The results of temperature-dependent surface tension calculations of pure liquids aluminium (933-1200 K) and iron (1811-2500 K), in the framework of the theoretical considerations suggested by Eyring, are presented. It is observed that the surface tension decreases linearly with temperature. The calculated surface tension data are fitted as gamma = 985-0.275(T - Tm) and gamma = 1560-0.387(T - Tm) for Al and Fe, respectively. Moreover, the surface tension (gamma(LV)) at melting point, surface energy (gamma(SV)) and crystal-melt interfacial energy (gamma(SL)) are calculated for many metals. The agreement between the calculated and the reported measured values is reasonable. (C) 2011 Elsevier B.V. All rights reserved.