Thyme is an aromatic herb that has many species and is used extensively to add a distinctive aroma and flavor to food. Its essential oil has many biological properties: antiseptic, carminative, antimicrobial and antioxidant, among others. The main active compound of thyme volatile oil is thymol. The objective of this study was to estimate the cost of manufacturing (COM) of two green processes (SFE: supercritical fluid extraction, and SD: steam distillation) to obtain thyme extract. The cost estimation was done using a class 5 methodology that defines COM as a weighed sum of five factors: fixed cost of investment, cost of operational labor, cost of raw material, cost of waste treatment and cost of utilities. The operational data used was obtained from literature. The scale-up procedure assumed that both the yield and the extraction time of the industrial process are equal to the laboratorial scale if the ratio between the solvent mass and the mass of particles inside the extractor is kept constant. Three operational conditions for SFE extraction were evaluated: 8 MPa/300 K, 15 MPa/313 K and 20 MPa/313 K and three conditions for SD were studied: 373 K, 448 K and 523 K. The COMs were estimated for US$ 8,016/ton as raw material cost, after several sources of raw material were contacted for pricing. For SD and SFE extracts, the COMs varied from US$ 210 to 1030/kg for SD volatile oil and from U$S 190 to 2,200/kg for SFE extracts. The price of the commercial essential oil sold in market depends on the specie of the thyme, and can range from US$ 150 to 280/kg. Thus, depending on the thyme specie and extraction conditions, the COMs estimated for SD and SFE extracts can compete with commercial product and between them.