How far is New Plymouth, ID from Caldwell, ID?
The driving distance from New Plymouth, ID to Caldwell, ID is about 23.4 miles (37.7 km), with a travel time of about 00h 24m by car.
- The straight-line flight distance is about 22.2 miles (35.7 km).
- For a round trip, plan for roughly 00h 49m 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 24m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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 Canyon County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between New Plymouth and Caldwell.
Turn-by-Turn Driving Directions
Step-by-step road directions between New Plymouth and Caldwell.
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1
Start on South East Avenue
4.6 mi · 7 min · South East Avenue
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2
Take the ramp left
1340 ft · 21 sec
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3
Merge slight left onto Vietnam Veterans Memorial Highway
16.9 mi · 16 min · Vietnam Veterans Memorial Highway
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4
Continue on Idaho Medal of Honor Highway
1.1 km · 48 sec · Idaho Medal of Honor Highway
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5
Take the exit slight right toward City Center, 10th Avenue
1563 ft · 42 sec
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6
Turn right onto North 10th Avenue
1 km · 2 min · North 10th Avenue
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7
Turn left
21 m · 7 sec
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8
Turn right
24 m · 6 sec
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9
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between New Plymouth and Caldwell.
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.
Vietnam Veterans Memorial Highway
Merge slight left onto Vietnam Veterans Memorial Highway
16.9 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.
Partly Sunny leaving New Plymouth and Partly Sunny near Caldwell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from New Plymouth to Caldwell?
The road trip is about 23.4 miles (37.7 km) and usually takes 00h 24m 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?
Notus is a useful midpoint, sitting about 11.7 miles from New Plymouth and 11.7 miles from Caldwell.
How much longer is the road route than the straight-line distance?
The direct path is about 22.2 miles (35.7 km), while the road route adds roughly 1.2 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 7:40 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.23 one way or $6.46 round trip. Estimated CO2 is about 7.4 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around New Plymouth and Partly Sunny near Caldwell.
Stop Ideas Near Notus
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 Notus.
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Flight Path Map
This map shows the direct air route between New Plymouth and Caldwell. Straight-line distance: 22.2 mi (35.73 km).
#1 New Plymouth
City in Payette County, Idaho, United States
| Population | 1,554 |
| Coordinates | 43.9698900, -116.8190400 |
| Altitude | 689 |
| 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: 38 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 46m |
| 40 mph (64.37 km/h) | 00h 35m |
| 50 mph (80.47 km/h) | 00h 28m |
| 60 mph (96.56 km/h) | 00h 23m |
| 70 mph (112.65 km/h) | 00h 20m |
| 80 mph (129 km/h) | 00h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $3.23 | $6.46 |
| Mid-grade | $4.23 | $3.51 | $7.02 |
| Premium | $4.55 | $3.78 | $7.55 |
| Diesel | $5.41 | $4.49 | $8.98 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.