INTERNATIONAL TAXI FARE CALCULATOR

• If you are getting a taxi by phone, you can expect the taxicab to come with the taximeter already running. That amount cannot, however, exceed 3.40 € during the day, 4.20 € night, or 4.50 € on Fridays, Saturdays or holidays at night.
• There is a minimum amount for taxi drives to the airport (20 €) and if you call a taxi by phone (7 €).
• Motorway tolls are paid separately by the passenger.
• Taxi drivers are only required to carry change for payment up to 20 €.
• More useful tips in wikitravel

more information on : Instituto Metropolitano del Taxi (pdf)