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Trip from Ranchester, WY to Green River, WY

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards

Drive Time

6h 55m

Distance

401.7 mi

647 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$64

one way

EV Charging

Sparse

1 stations

Best Time to Leave

Save up to 35 min
4 AM
6h 44m ★
6 AM
6h 56m
8 AM
7h 19m
10 AM
7h 4m
12 PM
7h 1m
3 PM
7h 5m
5 PM
7h 18m
8 PM
6h 49m

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

Best Time Drive vs Fly
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Downtown Ranchester, WY, WY

Ranchester, WY

Ciprian Andrei Pavel

city in and county seat of Sweetwater County, Wyoming, United States

Green River, WY

Wikimedia Commons

Trip Overview

This 401.7-mile journey from Ranchester, WY to Green River, WY is a solid day trip, estimated to take around 6 hours and 55 minutes. You'll be spending about 52% of your time on major highways, with a significant 119.1-mile stretch on the Dwight D. Eisenhower Highway. The estimated fuel cost for this drive is $64. Traveling within the Mountain West region for the entirety of the trip means you'll experience consistent, expansive landscapes. With only one recommended stop, this route is designed for efficient travel, making it a feasible, albeit long, single-day adventure.

Trip Pace

Same-day drive is realistic

A same-day return is possible, but it will make for a full day on the road.

Break Rhythm

1 planned break

Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Midpoint

200.9 miles from Ranchester, WY

A natural place for your longest stop of the day , about 3h 22m into the drive .

Main Roads

Road Distance Duration
Dwight D. Eisenhower Highway 119.1 mi 1h 55m
US 87 111.4 mi 1h 45m
County Road 308 63.7 mi 1h 12m
I 90 48.2 mi 48m
US 287 44.1 mi 50m
Casper West Belt 7.3 mi 8m
US 20 2.7 mi 3m
I 80 Bus 1.9 mi 4m
Longest stretch: Dwight D. Eisenhower Highway — 119.1 mi, about 1h 55m

Turn-by-Turn Driving Directions

Step-by-step road directions between Ranchester, WY and Green River, WY.

1

Start on US 14

0.8 mi · 1 min · Dayton Street
2

Take the ramp onto I 90; US 87

0.4 mi · 50 sec · I 90; US 87
3

Continue on I 90; US 14; US 87

48 mi · 47 min · I 90; US 14; US 87
4

Take the exit onto US 87

111 mi · 1 hr 45 min · US 87
Exit 56B Toward I 25 South, US 87 South: Casper
5

Take the exit

0.3 mi · 42 sec
Toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
6

Keep slight left at fork

0.1 mi · 17 sec
7

Turn right onto US 20; US 26

2.7 mi · 3 min · US 20; US 26
8

Continue on WY 257

7.3 mi · 8 min · Casper West Belt
9

Turn right onto WY 220

64 mi · 1 hr 12 min · County Road 308
10

Continue on US 287; WY 789

44 mi · 50 min · US 287; WY 789
11

Turn right onto I 80 Bus; US 30 Bus; WY 789

1.5 mi · 2 min · West Spruce Street
12

Take the ramp onto WY 789

0.6 mi · 1 min · WY 789
13

Merge onto I 80; US 30; WY 789

119 mi · 1 hr 55 min · Dwight D. Eisenhower Highway
14

Take the exit onto I 80 Bus; US 30 Bus

1.9 mi · 4 min · I 80 Bus; US 30 Bus
Toward I 80 Business West, US 30 Business West: Green River
15

Turn right onto North 1st East

35 ft · 1 sec · North 1st East
16

Arrive at destination

North 1st East

Trip Plan

For this 6-hour, 55-minute drive covering 401.7 miles, an early start from Ranchester is recommended to make the most of daylight. While it's feasible as a single day trip, be prepared for a long haul. The longest uninterrupted stretch is 119.1 miles, so plan your fuel and restroom breaks accordingly, perhaps around the single recommended stop. Keep an eye on your fuel gauge, especially when transitioning from highway to county roads, as services might be less frequent. The $64 fuel estimate should be factored into your budget for this WY to WY excursion.

Morning Departure

Start early — leave by 6-7 AM to arrive at a reasonable hour.

Evening Departure

This is a long drive — plan for a morning departure or consider splitting it into two days.

You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 200.9 miles from Ranchester, WY, or about 3h 22m into the drive.
The longest continuous stretch on this route runs about 119.1 miles.

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 88 miles or 1h 27m in

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

Halfway reset

Around 200.9 miles or 3h 22m in

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

Final approach

Final hour starts around 5h 54m

Traffic, exits, and arrival timing usually matter more near Green River, WY than in the middle of the route.

Before You Leave

+

Open the route before leaving Ranchester, WY 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 Ranchester, WY

This is one driving day of about 401.7 miles and 6h 55m.

Your first comfortable stop window is around 88 miles from Ranchester, WY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Dwight D. Eisenhower Highway for about 119.1 miles.

Where to Stop

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

Downtown Mills, WY, WY

Mid-route town

Meal stop

Mills, WY

201 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

Casper, WY

Fuel and coffee

A short stop after about 88 miles helps settle the day before fatigue starts building.

Casper, WY

Meal break

The midpoint is around 200.9 miles from Ranchester, WY, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before Dwight D. Eisenhower Highway if your tank is already low. That segment runs about 119.1 miles.

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

Nearby Places

Restaurants, cafes, gas stations and more along your route.

Top Restaurant

Innominate Coffeehouse & Bakery

4.9 ★ ★ ★ ★ ★

Ranchester, Wyoming

Near the start, right off the route

0.2 mi from route ~1 min detour $10 to $20

Hours: 7 am–2 pm

+13076834020

Visit website

Top Coffee Stop

The Dry Bean Coffee Shed

4.9 ★ ★ ★ ★ ★

Ranchester, Wyoming

Near the start, right off the route

0.1 mi from route $1 to $10

Hours: 6 am–1 pm

+13077527333

Visit website

Innominate Coffeehouse & Bakery

4.9 ★ ★ ★ ★ ★

Near the start, right off the route

0.2 mi from route ~1 min detour $10 to $20

Ranchester, Wyoming

Hours: 7 am–2 pm

+13076834020

Visit website

The Dry Bean Coffee Shed

4.9 ★ ★ ★ ★ ★

Near the start, right off the route

0.1 mi from route $1 to $10

Ranchester, Wyoming

Hours: 6 am–1 pm

+13077527333

Visit website

Pilot Flying J Charging Station

3.3 ★ ★ ★ ☆ ☆

Later in the drive, ~10 min detour

4.2 mi from route ~10 min detour mile 286.9

Rawlins, Wyoming

Hours: Open 24 hours

+13073280158

Visit website

Place data sourced from public business listings. Hours and availability may vary.

Heads-up: tricky spots

5 of 11

5 decision points cluster between mile 49 and 401.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

6
49 mi into trip | ~50m in | US 87

Take the exit onto US 87 toward I 25 South, US 87 South: Casper

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

Exit 56B Toward I 25 South, US 87 South: Casper
5
160.4 mi into trip | ~2h 35m in

Take the exit toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry

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

Toward US 20 West, US 26 West, WY 220 West: Sho...
4
160.7 mi into trip | ~2h 36m in

Keep slight left at fork

Highway fork - watch signs carefully

5
399.9 mi into trip | ~6h 51m in | I 80 Bus; US 30 Bus

Take the exit onto I 80 Bus; US 30 Bus toward I 80 Business West, US 30 Business West: Green River

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

Toward I 80 Business West, US 30 Business West:...
4
401.7 mi into trip | ~6h 55m in | North 1st East

Turn right onto North 1st East

Navigation decision point

Fuel & Cost

Regular Gas

$63.66 one way

$127.31 round trip

$4.03/gal 25.4 MPG avg 141 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.22 $66.72 $133.45
premium $4.53 $71.66 $143.32
diesel $5.61 $88.69 $177.38

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$64

Meals

$25–$50

Total

$89–$114

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

Estimated CO2 emission: 140.5 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $42 in charging · 1 stop · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 120.5 1 $42.18 $19.28
Efficient EV 100.4 1 $35.15 $16.07
EV Truck/SUV 160.7 2 $56.24 $25.71

Gas CO2

141 kg

EV CO2

47 kg (67% less)

Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.

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 15, 2026

Origin

Ranchester, WY

Evening in Ranchester on Saturday

Local time

7:10 PM

MDT

Current temp

40°F

Unavailable

Live forecast

Destination

Green River, WY

Evening in Green River on Saturday

Local time

7:10 PM

MDT

Current temp

65°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

25 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

6h 55m on the road

Start early — leave by 6-7 AM to arrive at a reasonable hour.

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

What kind of drive is this?

This route offers a mixed driving experience, balancing efficiency with the open road. You'll encounter stretches of major highway, including a substantial 119.1-mile segment on the Dwight D. Eisenhower Highway, contributing to the 52% highway share. Beyond the interstate feel, expect to navigate US 87 and County Road 308, offering a more local driving perspective. The profile suggests a drive that transitions between faster-paced travel and potentially more meandering, scenic sections, keeping you engaged behind the wheel.

52% highway, the rest on surface roads — varied driving throughout.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 119.1 mi on Dwight D. Eisenhower Highway.

How Hard Is This Drive?

4/10

This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes around 49 miles in near US 87.

Driving Effort 4/10

Easy - simple navigation with a manageable amount of wheel time

Balances navigation complexity with total wheel time.

The route itself is not hard, but at 6h 55m, endurance matters. Plan breaks every 2-3 hours. The 11 decision points are all manageable with basic attention.

Where does it get tricky?

The main spots that need attention: at 49 miles (US 87): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 160.4 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 160.7 miles: Highway fork - watch signs carefully.

Elevation Profile

High-altitude sections with notable climbs

6,876 ft 3,764 ft

Total Climb

3,725 ft

Total Descent

1,384 ft

Highest Point

6,876 ft

~286.9 mi in

Elevation Range

3,112 ft

Notable High Points

5,138 ft at ~57.4 miles +131 ft prominence
5,644 ft at ~143.5 miles +128 ft prominence
6,289 ft at ~200.9 miles +137 ft prominence
6,876 ft at ~286.9 miles +118 ft prominence
6,832 ft at ~344.3 miles +75 ft prominence

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

On the drive from Ranchester, WY to Green River, WY, road signs begin pointing toward Port Of Entry along the way.

Port Of Entry

160.4 mi in | ~2h 35m

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 6h 55m. Total distance: 401.7 miles.

Family Friendly

Moderate complexity with 1 natural rest stops along the way.

Solo Traveler

6h 55m drive, plan rest stops for pacing.

First-Time Driver

Mostly highway driving (52%). Straightforward navigation.

Frequently Asked Questions

The longest stretch is about 119.1 miles on Dwight D. Eisenhower Highway. The full list of main roads is in the Roads section above.

We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.

It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Green River, WY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.

Mostly yes along the main roads, but rural stretches through WY can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.

The main spots that need attention: at 49 miles (US 87): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 160.4 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 160.7 miles: Highway fork - watch signs carefully.

Not recommended in a single day. At 6.9 hours each way, a round trip means 13.9 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Green River, WY before the return drive.

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, EIA for fuel prices, and USGS 3DEP for elevation. See our methodology for refresh cadence and limitations.

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