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Trip from Thornton, CO to Greeley, CO

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards

Drive Time

1h 8m

Distance

53.8 mi

87 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$8

one way

EV Charging

Sparse

1 stations

Best Time to Leave

Save up to 17 min
4 AM
1h 3m ★
6 AM
1h 9m
8 AM
1h 20m
10 AM
1h 13m
12 PM
1h 11m
3 PM
1h 13m
5 PM
1h 19m
8 PM
1h 5m

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

city in Adams and Weld counties in Colorado, United States

Thornton, CO

Wikimedia Commons

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

Greeley, CO

Wikimedia Commons

Trip Overview

Thornton to Greeley is 53.8 miles and takes about 1 hour 8 minutes via Dwight D. Eisenhower Highway, with a fuel budget near $8 and enough daylight to finish in a day. This drive stays within the Mountain West region, specifically within Colorado. Expect a local feel with plenty of turns, making it less of a highway cruise and more of an engaged drive. If you're looking for a straightforward, short trip between these two Colorado locations, this route gets you there efficiently, especially if you're starting your journey from Thornton.

Main Roads

Road Distance Duration
Dwight D. Eisenhower Highway 29.2 mi 29m
10th Street 9.8 mi 16m
North Valley Highway 6.4 mi 7m
East Highway 34 4.6 mi 7m
Washington Street 1 mi 2m
East Eisenhower Boulevard 0.8 mi 1m
East 104th Avenue 0.5 mi <1m
Thornton Parkway 0.3 mi <1m
Longest stretch: Dwight D. Eisenhower Highway — 29.2 mi, about 29m

Turn-by-Turn Driving Directions

Step-by-step road directions between Thornton, CO and Greeley, CO.

1

Start on this road

76 ft · 12 sec · this road
2

Turn left onto Dorothy Boulevard

0.2 mi · 58 sec · Dorothy Boulevard
3

At end of road, turn left onto Thornton Parkway

0.3 mi · 43 sec · Thornton Parkway
4

Turn right onto Washington Street

1.0 mi · 2 min · Washington Street
Use the right lane.
5

Turn left onto East 104th Avenue

0.5 mi · 57 sec · East 104th Avenue
Use the left / straight lanes.
6

Take the ramp

0.3 mi · 25 sec
Toward I 25 North Use the right lane.
7

Merge onto I 25

1.1 mi · 1 min · North Valley Highway
8

Keep slight right at fork onto I 25

5.3 mi · 5 min · North Valley Highway
Use the straight / right lanes.
9

Continue on I 25

29 mi · 29 min · Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
10

Take the exit

0.3 mi · 41 sec
Exit 257 Toward US 34: Loveland, Greeley
11

Keep slight right at fork

487 ft · 11 sec
Toward US 34 East: Greeley Use the right lane.
12

Merge onto US 34

0.8 mi · 1 min · East Eisenhower Boulevard
Use the right lane.
13

Continue on US 34

4.6 mi · 7 min · East Highway 34
Use the straight lane.
14

Turn slight right onto US 34 Business

9.8 mi · 16 min · 10th Street
Use the slight right lane.
15

Turn left onto 18th Avenue

501 ft · 29 sec · 18th Avenue
16

Turn left onto US 34 Business

379 ft · 12 sec · 9th Street
17

Turn left onto 19th Avenue

262 ft · 11 sec · 19th Avenue
18

Arrive at destination

19th Avenue

Where to Stop

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

Downtown Johnstown, CO, CO

Mid-route town

Meal stop

Johnstown, CO

27 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

Frederick, CO

Fuel and coffee

A short stop after about 12 miles helps settle the day before fatigue starts building.

Johnstown, CO

Meal break

The midpoint is around 26.9 miles from Thornton, CO, which is a good place for a longer meal and fuel stop.

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

Heads-up: tricky spots

5 of 14

5 decision points cluster between mile 0 and 38.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

5
0 mi into trip | ~0m in | Dorothy Boulevard

Turn left onto Dorothy Boulevard

Navigation decision point

6
0.6 mi into trip | ~1m in | Washington Street

Turn right onto Washington Street

Lane positioning matters here

Use the right lane.
6
3.4 mi into trip | ~6m in | I 25 / North Valley Highway

Keep slight right at fork onto I 25 / North Valley Highway

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / right lanes.
6
37.9 mi into trip | ~41m in

Take the exit toward US 34: Loveland, Greeley

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Exit 257 Toward US 34: Loveland, Greeley
7
38.3 mi into trip | ~42m in

Keep slight right at fork toward US 34 East: Greeley

Highway fork - watch signs carefully. Lane positioning matters here

Use the right lane. Toward US 34 East: Greeley

Fuel & Cost

Regular Gas

$8.11 one way

$16.21 round trip

$3.83/gal 25.4 MPG avg 19 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.05 $8.58 $17.17
premium $4.39 $9.31 $18.61
diesel $5.61 $11.88 $23.76

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$8

Estimated CO2 emission: 18.8 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $6 in charging · 0 stops · 68% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 16.1 0 $5.65 $2.58
Efficient EV 13.5 0 $4.71 $2.15
EV Truck/SUV 21.5 0 $7.53 $3.44

Gas CO2

19 kg

EV CO2

6 kg (68% 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 as of Apr 19, 2026

Origin

Thornton, CO

Morning in Thornton on Tuesday

Local time

6:09 AM

MDT

Current temp

36°F

Unavailable

Live forecast

Destination

Greeley, CO

Morning in Greeley on Tuesday

Local time

6:09 AM

MDT

Current temp

58°F

Unavailable

Live forecast

58°F

Johnstown, CO

27 mi in

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

22 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

1h 8m 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.

What kind of drive is this?

This route is characterized as a 'turn-heavy local drive,' meaning you'll be navigating more frequently than on a simple interstate. While 9% of the drive utilizes highways, the majority involves local roads. The longest uninterrupted stretch you'll encounter is 29.2 miles on the Dwight D. Eisenhower Highway. Be prepared for a dynamic driving experience that requires your attention as you transition between different road types and navigate turns, rather than a sustained period of highway cruising.

Only 9% highway — the rest is turn-by-turn surface driving.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 29.2 mi on Dwight D. Eisenhower Highway.

How Hard Is This Drive?

9/10

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Dorothy Boulevard.

Driving Effort 9/10

Demanding - stay alert through the decision-heavy sections

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 53.8 miles you will encounter 14 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: near the start (Dorothy Boulevard): Navigation decision point; at 0.6 miles (Washington Street): Lane positioning matters here; at 3.4 miles (I 25 / North Valley Highway): Highway fork - watch signs carefully. Lane positioning matters here.

About the Cities

Arriving in Greeley, CO

Full guide →

Greeley is a city of about 110,000 in the north central region of the western U.S. state of Colorado. The seat of Weld County, the city lies 49 miles (79 km) north-northeast of Denver on the South Platte River, the historic route of the Pikes Peak Gold Rush of 1858-1861. The city was founded in 1870 by Nathan Meeker, who named it for Horace Greeley, editor of the New York Tribune and promoter of the Union Colony of Colorado. Greeley is the home of the University of Northern Colorado. The most well-known event in the town is the annual Greeley Independence Stampede, which attracts an estimated 400,000 attendees every summer.

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 8m. Total distance: 53.8 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 8m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

Scenic Drive

Mostly surface roads route profile.

Frequently Asked Questions

The longest stretch is about 29.2 miles on Dwight D. Eisenhower Highway. The full list of main roads is in the Roads section above.

It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Greeley, CO before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: near the start (Dorothy Boulevard): Navigation decision point; at 0.6 miles (Washington Street): Lane positioning matters here; at 3.4 miles (I 25 / North Valley Highway): Highway fork - watch signs carefully. Lane positioning matters here.

Yes. A round trip is manageable in a single day if you plan a break at Greeley, CO before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.

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