Depending on its length, the United States Department of Agriculture reports that the typical weight of a carrot is between 50 and 72 grammes. A carrot of average size weighs approximately 61 grammes.
The most accurate method for estimating the weight of a carrot is to measure its length. A carrot with a length of 5.5 inches or less and a weight of 50 grammes or less is considered a small carrot. A carrot longer than 7.25 inches must weigh at least 72 grammes. The weight of a cup of carrots varies depending on how they are prepared. A cup of sliced carrots weighs roughly 122 grammes, whereas a cup of grated carrots weighs about 110 grammes and a cup of chopped carrots weighs approximately 128 grammes.