- Imperial College course: ~1 month at 10 hrs/week (~40 hours total). Beginner-level, flexible.
- DeepLearning.AI series: recommendation is 12 weeks at ~5 hrs/week (~60 hours), intermediate level.
- Course modules vary—according to course.careers, estimated timelines:
- Linear Algebra: 4–6 weeks
- Multivariable Calculus: 6–8 weeks
- Probability & Statistics: 6–10 weeks
- Capstone (integrative project): 8–12 weeks
- Flexible pacing means some complete faster, especially learners refreshing concepts.