The aim of this work, proposed for undergraduate students and teachers is the Calibration of temperature of tungsten filament bulb from electric measurements that are simple and precise and also the power dissipated across the filament under considerable limitations by following a simple heat transfer model. Most of the filament- bulbs exhibit resistivity and yield a high temperature at the burning point. In this scenario, an experiment is performed by using available low power incandescent bulbs. The experimental results obtained, at higher temperature of the filament using empirical formula, were compared with those of resistivity of the material, in terms of linear expansion relation. The melting and boiling points of Tungsten is 3683 Kelvin and 5933 Kelvin respectively