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Flaxseed, ground — Cups to Grams

One US cup of ground flaxseed weighs about 112 grams. That makes it lighter than all-purpose flour, which is 120 grams per cup. Ground flaxseed is light and fluffy — whole flax seeds weigh noticeably more per cup. Use the converter below to switch ground flaxseed between cups, grams, ounces, tablespoons and millilitres — or read the full chart underneath.

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Ground flaxseed conversion chart

Ground flaxseed — cups to grams chart
Cups	Grams	Ounces	Tablespoons	Millilitres
⅛ cup	14 g	0.494 oz	2	29.57 ml
¼ cup	28 g	0.988 oz	4	59.15 ml
⅓ cup	37.33 g	1.32 oz	5.33	78.86 ml
½ cup	56 g	1.98 oz	8	118.3 ml
⅔ cup	74.67 g	2.63 oz	10.67	157.7 ml
¾ cup	84 g	2.96 oz	12	177.4 ml
1 cup	112 g	3.95 oz	16	236.6 ml
1¼ cups	140 g	4.94 oz	20	295.7 ml
1½ cups	168 g	5.93 oz	24	354.9 ml
2 cups	224 g	7.9 oz	32	473.2 ml
3 cups	336 g	11.85 oz	48	709.8 ml

Grams to cups: ground flaxseed

Ground flaxseed — grams to cups chart
Grams	Cups	Ounces	Tablespoons
10 g	0.089	0.353 oz	1.43
25 g	0.223	0.882 oz	3.57
50 g	0.446	1.76 oz	7.14
75 g	0.67	2.65 oz	10.71
100 g	0.893	3.53 oz	14.29
125 g	1.12	4.41 oz	17.86
150 g	1.34	5.29 oz	21.43
200 g	1.79	7.05 oz	28.57
250 g	2.23	8.82 oz	35.71
300 g	2.68	10.58 oz	42.86
400 g	3.57	14.11 oz	57.14
500 g	4.46	17.64 oz	71.43

How to measure ground flaxseed

Ground flaxseed is light and fluffy — whole flax seeds weigh noticeably more per cup.

Because a cup measures volume rather than weight, the most reliable way to measure ground flaxseed is with a digital kitchen scale. If you are working from cups, keep your technique consistent every time so your results are repeatable. For more, see our guide on baking by weight versus volume.

No scale yet? You don't need a fancy one; any digital kitchen scale that reads in 1-gram steps does everything on this site. Well-rated kitchen scales on Amazon →

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Substitutes for ground flaxseed

1 tbsp ground flaxseed + 3 tbsp water = 1 large egg (vegan binder) (Bob's Red Mill)
Rest 5 minutes until thickened. Best in muffins, pancakes, quick breads, and cookies.
1:1 ground chia seeds (Vitamix)
Chia gels faster and stronger; flavor is milder than flax. For binding use, the chia-egg ratio is the same (1 tbsp + 3 tbsp water).

See all ground flaxseed substitutes, ratios and sources →

Ground flaxseed conversions: FAQ

Why doesn't a cup of ground flaxseed weigh the same as a cup of water?

A cup measures volume, not weight. Ground flaxseed is less dense than water (112 g versus 237 g per cup), so the same volume has a different weight. Weighing in grams is the most accurate way to measure it.

Common ground flaxseed conversions

Quick-answer pages for the conversions people search for most.

100 g to cups

100 g ground flaxseed ≈ 0.893 cups

200 g to cups

200 g ground flaxseed ≈ 1.79 cups

250 g to cups

250 g ground flaxseed ≈ 2.23 cups

500 g to cups

500 g ground flaxseed ≈ 4.46 cups

¼ cup to grams

¼ cup ground flaxseed ≈ 28 g

½ cup to grams

½ cup ground flaxseed ≈ 56 g

1 cup to grams

1 cup ground flaxseed ≈ 112 g

2 cups to grams

2 cups ground flaxseed ≈ 224 g

Related converters

← All ingredient converters Cups to grams chart Recipe scaler

* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.