1 Cup Pecans in Grams
1 cup of pecans weighs 114 g (spooned and levelled, King Arthur Baking). Buttery, sweet nuts from North America. 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.
Pecans are buttery, sweet nuts from North America, and a cup of them weighs 114 g, almost exactly the same as a cup of walnuts. They are the nuts of pecan pie, pralines, salads and cookies, where their sweetness and their soft, buttery texture are the point of the dish. Pecans are less bitter than walnuts and more delicate, so they are often used whole or in large pieces rather than chopped fine, and they toast quickly, going from golden to burnt in under a minute. Like walnuts, their oils turn rancid at room temperature, so they should be refrigerated or frozen if they will not be used within a few weeks.
Why weighing pecans beats measuring it in cups
Dry pantry ingredients are the ones where a scale earns its keep fastest, because the amounts are small and the consequences are large. A teaspoon of baking soda is only about 6 g, but the difference between the right amount and double the amount is the difference between a cake that rises and one that tastes of soap and collapses. Spices are even more concentrated: a tablespoon of ground ginger weighs about 5 g, and that is enough to flavour a whole batch of biscuits. Nuts and dried fruit sit at the other end of the scale, where a cup is a substantial amount and the weight depends on how whole, chopped or packed the pieces are. Weighing dry ingredients is the only way to be consistent with small amounts, because a heaped spoon and a level spoon can differ by half.
Pecans cups to grams conversion table
| Cups | Grams | Tablespoons |
|---|---|---|
| 1/4 cup | 28.5 g | 4 |
| 1/3 cup | 38 g | 5.3 |
| 1/2 cup | 57 g | 8 |
| 2/3 cup | 76 g | 10.7 |
| 3/4 cup | 85.5 g | 12 |
| 1 cup | 114 g | 16 |
| 1 1/2 cups | 171 g | 24 |
| 2 cups | 228 g | 32 |
| 3 cups | 342 g | 48 |
| 4 cups | 456 g | 64 |
One tablespoon of pecans weighs about 7.1 g, and a cup is 16 tablespoons, so the tablespoon column is simply the cup weight divided by 16. For small amounts, a scale that reads to the gram is far more reliable than a spoon, because a heaped tablespoon can weigh half as much again as a level one. All the values in this table are approximate, and they assume the ingredient is measured spooned and levelled, exactly as the source measured it.
How the weight was measured
spooned and levelled means filling the cup with a spoon rather than plunging the cup into the bag or jar, then sweeping a straight knife across the top to level it off. Never scoop, and never tap the cup down, because both pack the ingredient and add weight. The difference between a spooned cup and a scooped cup can be 15 to 25 percent, which is enough to change a bake from tender to tough, so the method matters as much as the number. The source for the figure on this page is King Arthur Baking, and the confidence in the value is high. King Arthur Baking publishes a standard ingredient weight chart that recipe developers use as a reference, and this page follows that chart rather than any single cookbook. Where the chart gives a range or a note, we say so plainly instead of hiding the uncertainty. All the figures here are approximate conversions: natural ingredients vary by brand, variety, moisture and how finely they are chopped or ground, so when a recipe really matters, verify the weight with a kitchen scale.
Worked examples
A pecan pie for Thanksgiving
A pecan pie that calls for 2 cups of pecans needs 228 g, arranged over a filling of corn syrup, eggs and sugar. The pecans are the top of the pie as much as the filling, and they should be arranged in a neat pattern rather than dumped in, because the pie is judged as much by its appearance as by its flavour. Weigh 228 g and use whole pecan halves for the top, saving the broken pieces for the filling, where they will not be seen.
Pralines for a gift
Pralines that use 1 cup of pecans need 114 g, stirred into a caramel of sugar, butter and cream and spooned onto baking paper to set. The pecans give the pralines their crunch and their buttery flavour, and they should be toasted first, because toasting deepens their flavour and helps them hold their texture in the hot caramel. Work quickly once the caramel is ready, because it sets fast and the pralines will not spread properly if it cools.
Cookies with pecans
A batch of cookies that calls for 1/2 cup of pecans needs 57 g, chopped coarsely and folded into the dough with chocolate chips. The pecans give the cookies a buttery crunch that walnuts cannot match, because pecans are sweeter and softer. Chop them coarsely rather than finely, because large pieces stay crisp in the oven while small pieces disappear into the dough, and toast them first if you have time.
When this conversion matters most
This conversion matters most with leavening, salt and spices, where the amounts are small and the effect is large. Baking soda, baking powder and yeast all work within narrow ranges, and too much or too little changes the rise, the flavour and the texture. It matters less with nuts and dried fruit in a trail mix or a salad, where a few grams either way is invisible. It matters again in bulk baking and preserving, where a spice blend or a leavening mix is made in quantity and a cup-based error is multiplied across dozens of batches. When the ingredient is the difference between rising and not rising, weigh it.
Common mistakes
The most common mistake is using a heaped spoon when the recipe means a level one. A heaped tablespoon of a ground spice can weigh half as much again as a level tablespoon, which is enough to make a curry bitter or a cake taste of baking soda. The second is scooping a dry ingredient straight from the jar with the measuring spoon, which packs it; spoon it in and level it with a knife instead. The third is measuring over the mixing bowl, so an overshoot falls in and cannot be taken out; measure over a plate or a piece of paper. And the fourth is confusing ingredients that look alike: baking soda and baking powder, ground ginger and ground cinnamon, salt and sugar. They weigh differently and behave differently, and a mix-up cannot be fixed after mixing.
What to do if you do not have a scale
If you do not have a scale, use proper measuring spoons for small amounts and level every spoon with the back of a knife. For cups of nuts, seeds or dried fruit, spoon the ingredient into a dry cup and level it, without pressing it down, because pressing packs the pieces and adds weight. For ground spices, spoon them in lightly and level them; do not tap the spoon, which settles the powder. For leavening and yeast, which are used in tiny amounts, a scale that reads to the gram is genuinely worth owning, because a single gram too much baking soda is noticeable in the finished cake.
Storing pecans
Refrigerate or freeze to protect the oils. Keeping pecans properly stored matters for the conversion as well as for the flavour: an ingredient that has absorbed moisture from the air weighs more per cup than a dry one, and one that has dried out weighs less. Store it in an airtight container, away from heat and light, and measure it in the state the recipe expects, not straight from a damp or stale bag.
Frequently asked questions
What is the difference between pecans and walnuts?
Pecans are sweeter, butterier and softer than walnuts, which are richer and slightly bitter. A cup of pecans weighs 114 g, while a cup of walnuts weighs 113 g, so they are almost identical by weight and they can be swapped in most recipes. The difference is in flavour and texture: pecans give a sweet, buttery crunch, while walnuts give a bitter, earthy crunch. For a pecan pie, only pecans will do, but for a salad or a batch of cookies, either works well.
How should I store pecans?
Pecans should be stored in an airtight container in the fridge or the freezer, because their oils turn rancid quickly at room temperature. A bag left in a warm cupboard for a few months will taste stale and bitter, and toasting will not fix it. Taste one before baking with pecans that have been stored for a while, and throw them away if they taste off. Frozen pecans keep for up to a year and can be used straight from the freezer.
Can I use cups instead of a scale for pecans?
Yes, but a scale is more accurate. If you measure pecans spooned and levelled, exactly as the figure on this page was measured, a cup will be close to 114 g, within a few grams. The problem is that most people scoop rather than spoon, which can add 15 to 25 percent to the weight, and that error is enough to change a bake. For everyday cooking, cups are fine. For baking, where the ratio of ingredients decides the result, weigh it and check the number on the scale.
How many tablespoons are in a cup of pecans?
There are 16 tablespoons in a US cup, so a cup of pecans is 16 tablespoons, and one tablespoon weighs about 7.1 g. A teaspoon weighs about 2.4 g. Tablespoons are useful when a recipe calls for a small amount, but they carry the same packing problem as cups: a heaped tablespoon can weigh half as much again as a level one, so level every spoon with the back of a knife, and use a scale for small amounts when accuracy matters.
Does the weight change if I pack or sift pecans?
Yes, and this is the single biggest source of error in cup measurements. pecans is measured spooned and levelled, and a scooped cup can weigh 15 to 25 percent more than a spooned cup, because scooping packs the ingredient down. Sifting has the opposite effect: it adds air and makes the cup lighter. Always measure the way the figure on this page was measured, spooned and levelled, and the weight will match the table.