There are 396.23 miles from Calhoun to Gem in west direction and 452 miles (727.42 kilometers) by car, following the I-70 and US-40 route.
Calhoun and Gem are 8 hours far apart, if you drive non-stop .
This is the fastest route from Calhoun, MO to Gem, KS.
Calhoun, MO and Gem, KS are in the same time zone (CDT). Current time in both locations is 3:32 pm.
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