Until now, researcher use the Ranz-Marshall analogy and Stagnant Film model to calculate the rate of heat and mass transfer. This research used both of the approach to look at the suitable model to Butanol droplet. The research also comparing Ranz-Marshall analogy, Stagnant Film model to Modified Stagnant Film model which has been proposed by E.A. Kosasih and M. I. Alhamid. This research look at the rate of droplet evaporation which is formed at the tip of 0.1 mm of K type thermocouple. The air flowing around droplet is varied by its temperature and velocity. From the data, it can be obtained the Reynolds number (Re), Prandtl (Pr), Schmidt (Sc), Nusselt (Nu), and Sherwood (Sh). The correlation between these dimensionless numbers show that Ranz-Marshall model have better data correlation than Stagnant Film and Modified Stagnant Film model.