Origin
Riverton, WY
Afternoon in Riverton on Sunday
Local time
4:52 PM
MDT
Current temp
35°F
Unavailable
Live forecast
Trip from Riverton, WY to Gillette, WY
Drive Time
4h 41m
Distance
247.2 mi
398 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$39
one way
EV Charging
Good
6 DC fast
Best Time to Leave
4 AM
4h 28m
★
6 AM
4h 41m
8 AM
5h 8m
10 AM
4h 51m
12 PM
4h 48m
3 PM
4h 52m
5 PM
5h 7m
8 PM
4h 33m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Riverton, WY
Tom Fisk
Gillette, WY
cottonbro studio
Trip Overview
The drive from Riverton, WY to Gillette, WY covers 247.2 miles and takes about 4h 41m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on US 20, WY 387, North Federal Boulevard for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 79.9 miles on US 20. At current regular gas prices, budget about $39.17 one way before food or hotel costs.
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
123.6 miles from Riverton, WY
A natural place for your longest stop of the day , about 2h 20m into the drive .
Drive Character
This is a 4h 41m highway drive covering 247.2 miles, with most of the trip on US 20 and WY 387. The longest continuous stretch is about 79.9 miles on US 20.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 12 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 20 is the longest continuous segment at about 79.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US 20 and WY 387. There are only a few real navigation decisions along the way. The trickiest moment comes around 118.8 miles in.
Route Complexity
3/10
Easy - simple navigation with a manageable amount of wheel time
This is a straightforward 4h 41m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 118.8 miles: Multiple destination signs - pick the right one; at 139.3 miles: Exit ramp - move to the correct lane early; at 139.7 miles (WY 259 / Horseshoe Road): Navigation decision point.
Critical Maneuvers
5 of 8 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
118.8 mi into trip
|
~2h 15m in
Turn left toward I 25 North, US 87 North: Midwest
Multiple destination signs - pick the right one
Toward I 25 North, US 87 North: Midwest
4
139.3 mi into trip
|
~2h 35m in
Take the exit toward Horse Ranch Creek Road
Exit ramp - move to the correct lane early
Toward Horse Ranch Creek Road
4
139.7 mi into trip
|
~2h 35m in
|
WY 259 / Horseshoe Road
Turn right onto WY 259 / Horseshoe Road
Navigation decision point
4
157.6 mi into trip
|
~2h 56m in
|
WY 387
Turn right onto WY 387
Navigation decision point
4
208.9 mi into trip
|
~3h 55m in
|
WY 59 / State Highway 59 South
Turn left onto WY 59 / State Highway 59 South
Navigation decision point
Main Roads
| Road | Distance | Duration |
|---|---|---|
| US 20 | 79.9 mi | 1h 30m |
| WY 387 | 51.3 mi | 58m |
| North Federal Boulevard | 39 mi | 44m |
| State Highway 59 South | 32.8 mi | 35m |
| I 25 | 20.1 mi | 18m |
| Horseshoe Road | 17.9 mi | 20m |
| South Douglas Highway | 5 mi | 9m |
| East 4th Street | 0.4 mi | 1m |
Longest stretch:
US 20
— 79.9 mi, about 1h 30m
Turn-by-Turn Driving Directions
Step-by-step road directions between Riverton, WY and Gillette, WY.
1
Start on US 26; WY 789
39 mi
·
44 min
·
North Federal Boulevard
2
Continue on US 20; US 26
77 mi
·
1 hr 27 min
·
US 20; US 26
3
Turn left onto US 20; US 26
3.0 mi
·
3 min
·
US 20; US 26
4
Turn left
0.4 mi
·
50 sec
Toward I 25 North, US 87 North: Midwest
5
Merge onto I 25; US 87
20 mi
·
18 min
·
I 25; US 87
6
Take the exit
0.4 mi
·
50 sec
Toward Horse Ranch Creek Road
7
Turn right onto WY 259
18 mi
·
20 min
·
Horseshoe Road
8
Turn right onto WY 387
51 mi
·
58 min
·
WY 387
9
Turn left onto WY 59
33 mi
·
35 min
·
State Highway 59 South
10
Continue on WY 59
5.0 mi
·
9 min
·
South Douglas Highway
11
Turn left onto East 4th Street
0.4 mi
·
1 min
·
East 4th Street
12
Arrive at destination
East 4th Street
Trip Plan
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 123.6 miles from Riverton, WY, or about 2h 20m into the drive.
The longest continuous stretch on this route runs about 79.9 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 31m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 123.6 miles or 2h 20m 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 47m
Traffic, exits, and arrival timing usually matter more near Gillette, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Riverton, 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 Riverton, WY
This is one driving day of about 247.2 miles and 4h 41m.
Your first comfortable stop window is around 80 miles from Riverton, 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 US 20 for about 79.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 123.6 mi from Riverton, WY · 2h 20m into the drive
Mid-route town
Meal stop
124 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
Fuel and coffee
A short stop after about 80 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 123.6 miles from Riverton, WY, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before US 20 if your tank is already low. That segment runs about 79.9 miles.
Arriving in Gillette, WY
The final approach into Gillette, 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 Gillette, 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
$39.17 one way
$78.34 round trip
$4.03/gal
25.4 MPG avg
87 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.23 | $41.18 | $82.35 |
| premium | $4.53 | $44.08 | $88.16 |
| diesel | $5.64 | $54.92 | $109.84 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$39
Meals
$25–$50
Total
$64–$89
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 86.5 kg one way. Prices: EIA weekly data, 2026-04-06.
EV Charging Along Route
6 DC fast chargers · Coverage: good
Armando's Taco and Pasta Shop - Tesla Supercharger
Gillette, WY
Tesla
8 DCFC
Target T0164 (Casper, WY)
Casper, WY
Electrify America
4 DCFC
Flying J 758
Casper, WY
eVgo Network
4 DCFC
Flying J 762
Gillette, WY
eVgo Network
4 DCFC
Kroger Smiths 180 (Gillette, WY)
Gillette, WY
Electrify America
4 DCFC
The Hampton Inn Gillette - Tesla Supercharger
Gillette, WY
Tesla
4 DCFC
Electrify America: 2
eVgo Network: 2
Tesla: 2
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $26 in charging · 0 stops · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 74.2 | 0 | $25.96 | $11.87 |
| Efficient EV | 61.8 | 0 | $21.63 | $9.89 |
| EV Truck/SUV | 98.9 | 1 | $34.61 | $15.82 |
Gas CO2
86 kg
EV CO2
29 kg (66% 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.
Destination
Gillette, WY
Afternoon in Gillette on Sunday
Local time
4:52 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
3 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 41m 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 Riverton, WY to Gillette, WY covers 247.2 miles and takes about 4h 41m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US 20, WY 387, North Federal Boulevard. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 123.6 miles from Riverton, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $39.17 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 41m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: at 118.8 miles: Multiple destination signs - pick the right one; at 139.3 miles: Exit ramp - move to the correct lane early; at 139.7 miles (WY 259 / Horseshoe Road): Navigation decision point.
The route from Riverton, WY to Gillette, WY does not surface many named destination signs beyond the main corridor.
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