The drive from Gillette, WY to Kemmerer, WY covers 440 miles and takes about 8h behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on Dwight D. Eisenhower Highway, County Road 308, WY 387 for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 144.5 miles on Dwight D. Eisenhower Highway.
At current regular gas prices, budget about $69.72 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
220 miles from Gillette, WY
A natural place for your longest stop of the day
, about 4h 11m into the drive
.
Who Is This Route For?
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
8h drive, plan rest stops for pacing.
Scenic Drive
Mixed drive route profile with national parks nearby.
Drive Character
The drive from Gillette, WY to Kemmerer, WY covers 440 miles and takes about 8h, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 26 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Dwight D. Eisenhower Highway is the longest continuous segment at about 144.5 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 17 points where you need to pay attention to lane position or signs. The trickiest moment comes around 107.6 miles in.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 440 miles you will encounter 17 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: at 107.6 miles: Exit ramp - move to the correct lane early; at 128.2 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 393.1 miles (US 30): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 17 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
107.6 mi into trip|~2h 5m in
Take the exit toward I 25 South: Casper
Exit ramp - move to the correct lane early
Toward I 25 South: Casper
5
128.2 mi into trip|~2h 25m 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...
5
393.1 mi into trip|~7h 6m in|US 30
Take the exit onto US 30 toward US 30 West: Kemmerer, Pocatello
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 30 West: Kemmerer, Pocatello
6
437.3 mi into trip|~7h 54m in|US 30
Take the exit onto US 30 toward US 30, US 189: Kemmerer, Diamondville
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 57
Toward US 30, US 189: Kemmerer, Diamondville
7
437.6 mi into trip|~7h 55m in|US 30
Keep slight right at fork onto US 30 toward US 30, US 189: Kemmerer, Diamondville
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Exit 57
Toward US 30, US 189: Kemmerer, Diamondville
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Gillette, WY and Kemmerer, WY, road signs point toward Port Of Entry and Pocatello.
Port Of Entry
128.2 mi in|~2h 25m
Pocatello
393.1 mi in|~7h 6m|via US 30
Main Roads
Road
Distance
Duration
Dwight D. Eisenhower Highway
144.5 mi
2h 20m
County Road 308
63.7 mi
1h 12m
WY 387
51.3 mi
58m
US 30
45.3 mi
50m
US 287
44.1 mi
50m
State Highway 59 South
32.8 mi
35m
I 25
20.1 mi
18m
WY 259
18.1 mi
20m
Longest stretch:
Dwight D. Eisenhower Highway
— 144.5 mi, about 2h 20m
Turn-by-Turn Driving Directions
Step-by-step road directions between Gillette, WY and Kemmerer, WY.
1
Start on East 4th Street
0.4 mi·1 min·East 4th Street
2
Turn right onto WY 59
5.0 mi·9 min·South Douglas Highway
3
Continue on WY 59
33 mi·35 min·State Highway 59 South
4
Turn right onto WY 387
51 mi·58 min·WY 387
5
Turn left onto WY 259
18 mi·20 min·WY 259
6
Take the exit
0.4 mi·52 sec
Toward I 25 South: Casper
7
Merge onto I 25; US 87
20 mi·18 min·I 25; US 87
8
Take the exit
0.3 mi·42 sec
Toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
9
Keep slight left at fork
0.1 mi·17 sec
10
Turn right onto US 20; US 26
2.7 mi·3 min·US 20; US 26
11
Continue on WY 257
7.3 mi·8 min·Casper West Belt
12
Turn right onto WY 220
64 mi·1 hr 12 min·County Road 308
13
Continue on US 287; WY 789
44 mi·50 min·US 287; WY 789
14
Turn right onto I 80 Bus; US 30 Bus; WY 789
1.5 mi·2 min·West Spruce Street
15
Take the ramp onto WY 789
0.6 mi·1 min·WY 789
16
Merge onto I 80; US 30; WY 789
145 mi·2 hr 20 min·Dwight D. Eisenhower Highway
17
Take the exit onto US 30
44 mi·48 min·US 30
Toward US 30 West: Kemmerer, Pocatello
18
Take the exit onto US 30
0.3 mi·35 sec·US 30
Exit 57Toward US 30, US 189: Kemmerer, Diamondville
19
Keep slight right at fork onto US 30
0.8 mi·1 min·US 30
Exit 57Toward US 30, US 189: Kemmerer, Diamondville
20
Continue on US 30; US 189
1.0 mi·2 min·Highway 30/189
21
Continue on US 30; US 189
0.2 mi·15 sec·Central Avenue
22
Continue on US 30; US 189
0.2 mi·34 sec·Coral Street
23
Continue on US 30; US 189
368 ft·15 sec·Pine Street
24
Turn left onto Opal Street
178 ft·9 sec·Opal Street
25
Turn right
205 ft·14 sec
26
Arrive at destination
Trip Plan
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.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 220 miles from Gillette, WY, or about 4h 11m into the drive.
The longest continuous stretch on this route runs about 144.5 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 97 miles or 1h 53m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 220 miles or 4h 11m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 220 miles or 4h 11m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 6h 53m
Traffic, exits, and arrival timing usually matter more near Kemmerer, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Gillette, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Gillette, WY
Aim for roughly 220 miles and 4 hours of wheel time on this day.
Day 2
Finish the approach into Kemmerer, WY
Aim for roughly 220 miles and 4 hours of wheel time on this day.
Your first comfortable stop window is around 97 miles from Gillette, WY.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Dwight D. Eisenhower Highway for about 144.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 220 mi from Gillette, WY
· 4h 11m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Fossil Butte National Monument
National Monument
In the ridges of southwest Wyoming are some of the best-preserved fossils in the world. They tell the story of ancient life in a warm, wet environment in and around a freshwater lake. Stingrays swam i...
12 mi from route
~31 min detour
Free
near mile 440
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$69.72 one way
$139.45 round trip
$4.03/gal25.4 MPG avg154 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$73.09
$146.17
premium
$4.53
$78.49
$156.98
diesel
$5.61
$97.15
$194.29
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$70
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$200–$310
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 153.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $46 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
132
1
$46.20
$21.12
Efficient EV
110
1
$38.50
$17.60
EV Truck/SUV
176
2
$61.60
$28.16
Gas CO2
154 kg
EV CO2
51 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
Gillette, WY
Morning
in Gillette on Friday
Local time
6:32 AM
MDT
Current temp
73°F
Unavailable
Live forecast
Destination
Kemmerer, WY
Morning
in Kemmerer on Friday
Local time
6:32 AM
MDT
Current temp
60°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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
13 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
8h on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Gillette, WY to Kemmerer, WY covers 440 miles and takes about 8h without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Dwight D. Eisenhower Highway, County Road 308, WY 387. Expect a mix of highway and local road driving.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 220 miles on day one.
The midpoint is about 220 miles from Gillette, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $69.72 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This drive requires moderate attention. Across 440 miles you will encounter 17 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 107.6 miles: Exit ramp - move to the correct lane early; at 128.2 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 393.1 miles (US 30): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Between Gillette, WY and Kemmerer, WY, road signs point toward Port Of Entry and Pocatello.
Yes. Nearby national parks include Fossil Butte National Monument.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from
OSRM
over
OpenStreetMap.
Fuel cost uses
EIA
weekly regional averages.
National park proximity is from the
NPS API.
Pages are published only after passing our data-quality checks; our
methodology page
documents refresh cadence, editorial standards, and known limitations.
