The duration of a Tableau course online typically ranges from <strong data-start="126" data-end="143">4 to 12 weeks, depending on the course level and learning pace. Beginner courses may take <strong data-start="220" data-end="235">20&ndash;30 hours, while advanced or certification programs can extend to <strong data-start="292" data-end="307">40&ndash;60 hours or more, especially if they include projects and assessments. Self-paced courses offer flexibility, allowing you to learn at your own speed, while instructor-led programs may follow a weekly schedule. Ultimately, your commitment and consistency will determine how quickly you complete the course and start applying Tableau skills in your career.