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The problem of plastic waste in Indonesia has yet to be resolved. The amount of plastic waste produced by the Indonesian population is 28.4 thousand tons / day. Surely this problem gives the impression of environmental pollution considering that plastic waste is difficult to be degraded naturally. Plastic structure is a composition of petroleum hydrocarbon components. Surely, plastic waste can be converted into liquid oil. This study discusses the volume of liquid hydrocarbon oil produced from the cracking process of Polypropylene (PP) plastic waste. The pyrolysis process was carried out at 275-350 °C and the length cracking time was 240 minutes. From the research, the total of volume condensate was 1,700 ml or 85% of the mass of the raw material used. From the total volume of condensate produced, there were 8% obtained of solid condensate. So, The liquid oil that was produced from the process was 1,564 ml. From the research that has been done, it can be concluded that polypropylene plastic waste can be converted into liquid oil. The volume of liquid oil produced from the pyrolysis process is 1,564 ml or 78.2% of the weight of the raw material being tested