How far is Rifle, CO from Longmont, CO?
The driving distance from Rifle, CO to Longmont, CO is about 216.9 miles (349 km), with a travel time of about 03h 38m by car.
- The straight-line flight distance is about 148.8 miles (239.4 km).
- For a round trip, plan for roughly 07h 16m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 38m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 in Summit County, Colorado, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Mostly Sunny
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Rifle and Longmont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rifle and Longmont.
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1
Start on Railroad Avenue
1824 ft · 50 sec · Railroad Avenue
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2
Continue straight
3057 ft · 1 min
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3
Enter the roundabout and take exit 2 toward the route
77 m · 5 sec
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4
Exit the roundabout
1311 ft · 32 sec
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5
Merge slight left
179.1 mi · 3 hr 25 min
-
6
Keep slight left to continue on Heartland Expressway
1.3 mi · 2 min · Heartland Expressway
-
7
Take the exit slight right toward CO 95: Sheridan Boulevard
1606 ft · 40 sec
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8
Turn left onto Sheridan Boulevard
4.6 mi · 8 min · Sheridan Boulevard
-
9
Turn left onto US 36 West: Boulder
1765 ft · 37 sec
-
10
Keep slight left to continue on US 36 West
876 ft · 23 sec
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11
Merge slight left onto Denver–Boulder Turnpike
1.5 km · 1 min · Denver–Boulder Turnpike
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12
Keep slight right to continue on Denver–Boulder Turnpike
1.9 mi · 2 min · Denver–Boulder Turnpike
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13
Keep slight right to continue on Denver–Boulder Turnpike
1.2 km · 52 sec · Denver–Boulder Turnpike
-
14
Take the exit slight right toward CO 121: Wadsworth Parkway
1951 ft · 42 sec
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15
Turn right
1257 ft · 30 sec
-
16
Continue straight
5.7 mi · 8 min
-
17
Continue straight
1106 ft · 19 sec
-
18
Continue straight
11.5 mi · 16 min
-
19
Turn right onto 5th Avenue
109 m · 20 sec · 5th Avenue
-
20
Turn right onto Kimbark Street
52 m · 9 sec · Kimbark Street
-
21
Turn right
57 m · 16 sec
-
22
Turn right
33 m · 8 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Rifle and Longmont.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Railroad Avenue
Merge slight left
179 mi · 03h 25m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Rain Showers then Mostly Sunny leaving Rifle and Light Rain Likely near Longmont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rifle to Longmont?
The road trip is about 216.9 miles (349 km) and usually takes 03h 38m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Frisco is a useful midpoint, sitting about 104.2 miles from Rifle and 112.7 miles from Longmont.
How much longer is the road route than the straight-line distance?
The direct path is about 148.8 miles (239.4 km), while the road route adds roughly 68.1 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 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:44 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $33.09 one way or $66.17 round trip. Estimated CO2 is about 68 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Mostly Sunny around Rifle and Light Rain Likely near Longmont.
Stop Ideas Near Frisco
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Frisco.
Frisco, Colorado
Vail, Colorado
Fairplay, CO
Fraser – Winter Park
Flight Path Map
This map shows the direct air route between Rifle and Longmont. Straight-line distance: 148.77 mi (239.43 km).
#1 Rifle
City in Colorado
| Population | 9,775 |
| Coordinates | 39.5347000, -107.7831200 |
| Altitude | 1630 |
| Country | United States |
#2 Longmont
The most populous city in Boulder County, Colorado.
| Population | 98,445 |
| Coordinates | 40.1672100, -105.1019300 |
| Altitude | 1519 |
| Country | United States |
End: (-105.101861, 40.16721)
Estimated Travel Time
Distance: 349 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 13m |
| 40 mph (64.37 km/h) | 05h 25m |
| 50 mph (80.47 km/h) | 04h 20m |
| 60 mph (96.56 km/h) | 03h 36m |
| 70 mph (112.65 km/h) | 03h 05m |
| 80 mph (129 km/h) | 02h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.33 | $33.09 | $66.17 |
| Mid-grade | $4.72 | $36.10 | $72.20 |
| Premium | $5.06 | $38.73 | $77.46 |
| Diesel | $6.52 | $49.86 | $99.71 |
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 · Oct 15, 2026