MAP Function in Google Sheets: Syntax, Examples & Compatibility
Learn how to transform each element of an array using a small named LAMBDA rule in Google Sheets. Includes syntax, two verified-by-reasoning results, troubleshooting and portability notes.
Verification status: Official documentation referenced; example outcomes independently reasoned or arithmetically checked where stated. Not executed in Google Sheets. How formula examples are checked
Quick answer: transform each element of an array using a small named LAMBDA rule in Google Sheets. The reproducible examples below use explicit values so the formula’s meaning is testable without a large workbook.
Evidence: The function name and syntax are documented in the linked vendor function reference. Expected outputs were independently reasoned or checked outside the application. These are not native Google Sheets test results. A guide being published here does not certify every software release or file-import scenario.
Syntax and arguments
=MAP(array1, [array2, ...], LAMBDA)
Each value is passed to the LAMBDA expression. Provide one LAMBDA parameter per input array.
Best use case: Transform each element of an array using a small named LAMBDA rule.
Set up the example sheet
Enter A2=2, A3=3, A4=5 as quantities requiring a doubled order estimate.
Enter the formula in an unused cell. For a formula returning several values, leave an unobstructed area where those values can expand. These formulas use comma argument separators in a typical English-language locale; commas or semicolons inside quoted text are data, not argument separators. Adapt the separator if your regional settings require it.
Worked example 1: MAP with known input
=MAP(A2:A4,LAMBDA(q,q*2))
Expected output: vertical values 4, 6, 10.
Each quantity is passed to the inline function and multiplied by two.
Worked example 2: a second MAP case
=MAP(A2:A4,LAMBDA(q,q+1))
Expected output: vertical values 3, 4, 6.
The LAMBDA adds a fixed one-unit safety allowance to every entry.
Compare both results before replacing literal values or short sample ranges with your own workbook data. For a spilling formula, compare every output cell, not only the top-left result.
Practical advice and troubleshooting
When this formula helps: MAP makes a transformation rule explicit; ARRAYFORMULA(A2:A4*2) may be shorter for a simple arithmetic operation.
Important edge case: The LAMBDA parameter count must agree with the number of input arrays, and a LAMBDA must return a value for each input item.
If the result differs, first verify the text-versus-number types of the input cells, the argument separators for your locale, and the range size. For dynamic arrays, inspect occupied cells in the output area. An error that looks like a missing function may reflect a software version rather than incorrect data.
Compatibility and version considerations
Excel MAP is not documented as an Excel function under that name; analogous operations may use BYROW, dynamic arrays or other formulas.
Check your installed release for availability and dynamic-array support.
Function availability and parameter behavior must be judged for the specific application and release; a function documented in one spreadsheet does not automatically work in another.
Related guides and official documentation
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Google Sheets documentation for MAP — function syntax and current vendor information.
Editorial verification: Vendor catalogue referenced as of 2026-10-12. The two example outputs are independently reasoned; no native application run, screenshot, or version-specific output is claimed. Review the editorial testing standards if you require stronger proof before importing a workbook.