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Trip from Boulder, CO to Lafayette, CO

Data updated 0 seconds ago

Drive Time

21m

Distance

11.1 mi

18 km

Drive Score

6/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$2

one way

EV Charging

Loading...

station data

Best Time to Leave

4 AM
0h 20m ★
6 AM
0h 21m
8 AM
0h 25m
10 AM
0h 23m
12 PM
0h 22m
3 PM
0h 23m
5 PM
0h 25m
8 PM
0h 20m ★

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

city in and county seat of Boulder County, Colorado, United States

Boulder, CO

Wikimedia Commons

city in Boulder County, Colorado, United States

Lafayette, CO

Wikimedia Commons

Trip Overview

The drive from Boulder, CO to Lafayette, CO covers 11.1 miles and takes about 21m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on 19th Street, Arapahoe Avenue, Arapahoe Road for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $1.67 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

0 planned breaks

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

5.6 miles from Boulder, CO

A natural place for your longest stop of the day , about 10m into the drive .

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Drive Character

Expect a 21m drive with frequent turns across 11.1 miles of local and secondary roads.

This route has more turning and local-road decision points than a simple highway run.
There are about 12 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
19th Street is one of the defining roads on this drive.

How Hard Is This Drive?

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple — set it and forget it for most of the drive.

Route Complexity 1/10

Very easy - short and simple to drive

The drive from Boulder, CO to Lafayette, CO is easy. At 21m with 0% highway, most drivers will find it relaxed and low-stress.

Where does it get tricky?

This route does not have any notably tricky sections. Most of the drive from Boulder, CO to Lafayette, CO is straightforward, with well-signed roads and simple exits.

Main Roads

Road Distance Duration
19th Street Unavailable Refreshing
Arapahoe Avenue Unavailable Refreshing
Arapahoe Road Unavailable Refreshing
US 285 Unavailable Refreshing
West Baseline Road Unavailable Refreshing
North Public Road Unavailable Refreshing
East Emma Street Unavailable Refreshing
South Harrison Avenue Unavailable Refreshing

Per-road distance and duration are being refreshed from OSRM for this route.

Longest stretch: 19th Street — detailed segment metrics are refreshing.

Turn-by-Turn Driving Directions

Step-by-step road directions between Boulder, CO and Lafayette, CO.

1

Start on the route

89 ft · 7 sec · the route
2

Turn right onto 19th Street

144 ft · 14 sec · 19th Street
3

Turn left onto Arapahoe Avenue

3.4 mi · 6 min · Arapahoe Avenue
4

Continue on Arapahoe Road

5.3 mi · 8 min · Arapahoe Road
5

Turn slight right onto CO 7, US 285

1.1 mi · 1 min · CO 7, US 285
6

Turn left onto West Baseline Road

0.7 mi · 1 min · West Baseline Road
7

Turn right onto North Public Road

0.4 mi · 1 min · North Public Road
8

Turn left onto East Emma Street

318 ft · 13 sec · East Emma Street
9

Turn right onto South Harrison Avenue

200 ft · 9 sec · South Harrison Avenue
10

Turn right

79 ft · 13 sec
11

Turn sharp right

92 ft · 7 sec
12

Arrive at your destination

Trip Plan

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 5.6 miles from Boulder, CO, or about 10m into the drive.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 11.1 miles or 21m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 5.6 miles or 10m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 18m

Traffic, exits, and arrival timing usually matter more near Lafayette, CO than in the middle of the route.

Before You Leave

+

Open the route before leaving Boulder, CO so your first major turns are already loaded.

+

Leave with enough water and a charging cable within reach, not packed away.

+

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Boulder, CO

This is one driving day of about 11.1 miles and 21m.

Your first comfortable stop window is around 80 miles from Boulder, CO.
This route can stay practical as a one-day drive if traffic stays reasonable.
You may only need one short stretch stop if conditions stay smooth.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 5.6 mi from Boulder, CO · 10m into the drive

Downtown Broomfield, CO, CO

Mid-route town

Meal stop

Broomfield, CO

6 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Broomfield, CO

Fuel and coffee

A short stop after about 11.1 miles helps settle the day before fatigue starts building.

Broomfield, CO

Meal break

The midpoint is around 5.6 miles from Boulder, CO, which is a good place for a longer meal and fuel stop.

Arriving in Lafayette, CO

The final approach into Lafayette, CO usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Lafayette, CO.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$1.67 one way

$3.34 round trip

$3.83/gal 25.4 MPG avg 4 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.05 $1.77 $3.54
premium $4.39 $1.92 $3.84
diesel $5.61 $2.45 $4.90

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$2

Meals

$25–$50

Total

$27–$52

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 3.9 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $1 in charging · 0 stops · 75% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 3.3 0 $1.17 $0.53
Efficient EV 2.8 0 $0.97 $0.44
EV Truck/SUV 4.4 0 $1.55 $0.71

Gas CO2

4 kg

EV CO2

1 kg (75% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast data refreshed 8 hours ago

Origin

Boulder, CO

Morning in Boulder on Wednesday

Local time

9:28 AM

MDT

Current temp

72°F

Unavailable

Live forecast

Destination

Lafayette, CO

Morning in Lafayette on Wednesday

Local time

9:28 AM

MDT

Current temp

77°F

Unavailable

Live forecast

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

5 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

21m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Boulder, CO to Lafayette, CO covers 11.1 miles and takes about 21m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are 19th Street, Arapahoe Avenue, Arapahoe Road. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 5.6 miles from Boulder, CO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $1.67 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
The drive from Boulder, CO to Lafayette, CO is easy. At 21m with 0% highway, most drivers will find it relaxed and low-stress.
This route does not have any notably tricky sections. Most of the drive from Boulder, CO to Lafayette, CO is straightforward, with well-signed roads and simple exits.
The route from Boulder, CO to Lafayette, CO does not surface many named destination signs beyond the main corridor.

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