French Phrase
Il me faut un gallon de lait.
Meaning
Literally, "It is necessary for me a gallon of milk," which idiomatically means "I need a gallon of milk." The phrase uses the impersonal "il faut" to express a personal need in a slightly formal tone.
When to use
Use this sentence when you are shopping for a large amount of milk, ordering in a restaurant that serves American‑style portions, or simply stating a need for a gallon of milk in conversation.
✦Grammar Breakdown
Ilmefautungallondelait
Il faut (impersonal)
The construction "Il faut" is impersonal and means "it is necessary"; it never changes with the subject.
me (indirect object pronoun)
"me" is an indirect object pronoun placed before the verb, indicating that the necessity applies to the speaker.
Measurement + de
When a quantity is expressed (un gallon), the partitive "de" follows the measurement, not the partitive article "du" or "des".
gallon (unit)
A gallon is a foreign unit of volume (≈ 3.785 L). In French it is kept in English form and treated as a masculine noun.
🗨In Conversation
Quel type de lait désirez‑vous ?
What kind of milk would you like?
Il me faut un gallon de lait, s’il vous plaît.
I need a gallon of milk, please.
✕Common Mistakes
Il faut moi un gallon de lait.
The pronoun must precede the verb; "me" goes before "faut".
Il me faut un gallon du lait.
After a measurement you use the simple preposition "de", not the partitive article "du".
Il me faut un gallon lait.
The noun "lait" must be introduced by "de" after the quantity.
↔Alternatives
J’ai besoin d’un gallon de lait.
I need a gallon of milk.
Je voudrais un gallon de lait.
I would like a gallon of milk.
Il me faudrait un gallon de lait.
I would need a gallon of milk.
Cultural Tip
In France milk is normally sold by the litre, not by the gallon. The phrase is therefore most useful when speaking with someone familiar with North‑American measurements, or when you are abroad in a country that uses gallons. Using "gallon" can also signal a casual, slightly humorous tone because it sounds foreign to native French ears.