How far is Castle Rock, CO from Avon, CO?
The driving distance from Castle Rock, CO to Avon, CO is about 132.4 miles (213 km), with a travel time of about 02h 38m by car.
- The straight-line flight distance is about 90.6 miles (145.8 km).
- For a round trip, plan for roughly 05h 16m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 38m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Statutory Town in Clear Creek County, Colorado, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Snow Showers
Snow Showers
Driving Route Map
The map below follows the saved road route between Castle Rock and Avon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Rock and Avon.
-
1
Start on North Cantril Street
27 m · 8 sec · North Cantril Street
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2
Turn left onto 3rd Street
641 ft · 23 sec · 3rd Street
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3
Exit the roundabout onto 3rd Street
135 m · 18 sec · 3rd Street
-
4
Turn right onto North Wilcox Street
2807 ft · 2 min · North Wilcox Street
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5
Take the ramp straight toward I 25 North
1715 ft · 42 sec
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6
Merge slight left
26.6 mi · 30 min
-
7
Take the exit slight right toward US 6 West: 6th Avenue
945 ft · 23 sec
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8
Keep slight right to continue on US 6 West: 6th Avenue, Lakewood
2200 ft · 54 sec
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9
Continue on Dinosaur Diamond Prehistoric Highway
1.5 km · 2 min · Dinosaur Diamond Prehistoric Highway
-
10
Keep slight left to continue on US 6
609 ft · 11 sec
-
11
Merge slight left onto West 6th Avenue Freeway
7.6 mi · 9 min · West 6th Avenue Freeway
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12
Take the exit slight right toward I 70 West: Grand Junction
1.1 km · 56 sec
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13
Merge slight left
93.8 mi · 1 hr 50 min
-
14
Take the exit slight right toward Avon
921 ft · 22 sec
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15
Keep slight left to continue on Avon
74 m · 6 sec
-
16
Enter the roundabout and take exit 3 toward Avon Road
676 ft · 14 sec · Avon Road
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17
Exit the roundabout onto Avon Road
156 m · 10 sec · Avon Road
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18
Enter the roundabout and take exit 2 toward Avon Road
47 m · 3 sec · Avon Road
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19
Exit the roundabout onto Avon Road
85 m · 6 sec · Avon Road
-
20
Enter the roundabout and take exit 2 toward Avon Road
32 m · 2 sec · Avon Road
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21
Exit the roundabout onto Avon Road
1059 ft · 21 sec · Avon Road
-
22
Enter the roundabout and take exit 4 toward Avon Road
90 m · 5 sec · Avon Road
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23
Exit the roundabout onto Avon Road
23 m · 1 sec · Avon Road
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24
Arrive at your destination
0 m · 1 sec · Avon Road
Car Route Details
A richer read on the saved driving route between Castle Rock and Avon.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 West
Merge slight left
93.8 mi · 01h 50m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Snow Showers leaving Castle Rock and Snow Showers near Avon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Rock to Avon?
The road trip is about 132.4 miles (213 km) and usually takes 02h 38m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Empire is a useful midpoint, sitting about 66.1 miles from Castle Rock and 66.2 miles from Avon.
How much longer is the road route than the straight-line distance?
The direct path is about 90.6 miles (145.8 km), while the road route adds roughly 41.8 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 1:14 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.27 one way or $34.54 round trip. Estimated CO2 is about 41.5 kg one way.
What should you check before leaving?
Before you leave, expect Snow Showers around Castle Rock and Snow Showers near Avon.
Stop Ideas Near Empire
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 Empire.
Fraser – Winter Park
Frisco, Colorado
Pine Junction, CO
Granby
Flight Path Map
This map shows the direct air route between Castle Rock and Avon. Straight-line distance: 90.61 mi (145.83 km).
#1 Castle Rock
The most populous city in Douglas County, Colorado.
| Population | 70,567 |
| Coordinates | 39.3722100, -104.8560900 |
| Altitude | 1897 |
| Country | United States |
#2 Avon
Home Rule Municipality that is a town in Eagle County, Colorado, United States
| Population | 6,952 |
| Coordinates | 39.6313700, -106.5222500 |
| Altitude | 2265 |
| Country | United States |
End: Avon (-106.52225, 39.63137)
Estimated Travel Time
Distance: 213 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 24m |
| 40 mph (64.37 km/h) | 03h 18m |
| 50 mph (80.47 km/h) | 02h 38m |
| 60 mph (96.56 km/h) | 02h 12m |
| 70 mph (112.65 km/h) | 01h 53m |
| 80 mph (129 km/h) | 01h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $17.27 | $34.54 |
| Mid-grade | $4.08 | $19.07 | $38.14 |
| Premium | $4.39 | $20.51 | $41.01 |
| Diesel | $4.74 | $22.12 | $44.24 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.