How big is California's economy compared to world countries ?

Which world economies are comparable to economy of California by GDP ? How big is California's economy in comparison to other world countries ?

The nominal GDP of California in 2019 was around 3.1 trillion USD. It makes California's economy comparable to United Kingdom or France. In 2019 both countries had nominal GDP approx. 2.7 trillion USD and GDP PPP approx. 3.1 trillion USD.