How to Say "third power" in Spanish
The Spanish word for “third power” is “cubo” — B1 level.
English → SpanishB1
nounB1
mathematics (e.g., 'al cubo')

Examples
El volumen de un cubo se calcula elevando la longitud de su lado al cubo.
The volume of a cube is calculated by raising the length of its side to the third power.
Este rompecabezas es un cubo mágico de colores.
This puzzle is a magical colored cube (like a Rubik’s Cube).
Tres al cubo es veintisiete (3³ = 27).
Three cubed is twenty-seven.
Math Usage
When talking about numbers raised to the power of three (e.g., 2³), you use the phrase 'al cubo' (two to the cube).
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