COLUMNS Function (LibreOffice Calc)
The COLUMNS function returns the number of columns in a given range or array. It is used in dynamic formulas, array construction, indexing, and scalable lookup logic.
Compatibility
▾| Excel | ✔ |
| Gnumeric | ✔ |
| Google_sheets | ✔ |
| Libreoffice | ✔ |
| Numbers | ✔ |
| Onlyoffice | ✔ |
| Openoffice | ✔ |
| Wps | ✔ |
| Zoho | ✔ |
What the COLUMNS Function Does ▾
- Counts the number of columns in a range or array
- Works with static ranges and dynamic arrays
- Useful for INDEX/MATCH, OFFSET, and array‑driven formulas
- Helps build scalable, correction‑proof spreadsheet logic
Syntax ▾
COLUMNS(reference)
Arguments
- reference:
A range or array whose number of columns will be counted.
Basic Examples ▾
Count columns in a range
=COLUMNS(A1:D10)
→ 4
Count columns in a single column
=COLUMNS(B1:B100)
→ 1
Using a dynamic array
=COLUMNS(FILTER(A1:D100; A1:A100>0))
Using an array literal
=COLUMNS({1,2,3})
→ 3
Advanced Examples ▾
Dynamic INDEX selection
=INDEX(A1:Z1; COLUMNS(A1:D1))
→ returns the last column in A1:D1
Create a dynamic header count
="Total Columns: " & COLUMNS(A1:Z1)
Combine with OFFSET for scalable ranges
=SUM(OFFSET(A1; 0; 0; 1; COLUMNS(A1:D1)))
Use with MATCH to validate lookup ranges
=IF(MATCH("Price"; A1:D1; 0) <= COLUMNS(A1:D1); "OK"; "Out of Range")
Generate a dynamic sequence of column numbers
=COLUMN(A1:INDEX(1:1; COLUMNS(A1:D1)))
Use with CHOOSECOLS for dynamic extraction
=CHOOSECOLS(A1:Z10; SEQUENCE(1; COLUMNS(A1:D1)))
Edge Cases and Behavior Details ▾
COLUMNS returns:
- A single integer
- Always ≥ 1 for valid ranges
Behavior details
- Works with ranges, arrays, and array formulas
- Does not count rows
- Does not evaluate content, only structure
- Errors inside the range do not affect the result
- Invalid references propagate errors
Invalid reference → Err:502
Common Errors and Fixes ▾
Err:502 — Invalid argument
Cause:
- Reference is malformed
- Reference is text that cannot be parsed
Fix:
- Use INDIRECT for text references
- Validate cell/range references
Unexpected result
Cause:
- Using COLUMNS on a spilled array without understanding its width
Fix:
- Inspect the array with the formula bar
- Use WRAPCOLS/WRAPROWS (Excel) equivalents if needed
Best Practices ▾
- Use COLUMNS to build scalable, correction‑proof formulas
- Combine with INDEX for dynamic column selection
- Use with OFFSET for dynamic range sizing
- Use with MATCH to validate lookup ranges
- Pair with COLUMN for array‑driven logic
COLUMNS is essential for building dynamic, self‑adjusting formulas — especially when constructing lookup tables, dashboards, and array‑driven workflows.
Related Patterns and Alternatives ▾
- COLUMN — returns the column index of a reference
- ROWS / ROW — row equivalents
- INDEX — extract values by row/column
- MATCH — find column positions
- OFFSET — dynamic range shifting
- CHOOSECOLS — extract specific columns
By mastering COLUMNS, you can build robust, scalable, and dynamic spreadsheet logic in LibreOffice Calc.