How far is Longmont, CO from Frederick, CO?
The driving distance from Longmont, CO to Frederick, CO is about 13.7 miles (22.1 km), with a travel time of about 00h 22m by car.
- The straight-line flight distance is about 9.9 miles (15.9 km).
- For a round trip, plan for roughly 00h 45m 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 22m.
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.
Human settlement in Weld 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
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Longmont and Frederick.
Turn-by-Turn Driving Directions
Step-by-step road directions between Longmont and Frederick.
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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
3.1 mi · 4 min · Highway 119
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7
Continue on Firestone Boulevard
605 ft · 15 sec · Firestone Boulevard
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8
Turn right onto East I-25 Frontage Road
4.1 mi · 7 min · East I-25 Frontage Road
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9
Turn left onto Tipple Parkway
2 mi · 3 min · Tipple Parkway
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10
Turn right onto Colorado Boulevard
1257 ft · 25 sec · Colorado Boulevard
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11
Enter the roundabout and take exit 2 toward 5th Street
75 m · 11 sec · 5th Street
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12
Exit the roundabout onto 5th Street
1310 ft · 1 min · 5th Street
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13
Turn left
27 m · 8 sec
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14
Turn right
33 m · 10 sec
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15
At the end of the road, turn right
14 m · 3 sec
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16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Longmont and Frederick.
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.
East I-25 Frontage Road
Turn right onto East I-25 Frontage Road
4.07 mi · 00h 07m
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 Longmont and Mostly Sunny near Frederick.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Longmont to Frederick?
The road trip is about 13.7 miles (22.1 km) and usually takes 00h 22m 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?
Firestone is a useful midpoint, sitting about 6.8 miles from Longmont and 6.8 miles from Frederick.
How much longer is the road route than the straight-line distance?
The direct path is about 9.9 miles (15.9 km), while the road route adds roughly 3.8 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 7:44 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.78 one way or $3.55 round trip. Estimated CO2 is about 4.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Rain Showers around Longmont and Mostly Sunny near Frederick.
Stop Ideas Near Firestone
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Historic Brighton City Hall
Town of Frederick
Lafayette City Hall
Old Town Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Firestone.
Longmont, Colorado
Boulder, Colorado
Union Station
Denver (Bus Station), Colorado
Flight Path Map
This map shows the direct air route between Longmont and Frederick. Straight-line distance: 9.89 mi (15.92 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 Frederick
Settlement in Weld County, Colorado, United States
| Population | 11,515 |
| Coordinates | 40.0991500, -104.9372000 |
| Altitude | 1519 |
| Country | United States |
End: Frederick (-104.9372, 40.09915)
Estimated Travel Time
Distance: 22 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 27m |
| 40 mph (64.37 km/h) | 00h 20m |
| 50 mph (80.47 km/h) | 00h 16m |
| 60 mph (96.56 km/h) | 00h 13m |
| 70 mph (112.65 km/h) | 00h 11m |
| 80 mph (129 km/h) | 00h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $1.78 | $3.55 |
| Mid-grade | $4.08 | $1.96 | $3.92 |
| Premium | $4.39 | $2.11 | $4.22 |
| Diesel | $4.74 | $2.27 | $4.55 |
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.