What finger do you wear a promise ring on?

A promise ring can be worn on any finger of either hand, regardless of the reason this particular type of ring is worn. In the case of pre-engagement, while the "any finger" choice is still valid, the ring is typically placed on the left ring finger.

Promise rings can carry a number of connotations, such as promising to abstain from sexual intercourse, drug use and other activities that compromise one's mental, emotional and physical purity, but the underlying theme is that promise rings are a sign of faith. This public show of one's dedication to faithfulness underscores the commitment made to a cause or person.