How far is Greeley, CO from Castlewood, CO?
The driving distance from Greeley, CO to Castlewood, CO is about 76.5 miles (123.1 km), with a travel time of about 01h 34m by car.
- The straight-line flight distance is about 58.8 miles (94.7 km).
- For a round trip, plan for roughly 03h 09m 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 34m.
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.
Town of the United States in Weld County in United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Greeley and Castlewood.
Turn-by-Turn Driving Directions
Step-by-step road directions between Greeley and Castlewood.
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1
Start on 19th Avenue
80 m · 19 sec · 19th Avenue
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2
Turn left onto 9th Street
602 ft · 17 sec · 9th Street
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3
Turn left onto 21st Avenue
151 m · 29 sec · 21st Avenue
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4
Turn left onto 10th Street
1.1 mi · 2 min · 10th Street
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5
Turn right onto 8th Avenue
1.4 km · 2 min · 8th Avenue
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6
Turn left onto 18th Street
2.7 mi · 4 min · 18th Street
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7
Keep slight left to continue on East 18th Street
825 ft · 13 sec · East 18th Street
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8
Continue on East 18th Street
1.4 km · 1 min · East 18th Street
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9
Turn right onto County Road 49
21.9 mi · 26 min · County Road 49
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10
Take the ramp right toward I 76 West
901 ft · 22 sec
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11
Merge slight left
15.8 mi · 16 min
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12
Take the exit slight right toward E470 Toll South: Limon
1.6 km · 2 min
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13
Merge slight left onto E-470
6.9 mi · 7 min · E-470
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14
Take the exit slight right toward Denver International Airport, Pena Boulevard
1099 ft · 17 sec
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15
Keep slight right to continue on Peña Boulevard West
1.2 km · 1 min
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16
Merge slight left onto Peña Boulevard
6.6 mi · 8 min · Peña Boulevard
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17
Merge slight left onto Tuskegee Airmen Memorial Highway
546 ft · 8 sec · Tuskegee Airmen Memorial Highway
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18
Take the exit slight right toward I 225 South: Aurora, Colorado Springs, Peoria Street
1915 ft · 36 sec
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19
Keep slight left to continue on I 225 South: Aurora, Colorado Springs
1.3 mi · 2 min
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20
Continue straight
11.1 mi · 13 min
-
21
Keep slight left to continue on I 25 South: Colorado Springs
2190 ft · 34 sec
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22
Keep slight left
916 ft · 12 sec
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23
Merge slight left onto South Valley Highway
2.3 mi · 3 min · South Valley Highway
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24
Take the exit slight right toward CO 88: Arapahoe Road
1289 ft · 29 sec
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25
Turn right onto East Arapahoe Road
2024 ft · 46 sec · East Arapahoe Road
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26
Turn left onto South Uinta Street
1.1 km · 2 min · South Uinta Street
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27
At the end of the road, turn right onto South Tamarac Court
593 ft · 28 sec · South Tamarac Court
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28
Turn right onto East Fremont Avenue
1294 ft · 57 sec · East Fremont Avenue
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29
Arrive at your destination
0 m · 1 sec · East Fremont Drive
Car Route Details
A richer read on the saved driving route between Greeley and Castlewood.
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.
County Road 49
Turn right onto County Road 49
21.9 mi · 00h 26m
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 Sunny then Chance Showers And Thunderstorms leaving Greeley and Sunny then Slight Chance Showers And Thunderstorms near Castlewood.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Greeley to Castlewood?
The road trip is about 76.5 miles (123.1 km) and usually takes 01h 34m 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?
Lochbuie is a useful midpoint, sitting about 38.3 miles from Greeley and 38.2 miles from Castlewood.
How much longer is the road route than the straight-line distance?
The direct path is about 58.8 miles (94.7 km), while the road route adds roughly 17.7 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 3:20 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.98 one way or $19.97 round trip. Estimated CO2 is about 24 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Greeley and Sunny then Slight Chance Showers And Thunderstorms near Castlewood.
Stop Ideas Near Lochbuie
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Historic Brighton City Hall
Town of Frederick
Town Hall
Old Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lochbuie.
Denver (Bus Station), Colorado
Union Station
Longmont, Colorado
Boulder, Colorado
Flight Path Map
This map shows the direct air route between Greeley and Castlewood. Straight-line distance: 58.83 mi (94.67 km).
#1 Greeley
The third most populous city in Weld County, Colorado.
| Population | 108,958 |
| Coordinates | 40.4233100, -104.7091300 |
| Altitude | 1425 |
| Country | United States |
#2 Castlewood
City in Hamlin County, South Dakota, United States
| Population | 25,271 |
| Coordinates | 39.5847100, -104.9010900 |
| Altitude | 1746 |
| Country | United States |
End: Castlewood (-104.90109, 39.58471)
Estimated Travel Time
Distance: 123 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 32m |
| 40 mph (64.37 km/h) | 01h 54m |
| 50 mph (80.47 km/h) | 01h 31m |
| 60 mph (96.56 km/h) | 01h 16m |
| 70 mph (112.65 km/h) | 01h 05m |
| 80 mph (129 km/h) | 00h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $9.98 | $19.97 |
| Mid-grade | $4.08 | $11.03 | $22.05 |
| Premium | $4.39 | $11.86 | $23.71 |
| Diesel | $4.74 | $12.79 | $25.58 |
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 · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.