Frankie Muniz is generally reported to be about 5 feet 5 inches tall (around 1.65 m) , with some sources listing him slightly shorter at about 5 feet 4 inches (1.63 m) or slightly taller at 5 feet 6 inches (1.68 m).

Quick scoop

Most reliable biography and body‑measurement style sites list Frankie Muniz at approximately 5′5″ (1.65 m).

Fan and celebrity‑height trackers sometimes round him down to 5′4″ (1.63 m) or up to 5′6″ (1.68 m), which explains why different forums and discussions quote slightly different numbers.

Putting those together, a fair takeaway is that Frankie Muniz is in the mid‑5‑foot range, right around 5′5″.📏

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