by weight

Idioms  

1. According to weight rather than height, volume, or some other measure. For example, In Europe bread often is sold by weight rather than by the loaf. [c. a.d. 1000]

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Example Sentences

Because corn is purchased by weight but sold by volume, margins are unusually high.

From The Wall Street Journal

Panama, Liberia and the Marshall Islands are the most common FOC states, representing 46.5% of all merchant ships by weight, but Gambia has become a player in recent years.

From BBC

As a result, people eating whole foods consumed 57 percent more food by weight overall.

From Science Daily

“I measure extra-credit points and graph the bar chart by weight. Hang the bag of litter or bottles or whatever you collect on this scale, and it’ll tell you how much you got. It’s honor code, so just mark down the weight and dispose of the litter appropriately. I’ll keep all this up front for you until it’s time to leave for the day so you don’t have to lug it around. Cool?”

From Literature

Carlson measures it by weight.

From Literature