miscalculate
🇺🇸
/ˌmɪsˈkælkjuleɪt/
🇬🇧
/ˌmɪsˈkælkjuleɪt/
To make a mistake in thinking about or planning something.
If you miscalculate how much paint you need, you might have to go back to the store.
ペンキがどれくらい必要かを誤算すると、店に戻る必要があるかもしれません。
To understand a situation incorrectly.
He miscalculated how quickly the project could be completed.
彼はプロジェクトがどれくらい早く完了するかを誤算しました。