A Turing machine running in time $t(n)$ can be simulated by circuits of size $O(t(n)\log t(n))$; see e.g. https://courses.cs.washington.edu/courses/cse532/04sp/lect05.pdf .
More generally, a similar argument shows that a Turing machine running in time $t(n)$ and space $s(n)$ can be simulated by circuits of size $O(t(n)\log s(n))$.