how long does it take to get your phd in mathematics and engineering
March 9-12, 2017, is the Chemical Engineering Graduate Research Symposium, or Visit Weekend. If you are seriously considering Stanford's Chemical Engineering's PhD program for your doctoral work, please reserve these dates for your Stanford visit, as we will be unable to accommodate a request to visit at another time. How long does it take to get the PhD degree? The average time to earn a PhD degree is between 4-1/2 and 5-1/2 years. Some students finish a little earlier and some a bit later. If I have a master's degree from another university, do I need to get a MS from Stanford before pursuing a PhD? No.