1/2 Cup Pecans in Grams
1/2 cup of pecans weighs 57 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 the sweetest, butteriest nut in the baking drawer, which is why a half cup of them is the amount that turns a brownie into a pecan brownie, a salad into a pecan salad, and a pie into the centrepiece of a holiday table.
Why half a cup of pecans is a useful amount
Half a cup of pecans is the amount that shows up in a batch of cookies, a tray of granola or a handful of trail mix, and it is also the amount where the cup starts to mislead you. Whole and chopped nuts do not pack the same way twice: the gaps between the pieces change with the size of the chop, the shape of the nut and how settled the bag is. A level half cup of chopped pecans can weigh several grams more or less than the same volume of whole ones, and that swing matters when nuts are the expensive ingredient in the recipe. Pecan pie, pralines, salads and cookies. The table below is built from the published King Arthur Baking weight for pecans measured spooned and levelled, so you can weigh a batch once and repeat it exactly.
Pecans cups to grams conversion table
| Cups | Grams | Tablespoons (approx.) |
|---|---|---|
| 1/4 cup | 28.5 g | 1.8 g |
| 1/3 cup | 38 g | 2.4 g |
| 1/2 cup | 57 g | 3.6 g |
| 2/3 cup | 76 g | 4.8 g |
| 3/4 cup | 85.5 g | 5.3 g |
| 1 cup | 114 g | 7.1 g |
| 1 1/2 cups | 171 g | 10.7 g |
| 2 cups | 228 g | 14.2 g |
| 3 cups | 342 g | 21.4 g |
| 4 cups | 456 g | 28.5 g |
The tablespoon column is a bonus for recipes that call for a spoonful or two: one tablespoon of pecans weighs about 7.1 g, and one teaspoon about 2.4 g. A cup is 16 tablespoons, so the numbers in the table are just the cup weight divided by 16, rounded to one decimal place. 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.
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. 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 114 g figure 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 it exactly rather than averaging across sources, because an average of two different measuring methods is a number that matches nobody's cup.
Worked examples
A pecan pie for a holiday
A pecan pie for a holiday table calls for 1/2 cup of pecan halves, which is 57 g, arranged over the filling before baking. The pecans float to the top and toast in the oven, so their weight decides whether the pie is generously topped or sparse. Weighing 57 g keeps the topping even, and the pie must cool completely before slicing, or the filling runs.
A tray of brownies with pecans
A tray of brownies calls for 1/2 cup of chopped pecans, which is 57 g, folded into the batter just before baking. The pecans have to be weighed after chopping, because chopped pecans pack tighter than whole ones. Weighing 57 g keeps the brownies studded without being mostly nuts, and the pieces should be folded in gently so the batter does not lose its air.
A salad with candied pecans
A salad for a dinner party uses 1/2 cup of candied pecans, which is 57 g, scattered over goat cheese and roasted squash. The pecans are the sweet crunch in the dish, and their weight decides whether every serving gets some. Weighing 57 g keeps the salad balanced, and the pecans should be cooled completely after candying, or they soften in the dressing.
When this conversion matters most
This conversion matters most when nuts are the expensive ingredient or the structural one. In a cookie, the weight of pecans decides whether the dough holds together or crumbles; in granola, it decides the ratio of crunch to oats; in a cake, it decides whether the crumb is studded or overloaded. A cup measure hides all of that behind the air gaps between the pieces, so two bakers following the same recipe with cups can end up with visibly different results. Weighing removes the guesswork and, just as usefully, tells you exactly how much of an expensive ingredient a recipe really needs.
Common mistakes with pecans
- Mixing whole and chopped weights. Chopped nuts pack tighter than whole ones, so a half cup of chopped pecans weighs more than a half cup of whole. Use the weight for the form the recipe actually calls for, and chop after weighing when you can.
- Scooping from the bag. Scooping compresses the pieces and traps fewer air gaps, so the cup holds more than a spooned, levelled measure. Spoon the nuts in and level them off.
- Skipping the scale for an expensive ingredient. Nuts are the priciest item in most baking. Weighing tells you the true cost of a batch and stops you pouring in a generous extra handful that the recipe never asked for.
- Storing nuts where they go stale. Nuts go rancid in a warm cupboard, and stale nuts weigh the same but taste of nothing. Keep them sealed and cool so the weight you measure is the flavour you expect.
Storage and handling
Refrigerate or freeze to protect the oils. Keeping pecans stored properly also keeps its weight per cup stable: an ingredient that has absorbed moisture from the air weighs more per cup than a dry one, so a sealed container is not just about freshness, it is about measurement accuracy too. If a bag has been open for months in a humid kitchen, the first thing to do before a precise bake is to weigh the ingredient rather than trusting the cup.
Frequently asked questions
How many grams is 1/2 cup of pecans?
1/2 cup of pecans weighs 57 g, measured spooned and levelled according to King Arthur Baking. That is the figure to use when converting a recipe from cups to grams, and it is the value the conversion table on this page is built on.
How do I measure pecans without a scale?
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. Never scoop the cup through the bag or jar, and never tap the cup down, because both pack the ingredient and add weight. That gives the closest result to 57 g per half cup, but it is still an estimate: the honest answer is that a scale is the only way to know the exact weight, and a basic digital kitchen scale costs less than a bag of good flour.
Does pecans always weigh the same per cup?
No. Brand, grind, moisture and how settled the container is all shift the weight by a few grams, and for some ingredients the swing can be much larger. The 114 g figure is the standard King Arthur Baking value for pecans measured spooned and levelled, and it is the right default, but when a recipe is precise, weigh the ingredient and trust the scale over the cup.
Can I use the same conversion for a different brand of pecans?
Yes, as a starting point. The 114 g figure is a standard average for pecans, and most brands sit within a few grams of it. If you cook with one brand all the time, weigh one cup of it once and note the number on the bag, and you will have a conversion tuned to your own kitchen.
Can I swap pecans for walnuts at the same weight?
By weight, yes, more or less: a half cup of pecans is 57 g and a half cup of walnuts is 56.5 g, so the weights are close. By flavour, no: pecans are sweeter and butterier, while walnuts are earthier and more bitter, so the swap changes the character of the dish. In a pie or a brownie the swap works well; in a pesto or a salad where the nut is the flavour, the difference shows.
How should I store pecans?
Refrigerate or freeze to protect the oils. Good storage keeps the ingredient fresh and keeps its weight per cup consistent, because moisture absorbed from the air adds grams that the recipe did not ask for.
Related conversions
Use the cups to grams converter, tablespoons to grams converter, weight converter, recipe scaler for instant answers, or browse the cups to grams hub for the full ingredient list. Related pages: Peanut Butter in cups to grams, Rolled Oats in cups to grams, Cocoa Powder in cups to grams. See also our disclaimer about approximate conversions.