There are 129.63 miles from Alton to California in west direction and 159 miles (255.89 kilometers) by car, following the I-70 W route.
Alton and California are 2 hours 33 mins far apart, if you drive non-stop .
This is the fastest route from Alton, IL to California, MO. The halfway point is New Florence, MO.
Alton, IL and California, MO are in the same time zone (CDT). Current time in both locations is 2:23 pm.
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