There are 416.72 miles from Keller to Armstrong in south direction and 493 miles (793.41 kilometers) by car, following the I-37 S route.
Keller and Armstrong are 7 hours 15 mins far apart, if you drive non-stop .
This is the fastest route from Keller, TX to Armstrong, TX. The halfway point is Staples, TX.
Keller, TX and Armstrong, TX are in the same time zone (CDT). Current time in both locations is 10:03 am.
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