How far is Thermopolis, WY from Kirby, WY?
The driving distance from Thermopolis, WY to Kirby, WY is about 12.6 miles (20.2 km), with a travel time of about 00h 15m by car.
- The straight-line flight distance is about 11.1 miles (17.8 km).
- For a round trip, plan for roughly 00h 30m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 15m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Scattered Rain Showers
Scattered Rain Showers
Driving Route Map
The map below follows the saved road route between Thermopolis and Kirby.
Turn-by-Turn Driving Directions
Step-by-step road directions between Thermopolis and Kirby.
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1
Start on South 6th Street
1608 ft · 53 sec · South 6th Street
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2
Continue on Park Street
11.8 mi · 16 min · Park Street
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3
Turn right
1713 ft · 47 sec
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4
Continue on West Main Street
740 ft · 38 sec · West Main Street
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5
Turn left onto Northwest Railroad Avenue
51 m · 7 sec · Northwest Railroad Avenue
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6
Arrive at your destination
0 m · 1 sec · Northwest Railroad Avenue
Car Route Details
A richer read on the saved driving route between Thermopolis and Kirby.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Park Street
Continue on Park Street
11.8 mi · 00h 16m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Scattered Rain Showers leaving Thermopolis and Scattered Rain Showers near Kirby.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Thermopolis to Kirby?
The road trip is about 12.6 miles (20.2 km) and usually takes 00h 15m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
East Thermopolis is a useful midpoint, sitting about 6.3 miles from Thermopolis and 6.3 miles from Kirby.
How much longer is the road route than the straight-line distance?
The direct path is about 11.1 miles (17.8 km), while the road route adds roughly 1.5 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 8:00 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.71 one way or $3.43 round trip. Estimated CO2 is about 3.9 kg one way.
What should you check before leaving?
Before you leave, expect Scattered Rain Showers around Thermopolis and Scattered Rain Showers near Kirby.
Flight Path Map
This map shows the direct air route between Thermopolis and Kirby. Straight-line distance: 11.05 mi (17.78 km).
#1 Thermopolis
Town of the United States
| Population | 2,770 |
| Coordinates | 43.6460700, -108.2120400 |
| Altitude | 1320 |
| Country | United States |
#2 Kirby
Town in Wyoming
| Population | 84 |
| Coordinates | 43.8044000, -108.1814900 |
| Altitude | 1301 |
| Country | United States |
End: Northwest Railroad Avenue (-108.181724, 43.804311)
Estimated Travel Time
Distance: 20 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 25m |
| 40 mph (64.37 km/h) | 00h 18m |
| 50 mph (80.47 km/h) | 00h 15m |
| 60 mph (96.56 km/h) | 00h 12m |
| 70 mph (112.65 km/h) | 00h 10m |
| 80 mph (129 km/h) | 00h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $1.71 | $3.43 |
| Mid-grade | $4.23 | $1.86 | $3.72 |
| Premium | $4.55 | $2.00 | $4.00 |
| Diesel | $5.41 | $2.38 | $4.76 |
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 · May 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.