How far is Denver, CO from Castle Rock, CO?
The driving distance from Denver, CO to Castle Rock, CO is about 28.8 miles (46.4 km), with a travel time of about 00h 37m by car.
- The straight-line flight distance is about 26.3 miles (42.3 km).
- For a round trip, plan for roughly 01h 14m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 37m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
The second most populous city in Arapahoe County, Colorado.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight Chance Rain Showers
Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Denver and Castle Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Denver and Castle Rock.
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1
Start on the route
115 m · 29 sec
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2
Turn right
19 m · 9 sec
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3
Turn right onto East Colfax Avenue
109 m · 14 sec · East Colfax Avenue
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4
Turn right onto Grant Street
1.1 mi · 3 min · Grant Street
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5
Turn left onto East Speer Boulevard
138 m · 13 sec · East Speer Boulevard
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6
Turn right onto Logan Street
1.8 mi · 3 min · Logan Street
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7
Turn left onto East Buchtel South Boulevard
1774 ft · 39 sec · East Buchtel South Boulevard
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8
Continue on East Buchtel South Boulevard
861 ft · 17 sec · East Buchtel South Boulevard
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9
Take the ramp slight left toward I 25 South
1.3 km · 2 min
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10
Keep slight left to continue on I 25 South
1016 ft · 25 sec
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11
Merge slight left onto South Valley Highway
23 mi · 25 min · South 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 Denver and Castle Rock.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
South Valley Highway
Merge slight left onto South Valley Highway
23 mi · 00h 25m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny then Slight Chance Rain Showers leaving Denver and Sunny then Slight Chance Rain Showers near Castle Rock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Denver to Castle Rock?
The road trip is about 28.8 miles (46.4 km) and usually takes 00h 37m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Centennial is a useful midpoint, sitting about 14.4 miles from Denver and 14.5 miles from Castle Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 26.3 miles (42.3 km), while the road route adds roughly 2.5 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:16 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.77 one way or $7.54 round trip. Estimated CO2 is about 9.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Rain Showers around Denver and Sunny then Slight Chance Rain Showers near Castle Rock.
Stop Ideas Near Centennial
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Fairplay Park
Denver City Council
Town Hall Arts Center
City of Littleton
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Centennial.
Denver (Bus Station), Colorado
Union Station
Pine Junction, CO
Boulder, Colorado
Flight Path Map
This map shows the direct air route between Denver and Castle Rock. Straight-line distance: 26.27 mi (42.27 km).
#1 Denver
The twentieth most populous city in the United States and the center of the Denver metropolitan area.
| Population | 735,538 |
| Coordinates | 39.7391500, -104.9847000 |
| Altitude | 1609 |
| 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: 46 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 57m |
| 40 mph (64.37 km/h) | 00h 43m |
| 50 mph (80.47 km/h) | 00h 34m |
| 60 mph (96.56 km/h) | 00h 28m |
| 70 mph (112.65 km/h) | 00h 24m |
| 80 mph (129 km/h) | 00h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $3.77 | $7.54 |
| Mid-grade | $4.08 | $4.17 | $8.33 |
| Premium | $4.39 | $4.48 | $8.96 |
| Diesel | $4.74 | $4.83 | $9.66 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.