Spreadsheet Practice

MAKEARRAY function

Quick answer

MAKEARRAY builds an array of a given number of rows and columns by calling a LAMBDA with each row and column number.

Syntax
=MAKEARRAY(rows, cols, lambda)
Most common use
=MAKEARRAY(A2,A2,LAMBDA(r,c,r*c)) returns 1 (A 3 × 3 multiplication table)

Use it for multiplication and distance tables, simple calendars, or any grid whose values come from their position, all from one formula.

Available in
Excel 2024 and Microsoft 365
Category
Dynamic array functions
Returns
An array of the size you asked for.
Google Sheets
Available in Google Sheets.

Syntax

=MAKEARRAY(rows, cols, lambda)

ArgumentRequired?What it is
rowsRequiredHow many rows to make.
colsRequiredHow many columns to make.
lambdaRequiredA LAMBDA with two inputs, the row number and the column number, that returns the value for that position.

Examples

Each result below is calculated from the sample sheet by our formula engine, the same one that grades the practice.

CellFormulaResultWhat it shows
C2=MAKEARRAY(A2,A2,LAMBDA(r,c,r*c))1spills 3 × 3A 3 × 3 multiplication table
C6=MAKEARRAY(2,3,LAMBDA(r,c,IF(r=c,1,0)))1spills 2 × 31 where the row and column numbers match
G2=SUM(MAKEARRAY(A2,A2,LAMBDA(r,c,r+c)))36Built and added up without showing the grid

Try it live

This is the sample sheet. Change any number or text, or edit a formula, and the results update.

Show the sample data as a table
Size
312336
246
369
100
010

Practice MAKEARRAY

Graded instantly, then re-checked on changed data.

Price grid

In B5, use MAKEARRAY to build a grid with the number of rows in B1 and columns in B2, where each value is the row number times the column number times the unit price in B3.

Common mistakes

What you seeWhy, and how to fix it
#VALUE!rows or cols is less than 1, or the LAMBDA doesn't have exactly two inputs.
#CALC!The LAMBDA returns more than one value for a position.

Tips

  • =MAKEARRAY(12,1,LAMBDA(r,c,DATE(2026,r,1))) lists the first day of each month.

Questions

How do I make a multiplication table with one formula?

=MAKEARRAY(10,10,LAMBDA(r,c,r*c)).

What is the difference between MAKEARRAY and SEQUENCE?

SEQUENCE fills a grid with evenly spaced numbers. MAKEARRAY lets a LAMBDA decide each value from its row and column.

Updated Checked by running: every formula on this page was run by our formula engine on .