How far is Estes Park, CO from Castle Rock, CO?
The driving distance from Estes Park, CO to Castle Rock, CO is about 94.6 miles (152.2 km), with a travel time of about 01h 51m by car.
- The straight-line flight distance is about 77.9 miles (125.4 km).
- For a round trip, plan for roughly 03h 43m 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 01h 51m.
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.
A city in Broomfield County, Colorado.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Sunny
Driving Route Map
The map below follows the saved road route between Estes Park and Castle Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Estes Park and Castle Rock.
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1
Start on Park Lane
67 m · 15 sec · Park Lane
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2
Turn left onto East Elkhorn Avenue
1052 ft · 38 sec · East Elkhorn Avenue
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3
Take the ramp straight toward US 36, CO 7
43 m · 4 sec
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4
Continue on US 36, CO 7
119 m · 11 sec
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5
Merge slight left onto North Saint Vrain Avenue
1.4 km · 2 min · North Saint Vrain Avenue
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6
Enter the roundabout and take exit 2 toward North Saint Vrain Avenue
43 m · 2 sec · North Saint Vrain Avenue
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7
Exit the roundabout onto North Saint Vrain Avenue
2737 ft · 50 sec · North Saint Vrain Avenue
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8
Continue on East Highway 36
12 mi · 20 min · East Highway 36
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9
Continue on North Saint Vrain Avenue
6.1 mi · 10 min · North Saint Vrain Avenue
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10
Continue on West Main Street
1.2 km · 2 min · West Main Street
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11
Turn left onto Broadway
1418 ft · 51 sec · Broadway
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12
Merge slight left onto Main Street
1090 ft · 34 sec · Main Street
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13
Continue on Ute Highway
1 mi · 2 min · Ute Highway
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14
Take the exit slight right
61 m · 6 sec
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15
Merge slight left onto North Foothills Highway
12.2 mi · 16 min · North Foothills Highway
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16
Turn sharp right onto Jay Road
26 m · 10 sec · Jay Road
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17
Take the ramp sharp left
39 m · 4 sec
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18
Merge slight left onto 28th Street
3.3 mi · 7 min · 28th Street
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19
Turn straight onto Denver–Boulder Turnpike
3.4 mi · 4 min · Denver–Boulder Turnpike
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20
Keep slight right to continue on Denver–Boulder Turnpike
1.7 mi · 2 min · Denver–Boulder Turnpike
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21
Keep slight right to continue on Denver–Boulder Turnpike
2.6 mi · 3 min · Denver–Boulder Turnpike
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22
Keep slight right to continue on Denver–Boulder Turnpike
2.4 mi · 3 min · Denver–Boulder Turnpike
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23
Keep slight right to continue on Denver–Boulder Turnpike
2.2 mi · 3 min · Denver–Boulder Turnpike
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24
Keep slight right to continue on Denver–Boulder Turnpike
1.9 mi · 2 min · Denver–Boulder Turnpike
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25
Keep slight right to continue on Denver–Boulder Turnpike
2.5 mi · 3 min · Denver–Boulder Turnpike
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26
Keep slight right to continue on Denver–Boulder Turnpike
2 mi · 2 min · Denver–Boulder Turnpike
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27
Keep slight right to continue on Denver–Boulder Turnpike
1.1 mi · 1 min · Denver–Boulder Turnpike
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28
Take the exit slight right toward I 25 south: Denver
2497 ft · 47 sec
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29
Continue on I 25 south: Denver
2037 ft · 34 sec
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30
Merge slight left onto North Valley Highway
34.2 mi · 41 min · North Valley Highway
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31
Take the exit slight right toward Wilcox Street, Wolfensberger Road
1213 ft · 32 sec
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32
Turn left onto East Wolfensberger Road
132 m · 21 sec · East Wolfensberger Road
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33
Continue on North Wilcox Street
2093 ft · 1 min · North Wilcox Street
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34
Turn left onto 5th Street
979 ft · 37 sec · 5th Street
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35
Turn right onto North Cantril Street
837 ft · 29 sec · North Cantril Street
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36
Arrive at your destination
0 m · 1 sec · North Cantril Street
Car Route Details
A richer read on the saved driving route between Estes Park and Castle Rock.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
North Valley Highway
Merge slight left onto North Valley Highway
34.2 mi · 00h 41m
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.
Mostly Cloudy leaving Estes Park 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 Estes Park to Castle Rock?
The road trip is about 94.6 miles (152.2 km) and usually takes 01h 51m 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?
Broomfield is a useful midpoint, sitting about 46.7 miles from Estes Park and 47.8 miles from Castle Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 77.9 miles (125.4 km), while the road route adds roughly 16.7 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 2:46 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.35 one way or $24.70 round trip. Estimated CO2 is about 29.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Estes Park and Sunny near Castle Rock.
Stop Ideas Near Broomfield
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Municipal Court Park
Denver City Council
Lafayette City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Broomfield.
Union Station
Denver (Bus Station), Colorado
Boulder, Colorado
Longmont, Colorado
Flight Path Map
This map shows the direct air route between Estes Park and Castle Rock. Straight-line distance: 77.9 mi (125.36 km).
#1 Estes Park
Town in Larimer County, Colorado, United States
| Population | 6,553 |
| Coordinates | 40.3772100, -105.5216700 |
| Altitude | 2300 |
| 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: 152 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 09m |
| 40 mph (64.37 km/h) | 02h 21m |
| 50 mph (80.47 km/h) | 01h 53m |
| 60 mph (96.56 km/h) | 01h 34m |
| 70 mph (112.65 km/h) | 01h 21m |
| 80 mph (129 km/h) | 01h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $12.35 | $24.70 |
| Mid-grade | $4.08 | $13.64 | $27.28 |
| Premium | $4.39 | $14.67 | $29.33 |
| Diesel | $4.74 | $15.82 | $31.64 |
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.