The minimum legal age to rent a car depends on the country where you’re renting. In the USA and Canada, drivers must typically be at least 21. However, some states and provinces allow drivers as young as 18 years old to rent a car. In Europe and Asia, the minimum age varies between 18 to 21 years old but some agencies might require drivers to be at least 25. Keep in mind that most agencies add daily fees for renters below 25 years old.