implies expressing something in terms of something else: if said/compared to like.

Commonly used for unit conversion.

このバイクは、車で言うとランボルギーニみたいものだ。 This bike is the kind that a Lamborghini would be for cars.

「Cool」って日本語で言うとどうなる? What would be the Japanese way to say something with the same meaning as "cool"?

日本で言うとパンみたいなもの? Would this be considered bread in japan? (hehe get it because its so fucking sweet and it sucks)

https://bunpro.jp/grammar_points/で言うと