Due to continuous consumption, increasing energy demand and harmful exhaust gases of fossil fuels in transportation and power generation lead to guessing about alternative fuels. The chemical and physical properties of waste cooking oil were measured and Analysed according to ASTM standards.Their utilization as cooking fuel can bring numerous benefits not only for urban but also for rural communities. The paper focuses on characterizing VCOs(vegetable cooking oil) and UCOs(used cooking oil) as fuels for the household cooking application using a pressurized cooking stove. Physical properties such as auto-ignition point, auto-ignition time, flash point, density and viscosity of VCOs(vegetable cooking oil) play the role in combustion. Some properties of these oils were measured and characterized. Waste cooking oil was preheated to 90°C before oil nozzle. The oil was used directly used as a fuel in the pressurized cooking stove, it is possible to improve the combustion performance, thus by reducing the ignition time and incomplete combustion. The main target is to determine the quality and performances of the oils combustion. Crude VCO(vegetable cooking oil) gave the fastest auto-ignition time 30 s when compared with the other oils than other oils.