How far is Rupert, ID from Caldwell, ID?
The driving distance from Rupert, ID to Caldwell, ID is about 188.9 miles (304 km), with a travel time of about 02h 49m by car.
- The straight-line flight distance is about 168 miles (270.4 km).
- For a round trip, plan for roughly 05h 39m 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 49m.
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.
City in Elmore County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain then Showers And Thunderstorms
Rain Showers
Driving Route Map
The map below follows the saved road route between Rupert and Caldwell.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rupert and Caldwell.
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1
Start on the route
54 m · 18 sec
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2
Turn left onto 7th Street
624 ft · 29 sec · 7th Street
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3
Turn right onto F Street
1840 ft · 53 sec · F Street
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4
Turn right onto Oneida Street
1.1 km · 1 min · Oneida Street
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5
Continue on State Highway 24
3.5 mi · 5 min · State Highway 24
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6
Turn left
1277 ft · 31 sec
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7
Merge slight left onto Vietnam Veterans Memorial Highway
181.8 mi · 2 hr 56 min · Vietnam Veterans Memorial Highway
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8
Take the exit slight right toward US 20, US 26 East
1207 ft · 36 sec
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9
Turn left onto Franklin Road
2268 ft · 53 sec · Franklin Road
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10
Continue on North 21st Avenue
3239 ft · 1 min · North 21st Avenue
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11
Turn right onto Blaine Street
1.3 km · 2 min · Blaine Street
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12
Turn left onto South 10th Avenue
51 m · 10 sec · South 10th Avenue
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13
Turn left
21 m · 7 sec
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14
Turn right
24 m · 6 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Rupert and Caldwell.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Vietnam Veterans Memorial Highway
Merge slight left onto Vietnam Veterans Memorial Highway
182 mi · 02h 56m
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.
Light Rain then Showers And Thunderstorms leaving Rupert and Rain Showers near Caldwell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rupert to Caldwell?
The road trip is about 188.9 miles (304 km) and usually takes 02h 49m 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?
Glenns Ferry is a useful midpoint, sitting about 94.3 miles from Rupert and 94.6 miles from Caldwell.
How much longer is the road route than the straight-line distance?
The direct path is about 168 miles (270.4 km), while the road route adds roughly 20.9 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 12:50 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.97 one way or $51.93 round trip. Estimated CO2 is about 59.3 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain then Showers And Thunderstorms around Rupert and Rain Showers near Caldwell.
Stop Ideas Near Glenns Ferry
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 Glenns Ferry.
Twin Falls, Idaho
Boise, Idaho
Flight Path Map
This map shows the direct air route between Rupert and Caldwell. Straight-line distance: 168.01 mi (270.39 km).
#1 Rupert
City in Minidoka County, Idaho, United States
| Population | 5,893 |
| Coordinates | 42.6190800, -113.6772300 |
| Altitude | 1267 |
| Country | United States |
#2 Caldwell
The most populous city in Canyon County, Idaho.
| Population | 58,481 |
| Coordinates | 43.6629400, -116.6873600 |
| Altitude | 724 |
| Country | United States |
End: (-116.687278, 43.66289)
Estimated Travel Time
Distance: 304 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 17m |
| 40 mph (64.37 km/h) | 04h 43m |
| 50 mph (80.47 km/h) | 03h 46m |
| 60 mph (96.56 km/h) | 03h 08m |
| 70 mph (112.65 km/h) | 02h 41m |
| 80 mph (129 km/h) | 02h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $25.97 | $51.93 |
| Mid-grade | $4.23 | $28.22 | $56.44 |
| Premium | $4.55 | $30.34 | $60.68 |
| Diesel | $5.41 | $36.10 | $72.20 |
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 Idaho · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.