Cooking converter · USDA gram weights

White Rice Flour Cups to Grams

Quick answer

1 cup of white rice flour weighs 158 g (5.57 oz). 1 tablespoon is 9.9 g and 1 teaspoon is 3.3 g.

1 cup: 158g; 5.57 oz
1 tablespoon: 9.9g
1 teaspoon: 3.3g
100 g: 0.63cups; of a US cup

White rice flour is the gluten-free flour milled from polished rice, and it feels slightly gritty compared with wheat flour. It is not a one-for-one swap for wheat flour by weight in most baking, so keep to what the recipe names.

Convert any amount of white rice flour

Starts at 1 cup of white rice flour in grams (158 g); change the units to go from grams back to cups.

Amount of white rice flourFromTo

1 cup of white rice flour is 158 grams

Cups: 1
Tablespoons: 16
Teaspoons: 48
Grams: 158
Ounces: 5.57

White Rice Flour: cups to grams and ounces

Cups of white rice flour in grams and ounces
Cups	Grams	Ounces
1/4 cup	39.5	1.39
1/3 cup	52.7	1.86
1/2 cup	79	2.79
2/3 cup	105.3	3.72
3/4 cup	118.5	4.18
1 cup	158	5.57
1 1/2 cups	237	8.36
2 cups	316	11.15
3 cups	474	16.72
4 cups	632	22.29

Tablespoons and teaspoons of white rice flour in grams and ounces
Spoons	Grams	Ounces
1/2 tablespoon	4.9	0.17
1 tablespoon	9.9	0.35
2 tablespoons	19.8	0.7
3 tablespoons	29.6	1.04
4 tablespoons	39.5	1.39
6 tablespoons	59.3	2.09
8 tablespoons	79	2.79
1/4 teaspoon	0.82	0.03
1/2 teaspoon	1.6	0.06
3/4 teaspoon	2.5	0.09
1 teaspoon	3.3	0.12
2 teaspoons	6.6	0.23
3 teaspoons	9.9	0.35

White Rice Flour: grams and ounces to cups

For a recipe written in grams or ounces, here is how much of a US cup each weight of white rice flour fills.

Grams of white rice flour in cups, tablespoons and ounces
Grams	Cups	Tablespoons	Ounces
25 g	0.16	2.53	0.88
50 g	0.32	5.06	1.76
100 g	0.63	10.13	3.53
125 g	0.79	12.66	4.41
150 g	0.95	15.19	5.29
200 g	1.27	20.25	7.05
250 g	1.58	25.32	8.82
300 g	1.9	30.38	10.58
400 g	2.53	40.51	14.11
500 g	3.16	50.63	17.64

Ounces of white rice flour in grams, cups and tablespoons
Ounces (weight)	Grams	Cups	Tablespoons
1 oz	28.3	0.18	2.87
2 oz	56.7	0.36	5.74
3 oz	85	0.54	8.61
4 oz	113.4	0.72	11.48
6 oz	170.1	1.08	17.23
8 oz	226.8	1.44	22.97
12 oz	340.2	2.15	34.45
16 oz	453.6	2.87	45.93

What a cup of white rice flour weighs, and why it can differ

USDA’s weight for “1 cup” is 158 g. Next to a cup of water, which holds about 236.6 g, that is 67% of the weight of a cup of water, so it is lighter than the same volume of water. The same cup works out at 0.67 g per millilitre.

USDA lists one cup measure for white rice flour (“1 cup”), so this page has no second figure to compare it with; if a recipe depends on the exact amount, weigh it.

USDA lists no tablespoon or teaspoon measure for this entry, so that weight is the cup weight divided by the US ratio (16 tablespoons or 48 teaspoons to the cup).

Frequently asked questions

How many grams are in 1 cup of white rice flour?

USDA measures 1 cup of white rice flour (its portion is listed as “1 cup”) at 158 g, which is 5.57 oz.

How many cups is 500 g of white rice flour?

500 g of white rice flour is 3.16 cups, using 158 g per cup of white rice flour. A 1 kg bag of white rice flour would fill 6.33 cups, and a 1 lb pack of white rice flour would fill 2.87.

How much does a part of a cup of white rice flour weigh?

Half a cup of white rice flour is 79 g, a third of a cup of white rice flour is 52.7 g and a quarter cup of white rice flour is 39.5 g. For small amounts, 1 tablespoon of white rice flour is 9.9 g (0.35 oz) and 2 tablespoons of white rice flour are 19.8 g.

If my recipe uses 250 ml metric cups, how much white rice flour is that?

A 250 ml cup is about 5.7% larger than a US cup, so a metric cup of white rice flour comes to about 167 g, going by USDA’s 158 g for a US cup of white rice flour. The weights on this page are for the US cup of about 237 ml.

Is it better to weigh white rice flour than to measure it by the cup?

For baking, yes. USDA lists one cup measure for white rice flour (“1 cup”), so this page has no second figure to compare it with; if a recipe depends on the exact amount, weigh it. Next to water, a cup of white rice flour is 67% of the weight of a cup of water, so it is lighter than the same volume of water, and 158 g on a scale is 158 g however the white rice flour was scooped.

What weighs about the same as a cup of white rice flour?

Among these converters, chocolate chips (168 g per cup) and whole flaxseed (168 g per cup) come closest to 158 g. Same volume, different ingredient: the weights are close, but the foods are not interchangeable.

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Weights are USDA averages for the entry named below. Packing, sifting, brand and moisture change the weight of a real cup, so treat them as a good starting point, not a lab measurement.

USDA describes this entry as “Rice flour, white, unenriched” (FoodData Central SR Legacy 2018-04).

Source: USDA FoodData Central, FDC 169714, retrieved October 22, 2026. How we calculate.