Taxi fare in Rome from Hotel Apollo Roma, Via Dei Serpenti 109,00184 Rome, Italy to Creazioni d'arte di Clelia La Gioia, Via Castelfidardo, 17, 04100 Latina, Italy

Be wary of non-official cab drivers, especially if you need to go to the airport. Do not be rushed into entering any taxi; take your time and double check that the taxi is an official one.
Charge of 1 euro for each piece of baggage exceeding 35x25x50 cm
The official taxies are yellow or white, and have meters. Look to make sure it has an official TAXI sign.
There is a 10% discount for direct runs to the hospitals in Rome and for women traveling alone between 21.00 and 01.00.
There is 1 euro supplement for each passenger after the fourth.
More useful tips in wikitravel

more information on : Comune di Roma

Taxi Fare Calculator