100 Grams Blueberries in Cups
100 g of blueberries is 0.59 cups (spooned and levelled, King Arthur Baking). The working is simple: 100 divided by 170 g per cup is 0.59, so 100 g of blueberries measures about 5/8 cup. Small, sweet blue berries. All the figures on this page are approximate conversions based on the King Arthur Baking value, so when a recipe really matters, verify with a kitchen scale.
If you have never weighed an ingredient before, this is the page to start with, because the whole conversion rests on one fact you can check in thirty seconds, and once you have seen it work for blueberries, the same idea carries over to every other ingredient in the kitchen.
Blueberries grams to cups conversion table
| Grams | Cups (decimal) | Nearest measure |
|---|---|---|
| 25 g | 0.15 cups | 1/8 cup |
| 50 g | 0.29 cups | 1/3 cup |
| 75 g | 0.44 cups | 1/2 cup |
| 100 g | 0.59 cups | 5/8 cup |
| 125 g | 0.74 cups | 3/4 cup |
| 150 g | 0.88 cups | 7/8 cup |
| 200 g | 1.18 cups | 1 1/8 cups |
| 250 g | 1.47 cups | 1 1/2 cups |
| 300 g | 1.76 cups | 1 3/4 cups |
| 400 g | 2.35 cups | 2 1/3 cups |
| 500 g | 2.94 cups | 3 cups |
The decimal column is exact arithmetic from the 170 g per cup figure, while the nearest-measure column is what you would actually reach for in the kitchen. A value like 0.59 cups is not a useful instruction on its own, so the table rounds it to the nearest practical measure, which for 100 g is 5/8 cup. The worked examples below show how to handle the in-between amounts without a calculator, and the reverse table underneath lets you go the other way, from cups back to grams.
Cups to grams for Blueberries
| Cups | Grams |
|---|---|
| 1/4 cup | 42 g |
| 1/3 cup | 57 g |
| 1/2 cup | 85 g |
| 2/3 cup | 113 g |
| 3/4 cup | 128 g |
| 1 cup | 17 g |
| 1 1/2 cups | 255 g |
| 2 cups | 34 g |
| 3 cups | 51 g |
Read this table the other way round whenever a recipe is written in cups and your scale reads grams. One cup is 170 g, half a cup is 85 g, and a quarter cup is 42 g, all measured spooned and levelled. Because the two tables are calculated from the same 170 g figure, they always agree with each other, which is the point of using one source for the whole page rather than mixing figures from different charts.
Worked examples
A recipe that calls for 100 g of blueberries
The most direct case is also the most common one: a recipe written in grams asks for exactly 100 g of blueberries, and the answer is 0.59 cups, or about 5/8 cup. Spoon it in spooned and levelled style, level it, and carry on. Because the figure is approximate, this is the point at which a scale earns its keep, and if the dish is one you will serve to guests or sell, weigh it instead of trusting the cup. For an everyday family meal the cup measure is close enough that nobody will notice the difference.
Halving a batch that uses 200 g
Suppose the original recipe uses 200 g of blueberries and you want half. Half of 200 g is 100 g, which is 0.59 cups, so the halved recipe takes 5/8 cup of blueberries. Halving by weight first and converting once is far more reliable than halving a cup measure by eye, because halving a heaped cup is guesswork, while halving a gram figure is exact arithmetic. Write the halved gram amounts down first, convert each one, and only then start measuring.
Using up a 200 g pack
A 200 g pack of blueberries is 1.18 cups, so two lots of 100 g give you two lots of 0.59 cups. That matters when a recipe calls for a cup and a bit, or when you are deciding whether the pack in the cupboard is enough for the recipe on the screen. Weigh the pack if you can, because packs are filled by weight and the printed weight is the reliable number, while the volume the pack occupies in a bag tells you nothing at all.
How the weight was measured
Spooned and levelled means spooning the ingredient into the measuring cup until it is heaped, then sweeping a straight knife across the top to level it off, unless the ingredient is a liquid, in which case it is poured to the line. Never scoop the cup through the bag or jar, and never tap the cup down, because both pack the ingredient and add weight.
The source for the 170 g per cup figure is King Arthur Baking, and the confidence in the value is high where the source is a published ingredient chart and medium where it is a USDA food-data value. King Arthur Baking publishes a standard ingredient weight chart that recipe developers use as a reference, and this page follows it exactly rather than averaging across sources, because an average of two different measuring methods is a number that matches nobody's cup.
There is a dispute worth knowing about. King Arthur gives a range of 140-170 g per cup for fresh blueberries; we use the top of the range, 170 g. Use the table above, which follows the same source, and your conversions will be consistent with the recipes on this site.
Measuring Blueberries without a scale
When there is no scale on the counter, the cup is the honest fallback, provided you measure it the way the figure was produced. Spoon blueberries into the cup a spoonful at a time until it is heaped above the rim, then sweep a straight knife or the back of a spatula across the top. Do not scoop the cup through the bag, do not tap the cup on the bench, and do not press the contents down, because each of those habits packs more blueberries into the same cup and silently raises the weight. For a dry ingredient that is how a cup that should hold about 170 g ends up holding far more, and the recipe pays for it. A second useful habit is to measure over a plate or a sheet of baking paper, so anything that spills can be tipped back in instead of lost on the bench. If you are working from a recipe that lists several ingredients in grams, convert them all before you start cooking, write the cup measures on a scrap of paper, and keep that paper where you can see it, because stopping mid-recipe to do arithmetic is when mistakes creep in.
Common mistakes with blueberries
The most common mistake with blueberries is treating the cup as a fixed weight. It is not, and the number on this page is tied to one measuring method, spooned and levelled. A second mistake is rounding too early: 100 g is 0.59 cups, not a tidy half cup or a tidy two-thirds, and rounding it to the nearest convenient measure changes the amount by enough to matter in a recipe that depends on balance. A third mistake is using a liquid measuring jug for a dry ingredient, or a dry cup for a liquid one, because the two are calibrated differently and the rim of a jug invites overfilling. Keep the dry cups for dry ingredients and the jug for liquids, level every cup, and check the result against the scale whenever the recipe matters.
Storing blueberries
Refrigerate unwashed; use within 1 week. Muffins, pancakes, salads and snacking. Keeping blueberries in good condition protects the conversion as well as the flavour, because a stale, damp or clumped ingredient does not weigh the same per cup as a fresh one, and the table above assumes the ingredient is in its normal, dry, free-flowing state. If a bag has been open for months, check it before you measure, and replace it if it smells off, feels damp or has changed colour.
Frequently asked questions
Is 100 g of blueberries exactly 0.59 cups?
To two decimal places, yes: 100 divided by 170 is 0.59, and that is the figure the table uses. It is still an approximate conversion, because the true weight of a cup depends on how it is measured, so treat 0.59 cups as the working answer and weigh the ingredient with a kitchen scale when the recipe really matters.
How do I measure 100 g of blueberries without a scale?
Spoon blueberries into a measuring cup spooned and levelled style until it is heaped, then level it with a straight knife. That gives you about 5/8 cup per 100 g. Do not scoop the cup through the bag, because scooping packs the ingredient and adds weight, and do not use a mug, because mugs are not standard cups.
How many tablespoons is 100 g of blueberries?
One tablespoon is one sixteenth of a cup, so one tablespoon of blueberries weighs about 10.6 g, and 100 g is about 9.4 tablespoons. Tablespoons are a steadier measure than cups for small amounts, so if your recipe needs less than half a cup, count tablespoons instead.
How many grams is 1 cup of blueberries?
One US cup of blueberries, measured spooned and levelled, weighs 170 g according to King Arthur Baking. That is the figure every number on this page is calculated from, so one cup is 170 g, half a cup is 85 g, and a quarter cup is 42 g.
Does packing change the answer?
Yes, and for some ingredients it changes it a lot. The 170 g figure assumes the spooned and levelled method, so a packed cup weighs more and a loosely filled cup weighs less. If your blueberries has settled, been pressed down or absorbed moisture, the cup will be heavier than the table says, which is another reason to weigh it when the result matters.