Casper to Castle Rock: Road Trip Guide & Distance

How far is Casper from Castle Rock?

The distance from Casper to Castle Rock is 253.1 miles (407.3 km) as the crow flies. Castle Rock is located SSE of Casper. By car, the driving distance is approximately 316.3 miles, taking about 6h 22min. A direct flight would take roughly 1h 1min. Both are located in United States — Casper in Wyoming and Castle Rock in Colorado.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Casper and Castle Rock. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.