French phrase
Combien ~ faut-il ~ ?
Meaning
How much ___ is needed ___?
When to use it
Asks about the amount or quantity needed. It is neutral and often concerns costs or supplies.
Example dialogue
Combien d'argent faut-il pour louer un studio à Paris ?
How much money is needed to rent a studio in Paris?
Il faut environ 800 euros par mois.
About 800 euros per month is needed.