彼は非常に打算的な人で、得にならないことは一切しない。
He is a very calculating person who never does anything that doesn't benefit him.
打算的な結婚だと周りから陰口をたたかれた。
People whispered behind their backs that it was a marriage of convenience.
彼女の親切は打算的に見えるかもしれないが、実は心からのものだ。
Her kindness may look calculated, but it actually comes from the heart.