How far is Caldwell, ID from Rupert, ID?
The driving distance from Caldwell, ID to Rupert, ID is about 189.4 miles (304.8 km), with a travel time of about 03h 09m by car.
- The straight-line flight distance is about 168 miles (270.4 km).
- For a round trip, plan for roughly 06h 19m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 09m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Rain Showers
Light Rain then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Caldwell and Rupert.
Turn-by-Turn Driving Directions
Step-by-step road directions between Caldwell and Rupert.
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1
Start on the route
28 m · 12 sec
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2
Turn left onto Cleveland Boulevard
22 m · 4 sec · Cleveland Boulevard
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3
Turn right
43 m · 13 sec
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4
Turn right
46 m · 13 sec
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5
Turn right onto South 10th Avenue
1.1 km · 2 min · South 10th Avenue
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6
Take the ramp slight right
2822 ft · 1 min
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7
Merge slight left onto Vietnam Veterans Memorial Highway
20.9 mi · 24 min · Vietnam Veterans Memorial Highway
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8
Keep slight right to continue on Vietnam Veterans Memorial Highway
161.7 mi · 2 hr 33 min · Vietnam Veterans Memorial Highway
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9
Take the exit slight right toward US 30, ID 24: Rupert, Heyburn
2320 ft · 56 sec
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10
Turn slight right
63 m · 5 sec
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11
Turn slight right
4.6 mi · 7 min
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12
Turn left onto F Street
1840 ft · 56 sec · F Street
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13
Turn left onto 7th Street
624 ft · 29 sec · 7th Street
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14
Turn right
54 m · 13 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 Caldwell and Rupert.
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
Keep slight right to continue on Vietnam Veterans Memorial Highway
162 mi · 02h 33m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Rain Showers leaving Caldwell and Light Rain then Showers And Thunderstorms near Rupert.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Caldwell to Rupert?
The road trip is about 189.4 miles (304.8 km) and usually takes 03h 09m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Glenns Ferry is a useful midpoint, sitting about 94.6 miles from Caldwell and 94.9 miles from Rupert.
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 21.4 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 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 10:40 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.01 one way or $52.01 round trip. Estimated CO2 is about 59.4 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Caldwell and Light Rain then Showers And Thunderstorms near Rupert.
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 Caldwell and Rupert. Straight-line distance: 168.01 mi (270.39 km).
#1 Caldwell
The most populous city in Canyon County, Idaho.
| Population | 58,481 |
| Coordinates | 43.6629400, -116.6873600 |
| Altitude | 724 |
| Country | United States |
#2 Rupert
City in Minidoka County, Idaho, United States
| Population | 5,893 |
| Coordinates | 42.6190800, -113.6772300 |
| Altitude | 1267 |
| Country | United States |
End: Rupert (-113.67723, 42.61908)
Estimated Travel Time
Distance: 305 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 18m |
| 40 mph (64.37 km/h) | 04h 44m |
| 50 mph (80.47 km/h) | 03h 47m |
| 60 mph (96.56 km/h) | 03h 09m |
| 70 mph (112.65 km/h) | 02h 42m |
| 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 | $26.01 | $52.01 |
| Mid-grade | $4.23 | $28.26 | $56.53 |
| Premium | $4.55 | $30.39 | $60.77 |
| Diesel | $5.41 | $36.15 | $72.30 |
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.