How far is Casper, WY from Gillette, WY?
The driving distance from Casper, WY to Gillette, WY is about 133.2 miles (214.3 km), with a travel time of about 02h 27m by car.
- The straight-line flight distance is about 106.4 miles (171.3 km).
- For a round trip, plan for roughly 04h 54m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 02h 27m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Natrona County, Wyoming, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Casper and Gillette.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Gillette.
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1
Start on North Sunlight Drive
1368 ft · 1 min · North Sunlight Drive
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2
Turn right
770 ft · 34 sec
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3
Turn right onto East Sunlight Drive
2655 ft · 2 min · East Sunlight Drive
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4
At the end of the road, turn right onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
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5
Turn right onto East F Street
967 ft · 16 sec · East F Street
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6
Take the ramp straight
2.1 mi · 3 min
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7
Continue straight
21 mi · 20 min
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8
Take the exit slight right toward Horse Ranch Creek Road
1962 ft · 50 sec
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9
Turn right onto Horseshoe Road
17.9 mi · 20 min · Horseshoe Road
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10
Turn right
51.3 mi · 59 min
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11
Turn left onto State Highway 59 South
32.8 mi · 36 min · State Highway 59 South
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12
Continue on South Douglas Highway
5 mi · 10 min · South Douglas Highway
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13
Turn left onto East 4th Street
2116 ft · 1 min · East 4th Street
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14
Arrive at your destination
0 m · 1 sec · East 4th Street
Car Route Details
A richer read on the saved driving route between Casper and Gillette.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Longest stretch
Turn right
51.3 mi · 00h 59m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Casper and Mostly Sunny near Gillette.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Gillette?
The road trip is about 133.2 miles (214.3 km) and usually takes 02h 27m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Edgerton is a useful midpoint, sitting about 66.5 miles from Casper and 66.7 miles from Gillette.
How much longer is the road route than the straight-line distance?
The direct path is about 106.4 miles (171.3 km), while the road route adds roughly 26.8 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 1:36 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.30 one way or $36.59 round trip. Estimated CO2 is about 41.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Casper and Mostly Sunny near Gillette.
Stop Ideas Near Edgerton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Edgerton.
Casper, Wyoming
Douglas, Wyoming
Flight Path Map
This map shows the direct air route between Casper and Gillette. Straight-line distance: 106.46 mi (171.33 km).
#1 Casper
The most populous city in Natrona County, Wyoming.
| Population | 58,498 |
| Coordinates | 42.8666300, -106.3130800 |
| Altitude | 1560 |
| Country | United States |
#2 Gillette
City in Campbell County, Wyoming, United States
| Population | 32,220 |
| Coordinates | 44.2910900, -105.5022200 |
| Altitude | 1388 |
| Country | United States |
End: East 4th Street (-105.502224, 44.291248)
Estimated Travel Time
Distance: 214 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 26m |
| 40 mph (64.37 km/h) | 03h 19m |
| 50 mph (80.47 km/h) | 02h 39m |
| 60 mph (96.56 km/h) | 02h 13m |
| 70 mph (112.65 km/h) | 01h 54m |
| 80 mph (129 km/h) | 01h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $18.30 | $36.59 |
| Mid-grade | $4.23 | $19.89 | $39.77 |
| Premium | $4.55 | $21.38 | $42.76 |
| Diesel | $5.41 | $25.44 | $50.87 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Wyoming · Apr 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.