* Field of study: Some fields are more competitive than others, leading to longer post-doctoral periods and a slower path to a tenure-track position. Highly competitive fields like STEM often require several years of post-doctoral work and significant publications. Humanities fields might have different timelines.
* Quality of PhD program and dissertation: A strong PhD from a prestigious university with a well-regarded dissertation can open more doors and potentially shorten the path.
* Post-doctoral experience: Most academics undertake postdoctoral research fellowships (postdocs) after their PhD. The number of postdocs needed can range from zero to several, depending on the field and individual career trajectory. A successful postdoc with significant publications increases the chances of landing a tenure-track position.
* Networking and research productivity: Building a strong network within the academic community and consistently publishing high-quality research is crucial for securing a tenure-track position. This is a significant time investment in itself.
* Job market: The academic job market is highly competitive. Finding an open tenure-track position requires patience and perseverance.
* Type of Institution: Getting a professorship at a prestigious research university is significantly more difficult and competitive than at a smaller college or teaching-focused institution.
Rough Estimates:
While impossible to give a precise timeframe, a *very* rough estimate might range from 8 to 20+ years after completing a PhD. This assumes securing a tenure-track position, which is itself a significant hurdle. Many academics spend several years as postdocs before even applying for tenure-track jobs. Furthermore, after receiving a tenure-track position, one then needs to achieve tenure, which often takes several more years. After tenure, one could still have to be promoted to a full professorship.
In short, the path is highly variable and requires dedication, hard work, and a bit of luck. Focusing on producing high-quality research and building a strong network is more important than focusing on a specific timeframe.