の重さ

…'s weight

→ の
phrase Rare #24,733
…'s weight Attaches to a noun or pronoun to refer to its weight.
JA: このバッグの重さはどれくらいですか?
EN: How much does this bag weigh?

このスーツケースの重さ、どれくらいあると思う?

How heavy do you think this suitcase is?

壁が屋根全体の重さを支えていた。

The walls were supporting the weight of the entire roof.

あれって、これと同じくらいの重さかな?

Do you think that’s about as heavy as this?

硬貨の価値は使われた金属の重さによって決まった。

The value of a coin was determined by the weight of the metal used.

この箱の重さはどれくらいあるの?

How much does this box weigh?

雪の重さで枝が折れてしまった。

The branch broke under the weight of the snow.