No rule for this one
No ending or word group predicts the article of Euro. Learn it as a pair and say it out loud: der Euro.
Nouns ending in -o only take das 51.9% of the time, so that is not a rule we teach.
der Euro
It's der Euro. Euro is masculine, plural die Euro.
Das kostet fünf Euro.
That costs five euros.
No ending or word group predicts the article of Euro. Learn it as a pair and say it out loud: der Euro.
Nouns ending in -o only take das 51.9% of the time, so that is not a rule we teach.