FLATTEN

Flattens all the values from one or more ranges into a single column.

Parts of a FLATTEN function

=FLATTEN(range1, [range2, …])

Part

Description

range1

The first range to flatten.

range2

[optional] repeatable

Additional ranges to flatten.

Sample formulas

=FLATTEN(A1:B2)

=FLATTEN("top", A1:B2, "middle", B3:B4, "bottom")

Notes

  • Values are ordered by argument, then row, then column. So, the entire first row of an input is added before the second row (also known as row-major order).
  • Empty values are not skipped; the FILTER function can be used to remove those.

Examples

Make a copy

Flatten will append arguments in the order they are included in the formula. Arguments need not be range references.

 

A

B

C

D

1

1

2

Formula in D1: 

=FLATTEN(A1:B2, "sample middle", B3:B4)

1

2

3

4

 

2

3

 

5

 

3

4

 

6

 

4

5

     

sample middle

6

     

5

7

     

6

 

A more complex example, using the CONCAT (&) operator and SPLIT to do a simple cross join or Cartesian product on two lists.

 

A

B

C

D

E

1

A

1

Formula in D1: =ArrayFormula(SPLIT(FLATTEN(A1:A3 & "|" & TRANSPOSE(B1:B2)), "|"))

A

1

2

B

2

 

A

2

3

C

   

B

1

4

     

B

2

5

     

C

1

6

     

C

2

Related functions

true
Visit the Learning Center

Using Google products, like Google Docs, at work or school? Try powerful tips, tutorials, and templates. Learn to work on Office files without installing Office, create dynamic project plans and team calendars, auto-organize your inbox, and more.

Search
Clear search
Close search
Google apps
Main menu
2661456248150313268
true
Search Help Center
true
true
true
true
true
35
false
false