NORM.DIST Function in Excel: Bell-Curve Probability

⏱ 1 min readUpdated 28 September 2026

StatisticsLevel: ExpertAvailable in: Excel 2010+

In this article
  1. Syntax
  2. Examples
  3. Example 1
  4. Related functions

NORM.DIST gives the probability (cumulative) or the curve height (density) of a normal distribution at a value.

Syntax

=NORM.DIST(x, mean, standard_dev, cumulative)
Argument What it means
cumulative TRUE = probability of being at or below x.

Examples

Example 1

=1-NORM.DIST(60, 45, 8, TRUE)

Chance a delivery takes over 60 minutes when the mean is 45 and SD is 8 (about 3%).

NORM.INV · STANDARDIZE

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