Distance from Castle Rock to Greeley
How far is it from Castle Rock to Greeley? About 73 mi in a straight line and 95 mi by road. Driving time, flight time, midpoint and route details.
Castle Rock and Greeley are about 73 mi (118 km) apart in a straight line. By road that works out to roughly 95 mi (153 km), a drive of about 1 hr 42 min. A nonstop flight covers the great-circle distance in approximately 38 min.
| Straight-line distance | 73 mi / 118 km |
| Road distance (est.) | 95 mi / 153 km |
| Driving time (est.) | 1 hr 42 min |
| Nonstop flight (est.) | 38 min |
| Driving fuel (est., 1-way) | $12 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 39.898, -104.783 |
How these estimates work
Straight-line distance uses the haversine formula on each city's coordinates. Road distance applies a circuity factor (~1.2–1.4×) and driving time a blended average speed. Flight time uses typical jet cruise speed plus ~30 minutes for taxi, climb and descent. Treat all figures as planning estimates.
Frequently asked questions
Castle Rock to Greeley is about 73 mi (118 km) in a straight line, and roughly 95 mi (153 km) by road.