How far is Arvada, CO from Longmont, CO?
The driving distance from Arvada, CO to Longmont, CO is about 37.2 miles (59.9 km), with a travel time of about 00h 44m by car.
- The straight-line flight distance is about 25.2 miles (40.5 km).
- For a round trip, plan for roughly 01h 28m 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 44m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Colorado
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Arvada and Longmont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Arvada and Longmont.
-
1
Start on the route
13 m · 5 sec
-
2
Turn right onto Ammons Street
18 m · 7 sec · Ammons Street
-
3
Turn left
96 m · 25 sec
-
4
At the end of the road, turn right onto Allison Street
53 m · 14 sec · Allison Street
-
5
Turn left onto Ralston Road
2679 ft · 1 min · Ralston Road
-
6
Turn left onto Wadsworth Bypass
1.5 km · 2 min · Wadsworth Bypass
-
7
Continue on Wadsworth Boulevard
3.1 mi · 5 min · Wadsworth Boulevard
-
8
Continue on Wadsworth Parkway
3.9 mi · 7 min · Wadsworth Parkway
-
9
Continue on Interlocken Loop
1.1 km · 1 min · Interlocken Loop
-
10
Continue straight
5.7 mi · 8 min
-
11
Continue straight
1106 ft · 19 sec
-
12
Continue straight
11.5 mi · 16 min
-
13
Turn right onto 5th Avenue
109 m · 20 sec · 5th Avenue
-
14
Turn right onto Kimbark Street
52 m · 9 sec · Kimbark Street
-
15
Turn right
57 m · 16 sec
-
16
Turn right
33 m · 8 sec
-
17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Arvada and Longmont.
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.
Interlocken Loop
Continue straight
11.5 mi · 00h 16m
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 leaving Arvada and Sunny near Longmont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Arvada to Longmont?
The road trip is about 37.2 miles (59.9 km) and usually takes 00h 44m 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?
Lafayette is a useful midpoint, sitting about 13.4 miles from Arvada and 23.8 miles from Longmont.
How much longer is the road route than the straight-line distance?
The direct path is about 25.2 miles (40.5 km), while the road route adds roughly 12 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 7:02 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.84 one way or $9.69 round trip. Estimated CO2 is about 11.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Arvada and Sunny near Longmont.
Stop Ideas Near Lafayette
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Municipal Court Park
Broomfield City Council
Lafayette City Hall
Historic Brighton City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lafayette.
Boulder, Colorado
Longmont, Colorado
Denver (Bus Station), Colorado
Union Station
Flight Path Map
This map shows the direct air route between Arvada and Longmont. Straight-line distance: 25.19 mi (40.54 km).
#1 Arvada
The second most populous city in Jefferson County, Colorado.
| Population | 121,936 |
| Coordinates | 39.8027600, -105.0874800 |
| Altitude | 1629 |
| 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: 60 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 14m |
| 40 mph (64.37 km/h) | 00h 55m |
| 50 mph (80.47 km/h) | 00h 44m |
| 60 mph (96.56 km/h) | 00h 37m |
| 70 mph (112.65 km/h) | 00h 31m |
| 80 mph (129 km/h) | 00h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $4.84 | $9.69 |
| Mid-grade | $4.08 | $5.35 | $10.70 |
| Premium | $4.39 | $5.75 | $11.50 |
| Diesel | $4.74 | $6.21 | $12.41 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.