Syntax

POISSON.DIST(x, mean, [cumulative])

Arguments

The printed syntax lists 3 argument(s), in order:

  • x
  • mean
  • umulativ optional

“optional” marks an argument Google prints in square brackets; “repeatable” marks one Google prints with “…”.

Description from Google Docs Editors Help

“Returns the value of the Poisson distribution function (or Poisson cumulative distribution function) for a specified value and mean.”

Google’s help article for POISSON.DIST →

Source: Google Docs Editors Help, “Google Sheets function list” (support.google.com/docs/table/25273), record record 379 of 516, data fetched 28 September 2026. Data month: September 2026.