This study aims to determine the effect of students' self-efficacy levels with learning outcomes on static fluid material. This type of research is used the Ex Post Facto method. The sample of this study was 60 students of class XI IPA SMA Negeri 1 Pemangkat. The data collection technique used was a static fluid material test instrument with 10 multiple choice questions and 4 essay questions, and a non-test instrument in the form of a self-efficacy questionnaire with 25 statements. The results of data analysis obtained: (1) students' self-efficacy is in the medium category,(2) student learning outcomes are in the medium category, (3) self-efficacy can be used as a predictor in learning outcomes with a significance value of 0,046 < 0,05, (4) the large contribution of self-efficacy to student learning outcomes on static fluid material class XI IPA SMA Negeri 1 Pemangkat is 6.7%, and 93.3% is influenced by other factors not examined in this study.