1/4 cup of cooked steel-cut oats is about 60 g (58.5–61.3 g), and it contains only about 14.7 g of dry oats — a rounded tablespoon and a half. Don't confuse that with 1/4 cup dry, which is 40 g and makes about three-quarters of a cup of porridge. Quaker's traditional method uses more water (1/4 cup oats to 1 1/2 cups water, simmered uncovered 25–30 minutes) and boils much of it off; it states no yield, so the 3-cups-per-cup figure above is Bob's. Cooked weight gain is about 4.2×, against 5.35× for rolled oats — the dry-to-cooked converter has every grain's factor.

Frequently asked questions

How many grams is 1 cup of steel-cut oats?

1 US cup of steel-cut oats weighs about 160 grams.

How many grams is 3/4 cup of steel-cut oats?

Three quarters of a US cup of steel-cut oats is about 120 grams (12 tablespoons).

How many grams is 2/3 cup of steel-cut oats?

2/3 of a US cup of steel-cut oats is about 106.7 grams.

How many grams is 1/2 cup of steel-cut oats?

Half a US cup of steel-cut oats is about 80 grams — half of the 160 g in a full cup.

How many grams is 1/3 cup of steel-cut oats?

A third of a US cup of steel-cut oats is about 53.3 grams.

How many grams is 1/4 cup of steel-cut oats?

A quarter US cup of steel-cut oats is about 40 grams (4 tablespoons).

How many grams is 1 tablespoon of steel-cut oats?

1 tablespoon of steel-cut oats is about 10 grams (a cup is 16 tablespoons).

How many grams is 1 1/4 cups of steel-cut oats?

1 1/4 US cups of steel-cut oats weigh about 200 grams.

How many grams is 1 1/2 cups of steel-cut oats?

1 1/2 US cups of steel-cut oats weigh about 240 grams — one full cup (160 g) plus half a cup (80 g).

How many grams is 2 cups of steel-cut oats?

2 US cups of steel-cut oats weigh about 320 grams.

How many cups is 100 grams of steel-cut oats?

100 grams of steel-cut oats is about 0.63 cups.

How many cups is 250 grams of steel-cut oats?

250 grams of steel-cut oats is about 1.56 cups (at 160 g per cup).

How many cups is 500 grams of steel-cut oats?

500 grams of steel-cut oats is about 3.13 cups.

How many grams is 1/4 cup of cooked steel-cut oats?

About 60 g. Cooked steel-cut porridge is roughly water-density: USDA weighs cooked oatmeal at 234 g per cup (58.5 g per quarter cup), and Bob's Red Mill's method — 1 cup of oats to 3 cups of water, "yields about 3 cups" — works out to about 245 g per cup (61.3 g per quarter cup) once the pot has lost some steam. That quarter cup of porridge holds only about 14.7 g of dry steel-cut oats, a rounded tablespoon and a half, so don't confuse it with 1/4 cup dry, which is 40 g and makes about 3/4 cup of porridge.

How many rice cups are in 1 kg of steel-cut oats?

About 8.21 rice-cooker cups. The cup supplied with a rice cooker is a 180 mL go, which holds about 121.7 g of steel-cut oats at this page's 160 g per US cup, so 1,000 ÷ 121.7 ≈ 8.21. With Bob's Red Mill's heavier 176 g cup it is 7.47 rice cups, and with King Arthur's 140 g it is 9.39. In US cups a kilogram is 6.25 cups, and in 250 mL metric cups 5.91.

How do I convert millilitres of steel-cut oats to grams?

Multiply by about 0.68: a US cup of 236.6 mL holds 160 g, so steel-cut oats run 0.68 g/mL — 100 mL is 68 g, 250 mL is 169 g and 500 mL is 338 g. The other published cup weights give 0.59 g/mL (King Arthur, 140 g) to 0.74 g/mL (Bob's Red Mill, 176 g). Rolled oats are far lighter at 0.38 g/mL, so a millilitre figure meant for one is wrong for the other by almost half.

Is a cup of steel-cut oats 140, 160 or 176 grams?

All three are printed by reputable sources, and they are all cut-size and rounding, not errors. Quaker's label (1/4 cup = 40 g) and most store brands give 160 g per cup — the figure this page uses; King Arthur's chart lists 1/2 cup = 70 g (140 g); Bob's Red Mill prints 1/4 cup = 44 g (176 g); Arrowhead Mills gives 1/3 cup = 45 g (135 g). USDA's Foundation Foods entry for steel-cut oats lists no cup measure, so there is no laboratory tie-breaker. Following a brand's own recipe, use its label figure; for anything else, weigh — the 41 g spread across a cup is a fifth of the oats.

How much cooked oatmeal does 1 cup of steel-cut oats make?

About 3 cups. Bob's Red Mill's directions are 1 cup of steel-cut oats to 3 cups of water and 1/2 tsp salt, 10–20 minutes, "yields about 3 cups" for 4 servings. By weight a cup of dry steel-cut oats (160 g) becomes roughly 668.2 g of porridge — a gain of about 4.2×, less than rolled oats' 5.35× because steel-cut is cooked with less water per gram. Quaker's traditional method (1/4 cup oats to 1 1/2 cups water, simmered uncovered 25–30 minutes) boils much of its water off and states no yield. The <a href="/dry-to-cooked/">dry-to-cooked converter</a> covers the other grains.

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