MMULT Function in Excel: Multiply Matrices

⏱ 1 min readUpdated 28 September 2026

MathLevel: ExpertAvailable in: Excel 2007+

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

MMULT multiplies two matrices. In practice it computes many weighted sums at once — quantities × price lists for many orders.

Syntax

=MMULT(array1, array2)
Argument What it means
array1 Columns must equal array2’s rows.

Examples

Example 1

=MMULT(B2:D50, G2:G4)

Order value for 49 orders × 3 products with prices in G2:G4.

SUMPRODUCT · MINVERSE

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