A1 and R1C1
A1 ↔ R1C1 Cell Reference Converter
Convert a single absolute-style cell reference between A1 notation and R1C1 notation. This utility focuses on direct cell coordinates, not relative R[−1]C[2] expressions.
A1 → R1C1
$AA$27 → R27C27
R1C1 → A1
R27C27 → AA27
Scope of this converter
A1 notation identifies a cell with a column label and row number, while R1C1 expresses both coordinates numerically. Relative bracketed R1C1 references depend on a base cell, so this first version intentionally handles direct row/column coordinates only.