Hazelnuts (Whole):
Grams to Cups
By Stefan Ulrich · Last updated
One cup of whole hazelnuts weighs 135 grams. With their rich, sweet flavor and satisfying crunch, hazelnuts are central to European baking — from Italian torta di nocciole to German Haselnusskuchen and the beloved hazelnut-chocolate combination in gianduja.
How much Hazelnuts (Whole) weighs at each cup measure.
Convert Hazelnuts (Whole)
1 cup = 135 grams
= — grams
= — cups
Quick reference
Measurement Table
| Cups | Grams | Ounces |
|---|---|---|
| 1 tsp | 3 g | 0.11 oz |
| 1 tbsp | 8 g | 0.28 oz |
| ⅛ cup | 17 g | 0.60 oz |
| ¼ cup | 34 g | 1.20 oz |
| ⅓ cup | 45 g | 1.59 oz |
| ½ cup | 68 g | 2.40 oz |
| ⅔ cup | 90 g | 3.17 oz |
| ¾ cup | 101 g | 3.56 oz |
| 1 cup | 135 g | 4.76 oz |
| 1¼ cups | 169 g | 5.96 oz |
| 1½ cups | 203 g | 7.16 oz |
| 2 cups | 270 g | 9.52 oz |
| 3 cups | 405 g | 14.29 oz |
About Hazelnuts (Whole)
Whole hazelnuts weigh more per cup than most other nuts because of their dense, spherical shape, which allows them to pack relatively efficiently into a measuring cup despite leaving air gaps. For recipes that call for chopped or ground hazelnuts, the weight per cup will differ significantly — ground hazelnuts pack even more tightly.
Roasting hazelnuts before using them in baking dramatically improves their flavor by developing Maillard compounds that create a deeper, more complex nuttiness. To roast: spread on a baking sheet at 175°C (350°F) for 10–15 minutes until the skins crack and the nuts are golden. The skins can then be rubbed off with a clean kitchen towel.
For hazelnut flour or meal (used in French financiers, macarons, and tortes), whole hazelnuts are ground in a food processor until fine but not pasty. One cup of whole hazelnuts (135 g) yields slightly more than 1 cup of hazelnut meal due to the increased surface area.
Hazelnuts have a high fat content that makes them prone to rancidity. Store raw or roasted hazelnuts in an airtight container in the refrigerator or freezer to extend their shelf life significantly.
Tips for measuring Hazelnuts (Whole)
- Roast before use — the flavor improvement is dramatic and worth the extra step.
- Rub in a kitchen towel while hot to remove the bitter skins easily.
- Store in the fridge or freezer: high fat content causes rapid rancidity at room temp.
- Weigh chopped hazelnuts separately — density increases significantly when chopped.
Common mistakes
- Using unroasted hazelnuts when roasted are called for — the flavor difference is substantial.
- Skipping the skin removal — hazelnut skins are bitter and can overpower delicate recipes.
- Storing at room temperature long-term — hazelnuts go rancid quickly without refrigeration.
Frequently Asked Questions
- How many grams in a cup of Hazelnuts (Whole)?
- 1 cup of Hazelnuts (Whole) weighs 135 grams — the standard used in most American recipes. Use the converter above for any other amount.
- How many grams is ¼ cup of Hazelnuts (Whole)?
- ¼ cup of Hazelnuts (Whole) weighs about 34 grams. The full table above lists every common cup fraction.
- What's the most common mistake when measuring Hazelnuts (Whole)?
- Using unroasted hazelnuts when roasted are called for — the flavor difference is substantial. Weighing on a kitchen scale avoids it entirely.
- Does chopping change how much Hazelnuts (Whole) fits in a cup?
- Yes — finely chopped hazelnuts (Whole) packs denser than whole or halved pieces, so weigh when precision matters.