There are 16.48 miles from Riverside to Ontario in northwest direction and 23.83 miles by car, following the route.
Riverside and Ontario are 30 mins far apart, if you drive non-stop.
This is the fastest route from Riverside, CA to Ontario, CA. The halfway point is .
Riverside, CA and Ontario, CA are in the same time zone (PDT). Current time in both locations is 9:26 pm.
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