Trip from Casper, WY to Powell, WY

Drive Time

4h 39m

Distance

239 mi

385 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$38

one way

EV Charging

station data

Best Time to Leave

Save up to 40 min

4 AM

4h 26m ★

6 AM

4h 39m

8 AM

5h 6m

10 AM

4h 48m

12 PM

4h 46m

3 PM

4h 50m

5 PM

5h 5m

8 PM

4h 31m

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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Casper, WY

Beyzaa Yurtkuran

Powell, WY

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Trip Overview

Spanning 239 miles through the Mountain West, this trip from Casper to Powell typically takes about 4 hours and 39 minutes of driving time. Because the route is categorized as a turn-heavy local drive, it is best suited for a single, focused day of travel rather than an overnight split. You should budget approximately $37 for fuel to complete the journey. Navigating this route involves transitioning through West Yellowstone Highway, Broadway Street, and Idaho Street. While it is manageable in one go, the winding nature of the roads means you should plan for a steady pace rather than rushing. This drive provides a direct connection between two Wyoming hubs, offering a practical way to traverse the region.

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

119.5 miles from Casper, WY

A natural place for your longest stop of the day , about 2h 21m into the drive .

Drive Character

Expect a hands-on experience behind the wheel, as this route is defined by its turn-heavy local profile rather than high-speed interstate cruising. Only 2% of the journey consists of highway travel, so you will spend the vast majority of your time on local roads. The longest uninterrupted segment occurs on the West Yellowstone Highway, stretching for 93.8 miles. As you move away from the initial departure point, the road demands your full attention due to its technical nature. The transition between different road types creates a shifting rhythm that keeps the drive engaging for those who prefer navigating local routes over monotonous highway stretches.

This route has more turning and local-road decision points than a simple highway run.

There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.

West Yellowstone Highway is the longest continuous segment at about 93.8 miles.

How Hard Is This Drive?

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.3 miles in.

Route Complexity 3/10

Easy - simple navigation with a manageable amount of wheel time

This is a straightforward 4h 39m drive. You will face about 13 decision points, but nothing that requires special attention if you follow navigation.

Where does it get tricky?

The main spots that need attention: at 0.3 miles: Navigation decision point; at 0.9 miles (Bryan Stock Trail): Navigation decision point; at 4.3 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.

Critical Maneuvers

5 of 13 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

0.3 mi into trip | ~1m in

Turn right

Navigation decision point

0.9 mi into trip | ~3m in | Bryan Stock Trail

At end of road, turn right onto Bryan Stock Trail

Navigation decision point

4.3 mi into trip | ~8m 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...

133.2 mi into trip | ~2h 37m in | South 8th Street

Turn left onto South 8th Street

Lane positioning matters here

Use the straight / left lanes.

133.7 mi into trip | ~2h 40m in | WY 120 / Broadway Street

Turn left onto WY 120 / Broadway Street

Lane positioning matters here

Use the straight / right lanes.

Main Roads

Road	Distance	Duration
West Yellowstone Highway	93.8 mi	1h 46m
Broadway Street	81.5 mi	1h 29m
Idaho Street	31.7 mi	38m
Powell Highway	14.7 mi	15m
US 20	5.1 mi	6m
Medicine Wheel Passage	4.2 mi	4m
Beacon Hill Road	1.8 mi	3m
Main Street	1.2 mi	2m

Longest stretch: West Yellowstone Highway — 93.8 mi, about 1h 46m

Turn-by-Turn Driving Directions

Step-by-step road directions between Casper, WY and Powell, WY.

Start on North Sunlight Drive

0.3 mi · 1 min · North Sunlight Drive

Turn right

0.1 mi · 33 sec

Turn right onto East Sunlight Drive

0.5 mi · 1 min · East Sunlight Drive

At end of road, turn right onto Bryan Stock Trail

1.1 mi · 1 min · Bryan Stock Trail

Turn right onto US 20; US 26; US 87

0.2 mi · 16 sec · East F Street

Take the ramp onto US 20; US 26; US 87

2.1 mi · 2 min · US 20; US 26; US 87

Take the exit

0.3 mi · 45 sec

Toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry

Keep slight left at fork

350 ft · 10 sec

Turn left onto US 20; US 26

3.0 mi · 3 min · US 20; US 26

Turn right onto US 20; US 26

94 mi · 1 hr 46 min · West Yellowstone Highway

Turn right onto US 20; WY 789

32 mi · 38 min · Idaho Street

Turn left onto South 8th Street

0.5 mi · 2 min · South 8th Street

Use the straight / left lanes.

Turn left onto WY 120

82 mi · 1 hr 29 min · Broadway Street

Use the straight / right lanes.

At end of road, turn right onto US 14; US 16; US 20

0.5 mi · 53 sec · Greybull Highway

Turn left onto CR 3CX

1.8 mi · 3 min · Beacon Hill Road

Turn right onto US 14A

15 mi · 15 min · Powell Highway

Continue on US 14A

1.2 mi · 2 min · Main Street

Continue on US 14A

4.2 mi · 4 min · Medicine Wheel Passage

Continue on US 14A

1.2 mi · 2 min · West Coulter Avenue

Turn left onto South Bent Street

0.2 mi · 26 sec · South Bent Street

Arrive at destination

North Bent Street

Trip Plan

Since this is a turn-heavy route, planning for at least one dedicated stop is essential to stay refreshed throughout the 4 hour and 39 minute duration. Aim to depart early in the day to take full advantage of the daylight hours, as the local roads can be more challenging to navigate after dark. Because the drive relies heavily on local streets like Broadway and Idaho, keep a close watch on your fuel gauge and consider topping off before heading into the more remote stretches. Use the 93.8-mile segment on the West Yellowstone Highway as your primary marker for pacing your breaks. Staying flexible with your timing is a major advantage on this route, allowing you to manage the technical turns at a speed that feels comfortable for your vehicle.

Morning Departure

An early start around 7-8 AM gets you there with plenty of daylight left.

Evening Departure

A late afternoon start means arriving after dark. Morning is better.

You can normally do this drive in one day.

Plan roughly 1 meaningful break for fuel, food, and rest.

The halfway point lands around 119.5 miles from Casper, WY, or about 2h 21m into the drive.

The longest continuous stretch on this route runs about 93.8 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 80 miles or 1h 35m in

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

Halfway reset

Around 119.5 miles or 2h 21m in

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

Final approach

Final hour starts around 3h 48m

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

Before You Leave

Open the route before leaving Casper, 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 Casper, WY

This is one driving day of about 239 miles and 4h 39m.

Your first comfortable stop window is around 80 miles from Casper, 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 West Yellowstone Highway for about 93.8 miles.

Where to Stop

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

Halfway Point

Midpoint

About 119.5 mi from Casper, WY · 2h 21m into the drive

Mid-route town

Meal stop

Thermopolis, WY

120 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

Riverton, WY

Fuel and coffee

A short stop after about 80 miles helps settle the day before fatigue starts building.

Thermopolis, WY

Meal break

The midpoint is around 119.5 miles from Casper, WY, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before West Yellowstone Highway if your tank is already low. That segment runs about 93.8 miles.

Arriving in Powell, WY

The final approach into Powell, WY 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 Powell, WY.

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

Fuel & Cost

Regular Gas

$37.87 one way

$75.75 round trip

$4.03/gal 25.4 MPG avg 84 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$4.23	$39.81	$79.62
premium	$4.53	$42.62	$85.23
diesel	$5.64	$53.10	$106.20

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$38

Meals

$25–$50

Total

$63–$88

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

Estimated CO2 emission: 83.6 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $25 in charging · 0 stops · 67% less CO₂

Vehicle Type	kWh	Stops	DC Fast	Home Charge
Average EV	71.7	0	$25.10	$11.47
Efficient EV	59.8	0	$20.91	$9.56
EV Truck/SUV	95.6	1	$33.46	$15.30

Gas CO2

84 kg

EV CO2

28 kg (67% less)

Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.

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 3 days ago

Origin

Casper, WY

Afternoon in Casper on Sunday

Local time

4:48 PM

MDT

Current temp

39°F

Unavailable

Live forecast

Destination

Powell, WY

Afternoon in Powell on Sunday

Local time

4:48 PM

MDT

Current temp

32°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

7 degrees cooler at arrival

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

Road read

4h 39m on the road

An early start around 7-8 AM gets you there with plenty of daylight left.

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

Frequently Asked Questions

The drive from Casper, WY to Powell, WY covers 239 miles and takes about 4h 39m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are West Yellowstone Highway, Broadway Street, Idaho Street. Expect a mix of highway and local road driving.

This is a comfortable same-day trip.

The midpoint is about 119.5 miles from Casper, WY. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $37.87 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.

Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

This is a straightforward 4h 39m drive. You will face about 13 decision points, but nothing that requires special attention if you follow navigation.

The route from Casper, WY to Powell, WY does not surface many named destination signs beyond the main corridor.

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Trip from Casper, WY to Powell, WY

Best Time to Leave

Trip Overview

Drive Character

How Hard Is This Drive?

Critical Maneuvers

Main Roads

Turn-by-Turn Driving Directions

Trip Plan

Before You Leave

Where to Stop

Pacing Suggestions

Arriving in Powell, WY

Fuel & Cost

Travel Intel

Casper, WY

Powell, WY

Same local time

7 degrees cooler at arrival

4h 39m on the road

Frequently Asked Questions

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