考えても

even if you think about it

→ 考える
phrase Uncommon #16,895
even if you think about it ても adds the sense of “even if” or “even though.”
JA: 考えても答えが分からない。
EN: Even if I think about it, I can't figure out the answer.

考えてもみろ

Just think about it.

— パンズ・ラビリンス (2006)

おい、トム、考えてもみろよ。

Hey, Tom, just think about it.

いくら考えても思い出せない

No matter how hard I think, I can't remember.

— 生きる (1952)

考えても仕方のないことは考えるな

Don't dwell on things you can't change.

— Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020)

いくら考えても、わかりません。

No matter how hard I think about it, I just don't get it.