The World Expo is held every five years and typically runs for about six months each time.

Quick Scoop

  • World Expos (also called world’s fairs or International Registered Exhibitions) are now scheduled on a fixed five‑year cycle.
  • Each event usually lasts from several weeks up to six months; in practice, recent World Expos run for roughly half a year.
  • Between two World Expos, smaller “Specialized Expos” can take place in the intervening years, but not in the same country within 15 years of that country’s last Expo.

Recent and upcoming examples

  • Expo 2020 (Dubai) ran from October 2021 to March 2022 after a pandemic delay, keeping the original “2020” name.
  • Expo 2025 is being held in Osaka, Japan, from April 13 to October 13, 2025.
  • The next planned World Expo after that is scheduled for Riyadh, Saudi Arabia, in 2030.

So if you’re wondering “how often is the World Expo,” you can think of it as a big, six‑month global showcase that comes around every five years.

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