Casper to Roy: Road Trip Guide & Distance

How far is Casper from Roy?

The distance from Casper to Roy is 316 miles (508.5 km) as the crow flies. Roy is located WSW of Casper. By car, the driving distance is approximately 379.2 miles, taking about 7h 38min. A direct flight would take roughly 1h 8min. Both are located in United States — Casper in Wyoming and Roy in Utah.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare.

Coordinates come from public place data for Casper and Roy. 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.