A standard pillow is typically 20 x 26 inches (about 51 x 66 cm).

Quick Scoop

  • Standard pillow size: 20 inches wide x 26 inches long.
  • This is the most common everyday bed-pillow size in the US and many other regions.
  • It fits standard pillowcases and works on any bed size from twin to king/California king.

If you’re shopping, anything labeled “standard pillow” will almost always be around 20" x 26", even if a brand’s measurements vary by a small margin.

TL;DR: A standard pillow is about 20" x 26" (51 x 66 cm).

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