How far is Platteville, CO from Longmont, CO?
The driving distance from Platteville, CO to Longmont, CO is about 19 miles (30.5 km), with a travel time of about 00h 27m by car.
- The straight-line flight distance is about 15.1 miles (24.3 km).
- For a round trip, plan for roughly 00h 54m 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 27m.
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.
Town in Weld County, Colorado, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Snow Showers then Mostly Sunny
Slight Chance Snow Showers
Driving Route Map
The map below follows the saved road route between Platteville and Longmont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Platteville and Longmont.
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1
Start on Marion Avenue
41 m · 11 sec · Marion Avenue
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2
Turn left onto Main Street
3058 ft · 1 min · Main Street
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3
Turn right onto Justin Avenue
7.9 mi · 13 min · Justin Avenue
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4
Continue straight
2594 ft · 57 sec
-
5
Take the ramp left toward I 25 South
1963 ft · 48 sec
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6
Merge slight left onto Dwight D. Eisenhower Highway
2.3 mi · 2 min · Dwight D. Eisenhower Highway
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7
Take the exit slight right toward CO 119 West
1528 ft · 29 sec
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8
Turn right onto Highway 119
3 mi · 4 min · Highway 119
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9
Continue on East Ken Pratt Boulevard
1.6 mi · 2 min · East Ken Pratt Boulevard
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10
Take the exit slight right
69 m · 7 sec
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11
Turn right onto East 3rd Avenue
1.9 mi · 4 min · East 3rd Avenue
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12
Turn right onto Kimbark Street
1084 ft · 55 sec · Kimbark Street
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13
Turn left
57 m · 16 sec
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14
Turn right
33 m · 8 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Platteville 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.
Justin Avenue
Turn right onto Justin Avenue
7.89 mi · 00h 13m
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.
Slight Chance Snow Showers then Mostly Sunny leaving Platteville and Slight Chance Snow Showers near Longmont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Platteville to Longmont?
The road trip is about 19 miles (30.5 km) and usually takes 00h 27m 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?
Mead is a useful midpoint, sitting about 9.4 miles from Platteville and 9.6 miles from Longmont.
How much longer is the road route than the straight-line distance?
The direct path is about 15.1 miles (24.3 km), while the road route adds roughly 3.9 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 7:36 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.48 one way or $4.96 round trip. Estimated CO2 is about 6 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Snow Showers then Mostly Sunny around Platteville and Slight Chance Snow Showers near Longmont.
Stop Ideas Near Mead
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old Town Hall
Town of Frederick
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Mead.
Longmont, Colorado
Boulder, Colorado
Fort Collins, Colorado
Union Station
Flight Path Map
This map shows the direct air route between Platteville and Longmont. Straight-line distance: 15.1 mi (24.3 km).
#1 Platteville
Human settlement in Weld County, Colorado, United States of America
| Population | 3,000 |
| Coordinates | 40.2149800, -104.8227500 |
| Altitude | 1467 |
| 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: 31 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 37m |
| 40 mph (64.37 km/h) | 00h 28m |
| 50 mph (80.47 km/h) | 00h 22m |
| 60 mph (96.56 km/h) | 00h 18m |
| 70 mph (112.65 km/h) | 00h 16m |
| 80 mph (129 km/h) | 00h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $2.48 | $4.96 |
| Mid-grade | $4.08 | $2.74 | $5.47 |
| Premium | $4.39 | $2.94 | $5.88 |
| Diesel | $4.74 | $3.17 | $6.35 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.