How far is Glenwood Springs, CO from Castle Rock, CO?
The driving distance from Glenwood Springs, CO to Castle Rock, CO is about 183.7 miles (295.7 km), with a travel time of about 03h 02m by car.
- The straight-line flight distance is about 132.3 miles (212.9 km).
- For a round trip, plan for roughly 06h 05m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 02m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Colorado, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Glenwood Springs and Castle Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Glenwood Springs and Castle Rock.
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1
Start on Pine Street
37 m · 9 sec · Pine Street
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2
Turn right onto West 6th Street
581 ft · 21 sec · West 6th Street
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3
Enter the roundabout and take exit 3 toward Laurel Street
44 m · 3 sec · Laurel Street
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4
Exit the roundabout onto Laurel Street
136 m · 24 sec · Laurel Street
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5
Take the exit left
824 ft · 20 sec
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6
Merge slight left
145.3 mi · 2 hr 48 min
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7
Take the exit slight right toward US 6 East: 6th Avenue, Lakewood
1795 ft · 44 sec
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8
Merge slight left onto West 6th Avenue Freeway
7.9 mi · 9 min · West 6th Avenue Freeway
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9
Take the exit slight right toward I 25: Fort Collins, Colorado Springs
1 km · 59 sec
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10
Take the exit slight right toward I 25 South: Colorado Springs
2680 ft · 1 min
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11
Merge slight left onto North Valley Highway
26.6 mi · 30 min · North Valley Highway
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12
Take the exit slight right toward Wilcox Street, Wolfensberger Road
1213 ft · 32 sec
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13
Turn left onto East Wolfensberger Road
132 m · 21 sec · East Wolfensberger Road
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14
Continue on North Wilcox Street
2093 ft · 1 min · North Wilcox Street
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15
Turn left onto 5th Street
979 ft · 37 sec · 5th Street
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16
Turn right onto North Cantril Street
837 ft · 29 sec · North Cantril Street
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17
Arrive at your destination
0 m · 1 sec · North Cantril Street
Car Route Details
A richer read on the saved driving route between Glenwood Springs and Castle Rock.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Laurel Street
Merge slight left
145 mi · 02h 48m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Glenwood Springs and Sunny near Castle Rock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Glenwood Springs to Castle Rock?
The road trip is about 183.7 miles (295.7 km) and usually takes 03h 02m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Dillon is a useful midpoint, sitting about 91.3 miles from Glenwood Springs and 92.5 miles from Castle Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 132.3 miles (212.9 km), while the road route adds roughly 51.4 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 10:54 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.96 one way or $47.93 round trip. Estimated CO2 is about 57.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Glenwood Springs and Sunny near Castle Rock.
Stop Ideas Near Dillon
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Dillon.
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Flight Path Map
This map shows the direct air route between Glenwood Springs and Castle Rock. Straight-line distance: 132.26 mi (212.85 km).
#1 Glenwood Springs
City in Colorado
| Population | 10,222 |
| Coordinates | 39.5505400, -107.3247800 |
| Altitude | 1756 |
| Country | United States |
#2 Castle Rock
The most populous city in Douglas County, Colorado.
| Population | 70,567 |
| Coordinates | 39.3722100, -104.8560900 |
| Altitude | 1897 |
| Country | United States |
End: Cantril Street (-104.856315, 39.3722)
Estimated Travel Time
Distance: 296 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 07m |
| 40 mph (64.37 km/h) | 04h 35m |
| 50 mph (80.47 km/h) | 03h 40m |
| 60 mph (96.56 km/h) | 03h 03m |
| 70 mph (112.65 km/h) | 02h 37m |
| 80 mph (129 km/h) | 02h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $23.96 | $47.93 |
| Mid-grade | $4.08 | $26.46 | $52.93 |
| Premium | $4.39 | $28.45 | $56.91 |
| Diesel | $4.74 | $30.70 | $61.39 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Colorado · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.