There are
1,769 mi
from Thornton, CO to Ramsey, NJ
That's the driving distance. It would take 1 day 7 hours to go from Thornton, Colorado to Ramsey, New Jersey.
The flight distance (direct flight from Thornton, CO to Ramsey, NJ) is 1,614.37 mi.
1,769 mi = 1.61 kms