Today almost every one use a taxi, in many countries the rate is agreed upon the service is taken, in many cases the rate is too low or high and the service is not taken, on the other hand taximeters provides good estimated of the service but are too complex to install in a cab and maintain. Today we can get advance of GPS technology to improve and enhance the taximeters while the rate is calculate base on the different features of a city. We propose a novel algorithm to calculate rate using GPS data and base on the different features of a city; we build a prototype and test it with very good results.