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BYROW

Dynamic arraysMicrosoft 365

Apply a LAMBDA to each row and return one result per row.

Syntax

BYROW(array, lambda)

Examples

=BYROW(B2:F2, LAMBDA(r, SUM(r)))

→ row totals as a spilled column

Related functions

BYCOLMAPLAMBDA

More Dynamic arrays functions

BYCOLCHOOSECOLSCHOOSEROWSDROPEXPANDFILTERGROUPBYHSTACKMAKEARRAYMAPPIVOTBYRANDARRAY

← All 510 functions

Syntax follows Microsoft’s documentation. Examples are written to be pasted into a cell and checked. Argument separators may be ; in your locale. The AI explainer runs on a free community model — verify anything important.