How far is Castle Rock, CO from Estes Park, CO?
The driving distance from Castle Rock, CO to Estes Park, CO is about 93.5 miles (150.4 km), with a travel time of about 02h 09m by car.
- The straight-line flight distance is about 77.9 miles (125.4 km).
- For a round trip, plan for roughly 04h 19m 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 09m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
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
Driving Route Map
The map below follows the saved road route between Castle Rock and Estes Park.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Rock and Estes Park.
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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
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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
34.4 mi · 41 min
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7
Take the exit slight left toward US 36 West: Westminster, Boulder
2930 ft · 52 sec
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8
Merge slight right onto Denver–Boulder Turnpike
2.1 mi · 2 min · Denver–Boulder Turnpike
-
9
Keep slight right to continue on Denver–Boulder Turnpike
1.7 mi · 2 min · Denver–Boulder Turnpike
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10
Keep slight right to continue on Denver–Boulder Turnpike
2.3 mi · 3 min · Denver–Boulder Turnpike
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11
Keep slight right to continue on Denver–Boulder Turnpike
1.9 mi · 2 min · Denver–Boulder Turnpike
-
12
Keep slight right to continue on Denver–Boulder Turnpike
2.1 mi · 2 min · Denver–Boulder Turnpike
-
13
Keep slight right to continue on Denver–Boulder Turnpike
2.9 mi · 3 min · Denver–Boulder Turnpike
-
14
Keep slight right to continue on Denver–Boulder Turnpike
2.4 mi · 3 min · Denver–Boulder Turnpike
-
15
Keep slight right to continue on Denver–Boulder Turnpike
2.2 mi · 3 min · Denver–Boulder Turnpike
-
16
Keep slight left to continue on Denver–Boulder Turnpike
2.3 mi · 3 min · Denver–Boulder Turnpike
-
17
Continue on 28th Street
15.5 mi · 23 min · 28th Street
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18
Turn left onto Ute Highway
1 mi · 2 min · Ute Highway
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19
Continue on Main Street
2514 ft · 1 min · Main Street
-
20
Continue on West Main Street
1.1 km · 1 min · West Main Street
-
21
Continue on North Saint Vrain Avenue
6.1 mi · 10 min · North Saint Vrain Avenue
-
22
Continue on East Highway 36
12 mi · 20 min · East Highway 36
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23
Continue on North Saint Vrain Avenue
2754 ft · 51 sec · North Saint Vrain Avenue
-
24
Enter the roundabout and take exit 1 toward North Saint Vrain Avenue
17 m · 1 sec · North Saint Vrain Avenue
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25
Exit the roundabout onto North Saint Vrain Avenue
1.5 km · 2 min · North Saint Vrain Avenue
-
26
Turn left onto East Elkhorn Avenue
1385 ft · 54 sec · East Elkhorn Avenue
-
27
Turn right onto Virginia Drive
67 m · 7 sec · Virginia Drive
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28
Arrive at your destination
0 m · 1 sec · Park Lane
Car Route Details
A richer read on the saved driving route between Castle Rock and Estes Park.
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 25 North
Merge slight left
34.4 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.
Sunny leaving Castle Rock and Mostly Cloudy near Estes Park.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Rock to Estes Park?
The road trip is about 93.5 miles (150.4 km) and usually takes 02h 09m 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 Castle Rock and 46.7 miles from Estes Park.
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 15.6 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 2:10 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.20 one way or $24.41 round trip. Estimated CO2 is about 29.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Castle Rock and Mostly Cloudy near Estes Park.
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 Castle Rock and Estes Park. Straight-line distance: 77.9 mi (125.36 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 Estes Park
Town in Larimer County, Colorado, United States
| Population | 6,553 |
| Coordinates | 40.3772100, -105.5216700 |
| Altitude | 2300 |
| Country | United States |
End: Estes Park (-105.52167, 40.37721)
Estimated Travel Time
Distance: 150 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 06m |
| 40 mph (64.37 km/h) | 02h 20m |
| 50 mph (80.47 km/h) | 01h 52m |
| 60 mph (96.56 km/h) | 01h 33m |
| 70 mph (112.65 km/h) | 01h 20m |
| 80 mph (129 km/h) | 01h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $12.20 | $24.41 |
| Mid-grade | $4.08 | $13.48 | $26.95 |
| Premium | $4.39 | $14.49 | $28.98 |
| Diesel | $4.74 | $15.63 | $31.26 |
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.