5,229.47 miles
A good estimate of the distance between California and Wales would be about 5,300 miles or 8,420 kilometers. However, California is a big state, covering 163,696 square miles (423,970 square kilometers), so the exact distance would have to calculated from your exact departure point.
160 miles
20.45 miles
188.81 miles
25.31 miles
26.23 miles
361.13 miles
350.64 miles
It is about 350 miles.
Approximately 210 miles.
About 180 miles.
About 400 miles.