John Mayer was about 32 years old when he dated Taylor Swift, who was 19 at the time.

Quick Scoop

The Age Gap

  • Multiple entertainment and commentary pieces state that during their brief relationship, John Mayer was 32 and Taylor Swift was 19.
  • Coverage often frames their 12–13 year age gap as a key part of why the relationship is still so discussed today.

When They Dated

  • Reports generally place their romance around late 2009 to early 2010, following their musical collaboration on “Half of My Heart.”
  • Articles and fan discussions still revisit this period, especially when talking about songs like “Dear John,” which many believe was inspired by that relationship.

Why It’s Still a Trending Topic

  • The combination of the short but high-profile romance, the noticeable age difference, and Taylor Swift’s later songwriting references keeps the question “how old was John Mayer when he dated Taylor Swift” active in forums and pop-culture news.

Information gathered from public forums or data available on the internet and portrayed here.