Spanish phrase
¿Cuál es ~ por ~?
Meaning
What is the ___ per ___?
When to use it
Asks for the unit price. Used when checking how much one unit costs in shops or markets, neutral everyday tone.
Example dialogue
¿Cuál es el precio por kilo?
What is the price per kilo?
Cuesta 3 euros el kilo.
It costs 3 euros per kilo.