There are about 3.2 cups in a pound of Sunflower Seeds. Sunflower Seeds weighs 140 g per cup (spooned and levelled), so a pound — 453.59 g — divides to 3.24 cups. Hulled sunflower seeds, mild and nutty. Bread, granola, salads and snacking. Every figure on this page is approximate, because a cup measures volume and the weight depends on how the ingredient settles and how it was measured; when the amount matters — a cake, a sauce that must set, a dough that must rise — weigh the Sunflower Seeds on a kitchen scale instead of trusting the cup. This page gives you the full table for a pound and beyond, worked examples from real recipes, the method behind the figure, and the mistakes that catch people out.

How many cups in a pound of Sunflower Seeds?

A pound of Sunflower Seeds is about 3.2 cups (3.24 cups, to be exact). The table below covers a quarter of a pound up to ten pounds, so you can read off whatever your recipe or your bulk buy calls for without doing the division yourself. If your recipe lists Sunflower Seeds in grams, the same table works in reverse: find the grams and read across to the cups.

Amount Cups Grams Tablespoons Millilitres
0.25 lb 0.81 113 13 192
0.5 lb 1.62 227 26 383
0.75 lb 2.43 340 39 575
1 lb 3.24 454 52 767
2 lb 6.48 907 104 1533
5 lb 16.20 2268 259 3833
10 lb 32.40 4536 518 7666

The tablespoons column is the useful one for small amounts: a pound of Sunflower Seeds is about 52 tablespoons, and a single tablespoon weighs about 8.8 g. Use the pounds to grams converter if your recipe lists a different weight, and the cups to grams converter if you need the figure for a single cup of sunflower seeds.

Worked examples

The examples below use real recipes, with the cups and the grams side by side so you can follow the maths in context. Each one also notes where the cup is good enough and where the scale earns its keep.

A loaf of seeded bread

A loaf of seeded bread needs 3/4 cup of Sunflower Seeds — about 105 g — kneaded into a dough for one loaf. Three-quarters of a cup is about 105 g; press extra seeds onto the crust before baking for a bakery look.

A tray of granola

A tray of granola needs 1 cup of Sunflower Seeds — about 140 g — tossed with oats, honey and nuts. One cup is about 140 g; sunflower seeds toast faster than nuts, so add them halfway through the bake or they burn.

A salad for a lunch crowd

A salad for a lunch crowd needs 1/2 cup of Sunflower Seeds — about 70 g — scattered over greens with feta and tomatoes. Half a cup is about 70 g; toast the seeds in a dry pan for two minutes and the salad tastes noticeably better.

How the figure was measured

The weight figure on this page comes from King Arthur Baking: Sunflower Seeds weighs 140 g per cup, measured spooned and levelled, and that figure carries high confidence in CookScale's 120-ingredient table. All weights are per US cup (236.6 ml), and every cup-based result on this page is approximate, because a cup measures volume while the weight depends on how the ingredient settles, how fresh it is, and how it was measured. When the amount matters — a cake, a sauce that must set, a dough that must rise — weigh the Sunflower Seeds on a kitchen scale instead of trusting the cup. Read more about this ingredient on the Sunflower Seeds hub, which covers its weight, its measures, its storage and its substitutes in one place.

How the maths works

The conversion is a single division: one pound is 453.59 g, and one cup of Sunflower Seeds weighs 140 g, so 453.59 ÷ 140 = 3.24 cups. Going the other way, one cup of Sunflower Seeds weighs 140 g, which is 0.31 lb, and one tablespoon weighs about 8.8 g while one teaspoon weighs about 2.92 g. To get any number of cups, weigh that many times 140 g: two cups is 280 g, three cups is 420 g, and half a cup is 70 g. In volume terms, a pound of Sunflower Seeds is about 767 ml, since one US cup is 236.6 ml. Remember that the cup is a volume and the pound is a weight, so this maths only works because we know the density of Sunflower Seeds; the same pound of a different ingredient would be a different number of cups entirely.

Practical guidance

Nuts go rancid faster than almost anything else in the pantry because their oils are exposed to air. Airtight container, cool and dry, up to 6 months. Toast sunflower seeds in a dry pan for two minutes; raw seeds taste flat against toasted oats and nuts. Buy smaller bags more often rather than one huge bag that sits open, and taste one before baking with an old bag: fresh nuts taste sweet and clean, stale ones taste like old oil.

How to measure it

Spoon Sunflower Seeds into a dry cup measure and level it off — never pack them down, and never scoop the cup through the bag. Whole nuts, halves and chopped pieces all measure differently in the same cup, because the pieces settle differently and the air gaps change. If a recipe says '1 cup chopped', chop first and then measure; if it says '1 cup, chopped', measure first and then chop. When it matters, weigh: 140 g of Sunflower Seeds is 140 g however you chop them.

Why recipes ask for a pound of Sunflower Seeds

Sunflower seeds are sold by weight in bags and bulk bins, while recipes call for cups, so the pound conversion connects the bag to the bread or the granola. A pound is about three and a quarter cups, which covers three loaves of seeded bread or three trays of granola.

Buying and storing a pound of Sunflower Seeds

A pound of nuts is the standard bag size, and the price per pound drops sharply in bulk bins and warehouse packs. Only buy the big bag if you have freezer space — nuts keep for a year in the freezer and for months in the fridge, but only weeks in a warm cupboard.

Frequently asked questions

How many tablespoons are in a pound of Sunflower Seeds?

About 52 tablespoons. A pound of Sunflower Seeds is about 3.24 cups, and there are 16 tablespoons in a cup, so 3.24 × 16 is about 52. A single tablespoon weighs about 8.8 g.

Do whole and chopped Sunflower Seeds measure the same?

No. Chopped Sunflower Seeds pack tighter, so a cup of chopped pieces weighs more than a cup of whole ones. The 140 g per cup figure is for Sunflower Seeds spooned and levelled as sold — weigh them if the recipe is a cake where the amount matters, and chop after measuring if the recipe says '1 cup, chopped'.

How many cups are in an 8 oz bag of Sunflower Seeds?

About 1.62 cups. An 8 oz bag weighs 227 g, and at 140 g per cup that divides to 1.62 cups. A full pound bag is double that, about 3.24 cups.

How long does a pound of Sunflower Seeds keep?

Airtight container, cool and dry, up to 6 months. In practice, a pound lasts a few weeks in a cupboard, months in the fridge and up to a year in the freezer. Taste one before baking with an old bag — fresh nuts taste sweet and clean, stale ones taste like old oil.

Are sunflower seeds in the shell the same weight as hulled?

No — the shell is a large share of the weight, so a pound in the shell yields far less than a pound of hulled seeds. The 140 g per cup figure is for hulled seeds only; weigh shelled seeds on a scale.

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