Cups to grams

How many grams in a cup of pecan halves?

One US cup of pecan halves weighs 99 g.

Every amount a recipe asks for

pecan halvesIn grams
¼ cup25 g
⅓ cup33 g
½ cup50 g
⅔ cup66 g
¾ cup74 g
1 cup99 g
2 cups198 g

Going the other way

If you have a weight and need cups — rounded to the quarter cup, because that is the finest division a cup set actually has:

50 g½ cup
100 g1 cup
200 g2 cups
250 g2 ½ cups
500 g5 cups
1000 g10 cups

Which cup does your recipe mean?

“A cup” is four different volumes, so the weight above changes with the recipe's origin. Same pecan halves, same cup measure, different answer:

CupVolumeOne cup weighsUsed in
US customary237 ml99 gAmerican recipes and measuring cups
US legal240 ml100 gnutrition labels
Metric250 ml104 gAustralia, New Zealand, Canada
Imperial284 ml119 gBritish recipes before roughly 1980

99 g per US customary cup. Source: King Arthur Baking ingredient weight chart (pecan halves). Published values differ by a few grams between references; for anything but bread, a few grams is noise.

Or stop converting by hand

Paste any recipe into RecipeTables and the whole thing converts at once — every ingredient, in one table, with a Cups/Grams switch that remembers which you use. It converts what the author wrote rather than inventing a weight the recipe never gave.

Try it on the recipe you're reading, or read why a cup isn't a cup — four volumes, the 25% flour problem, and the Australian tablespoon that's a third too big.

Convert a whole recipe, free

A link, the text, or a photo of a cookbook page — you get the recipe back as one table. No account needed.