Abstract: A programmable computerized telephone cost metering device which gives a visual display of the cost (per unit of time) of a call before the user completes dialing his intended number, total cost of call in progress, and total of costs for day or month. Metering device may be programmed for user's telephone exchange and type of service he has contacted with his telephone company, and programing may be inputted and updated by any of several methods including: direct user inputting of information, insertion of an EPROM chip, voice recognition device, and an automatic inputting of data from a remote data bank by means of a built in MODEM. Security of access is assured by use of user programmed access code. The metering device may contain a built in telephone or may be used with existing telephone instruments.