Miles between Thornton, CO and Grand Rapids, MI

There are
1,157 mi
from Thornton, CO to Grand Rapids, MI

That's the driving distance. It would take 20 hours 35 mins to go from Thornton, Colorado to Grand Rapids, Michigan.

The flight distance (direct flight from Thornton, CO to Grand Rapids, MI) is 1,020.41 mi.

1,157 mi = 1.61 kms