Ingredient Weight Converter · nut
Pecan Halves: cups to grams
1 cup of pecan halves weighs 99 grams. Use the converter below for any other amount, or check the quick-reference table.
By Andrew Flores, Editor and publisher, Nathan Management. Last reviewed .
Density source: USDA FoodData Central, cross-checked against the King Arthur Baking weight chart. How these figures are derived and corrected is documented in our editorial standards.
Pecan Halves baseline: 1 cup = 99 g.
Common amounts
| Cups | Tablespoons | Grams | Ounces (weight) | Milliliters |
|---|---|---|---|---|
| 1/4 cup | 4.0 | 25 g | 0.87 oz | 59 mL |
| 1/3 cup | 5.3 | 33 g | 1.16 oz | 79 mL |
| 1/2 cup | 8.0 | 50 g | 1.75 oz | 118 mL |
| 2/3 cup | 10.7 | 66 g | 2.33 oz | 158 mL |
| 3/4 cup | 12.0 | 74 g | 2.62 oz | 177 mL |
| 1 cup | 16.0 | 99 g | 3.49 oz | 237 mL |
| 1.5 cups | 24.0 | 149 g | 5.24 oz | 355 mL |
| 2 cups | 32.0 | 198 g | 6.98 oz | 473 mL |
| 3 cups | 48.0 | 297 g | 10.48 oz | 710 mL |
| 4 cups | 64.0 | 396 g | 13.97 oz | 946 mL |
Spoon weights
Derived from the same 99 g per cup — a US tablespoon is 1/16 of a cup and a teaspoon is 1/48.
| Amount | Grams |
|---|---|
| 1 tablespoon | 6.2 g |
| 1 teaspoon | 2.1 g |
| 1/2 teaspoon | 1.0 g |
| 1/4 teaspoon | 0.52 g |
Pecan Halves at a glance
- Toasting
- 350 °F for 6–8 minutes. They burn a minute or two after they smell perfect
- Fat
- about 72% — the highest fat content of any common nut
- 1 lb bag
- about 4 1/2 cups of halves (454 g ÷ 99 g)
What a cup of pecan halves actually weighs
The published 99 g assumes one specific way of filling the cup. Here is what the same cup weighs under the other common handling methods and product forms, and how far off the recipe you end up.
| How it was measured | Grams per cup | vs. published | Why |
|---|---|---|---|
| Pecan halves | 99 g | published figure | The published figure. Curved halves stack loosely. |
| Pecan pieces (as sold by the bag) | ~117 g | +18% | Broken pieces fill the gaps, so a cup holds roughly 18% more nut. |
A tilde (~) marks a working estimate rather than a published figure — it varies with brand, grind, or how hard the cup was packed.
Why measuring pecan halves by cup goes wrong
Pecan halves run 99 g/cup, almost identical to walnut halves, because they are similarly shaped and similarly hollow. Pecan pieces — broken halves and small chunks sold by the bag — pack to about 117 g/cup, so the two are not interchangeable by volume even though they are the same nut.
Practical tips for working with pecan halves
Toasted pecans are a different ingredient than raw ones. Six to eight minutes at 350 °F turns them from oily and bland to warm, buttery, and faintly crisp. Untoasted pecans on top of a pecan pie go soggy in the filling within hours. Toast them first, even though the pie also goes into a hot oven — by the time the filling sets, surface-toasted pecans are exactly right.
Note from this ingredient's record: Toast at 350 °F for 6–8 minutes before folding into anything baked. Untoasted pecans go soggy in pie filling.
Substitutions that work — and what they cost you
Walnuts for pecans
Ratio: 1:1
Trade-off: Nearly the same density. Walnuts are more tannic and less sweet; in pecan pie the difference is obvious, in a coffee cake it is not.
Pieces for halves
Ratio: Match by weight
Trade-off: A cup of pieces is about 18 g more nut than a cup of halves. For a decorative pie top you need halves regardless.
When pecan halves ruins the recipe
| What you see | What went wrong | What to do |
|---|---|---|
| Pecans on top of the pie are soft and soggy | Raw pecans went on before baking and steamed in the filling. | Toast them first. Toasted nuts hold their crispness through the bake. |
| Nuts taste rancid or like old oil | 72% fat sitting at room temperature. | Store in the freezer and taste one before committing them to a pie. |
Storing pecan halves
Freezer, sealed, up to a year. Pecans are the highest-fat common nut and the least forgiving of a warm pantry.
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