How far is Longmont, CO from Fort Carson, CO?
The driving distance from Longmont, CO to Fort Carson, CO is about 113.8 miles (183.2 km), with a travel time of about 02h 14m by car.
- The straight-line flight distance is about 100.2 miles (161.2 km).
- For a round trip, plan for roughly 04h 29m 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 14m.
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.
City in Douglas County, Colorado, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight Chance Rain Showers
Sunny
Driving Route Map
The map below follows the saved road route between Longmont and Fort Carson.
Turn-by-Turn Driving Directions
Step-by-step road directions between Longmont and Fort Carson.
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1
Start on the route
19 m · 7 sec
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2
Turn right onto 5th Avenue
1025 ft · 47 sec · 5th Avenue
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3
Turn right onto Collyer Street
1255 ft · 42 sec · Collyer Street
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4
Turn left onto 3rd Avenue
1.8 mi · 3 min · 3rd Avenue
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5
Turn left onto East Ken Pratt Boulevard
1.6 mi · 2 min · East Ken Pratt Boulevard
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6
Continue on Highway 119
3 mi · 4 min · Highway 119
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7
Take the exit right toward I 25 South
2690 ft · 1 min · West I 25 Frontage Road
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8
Merge slight left onto Dwight D. Eisenhower Highway
11.9 mi · 12 min · Dwight D. Eisenhower Highway
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9
Continue on North Valley Highway
3187 ft · 36 sec · North Valley Highway
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10
Keep slight right to continue on North Valley Highway
8.8 mi · 11 min · North Valley Highway
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11
Keep slight right to continue on North Valley Highway
70.1 mi · 1 hr 18 min · North Valley Highway
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12
Continue on Monument Valley Freeway
7.8 mi · 9 min · Monument Valley Freeway
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13
Take the exit slight right toward CO 115 South: Tejon Street, Nevada Avenue
2749 ft · 1 min
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14
Turn right onto South Nevada Avenue
5.4 mi · 8 min · South Nevada Avenue
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15
Turn left onto Nelson Boulevard
785 ft · 29 sec · Nelson Boulevard
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16
Keep slight left to continue on Nelson Boulevard
31 m · 3 sec · Nelson Boulevard
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17
Keep slight left to continue on Nelson Boulevard
648 ft · 18 sec · Nelson Boulevard
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18
Enter the roundabout and take exit 2 toward Nelson Boulevard
43 m · 4 sec · Nelson Boulevard
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19
Exit the roundabout onto Nelson Boulevard
2873 ft · 1 min · Nelson Boulevard
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20
Turn right onto Wetzel Avenue
2262 ft · 1 min · Wetzel Avenue
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21
Turn left onto Prussman Avenue
13 m · 1 sec · Prussman Avenue
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22
Arrive at your destination
0 m · 1 sec · Prussman Avenue
Car Route Details
A richer read on the saved driving route between Longmont and Fort Carson.
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
Keep slight right to continue on North Valley Highway
70.1 mi · 01h 18m
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 Slight Chance Rain Showers leaving Longmont and Sunny near Fort Carson.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Longmont to Fort Carson?
The road trip is about 113.8 miles (183.2 km) and usually takes 02h 14m 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?
Castle Pines is a useful midpoint, sitting about 57 miles from Longmont and 56.9 miles from Fort Carson.
How much longer is the road route than the straight-line distance?
The direct path is about 100.2 miles (161.2 km), while the road route adds roughly 13.6 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 2:00 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.87 one way or $29.73 round trip. Estimated CO2 is about 35.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Rain Showers around Longmont and Sunny near Fort Carson.
Stop Ideas Near Castle Pines
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Littleton
Aurora City Water Resources
Greenwood Village City Hall
Town Hall Arts Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Castle Pines.
Denver (Bus Station), Colorado
Union Station
Pine Junction, CO
Colorado Springs, Colorado
Flight Path Map
This map shows the direct air route between Longmont and Fort Carson. Straight-line distance: 100.18 mi (161.23 km).
#1 Longmont
The most populous city in Boulder County, Colorado.
| Population | 98,445 |
| Coordinates | 40.1672100, -105.1019300 |
| Altitude | 1519 |
| Country | United States |
#2 Fort Carson
United States Army installation
| Population | 13,813 |
| Coordinates | 38.7374900, -104.7888600 |
| Altitude | 1780 |
| Country | United States |
End: Fort Carson (-104.78886, 38.73749)
Estimated Travel Time
Distance: 183 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 47m |
| 40 mph (64.37 km/h) | 02h 50m |
| 50 mph (80.47 km/h) | 02h 16m |
| 60 mph (96.56 km/h) | 01h 53m |
| 70 mph (112.65 km/h) | 01h 37m |
| 80 mph (129 km/h) | 01h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $14.87 | $29.73 |
| Mid-grade | $4.08 | $16.42 | $32.84 |
| Premium | $4.39 | $17.65 | $35.30 |
| Diesel | $4.74 | $19.04 | $38.09 |
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.