How far is Caldwell, ID from Melba, ID?
The driving distance from Caldwell, ID to Melba, ID is about 26.1 miles (42 km), with a travel time of about 00h 41m by car.
- The straight-line flight distance is about 21.4 miles (34.4 km).
- For a round trip, plan for roughly 01h 23m 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 41m.
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.
The most populous city in Canyon County, Idaho.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Caldwell and Melba.
Turn-by-Turn Driving Directions
Step-by-step road directions between Caldwell and Melba.
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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
6.6 mi · 8 min · Vietnam Veterans Memorial Highway
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8
Take the exit right toward Northside
947 ft · 23 sec
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9
Keep slight right
727 ft · 18 sec
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10
Turn straight onto Northside Boulevard
1.6 km · 2 min · Northside Boulevard
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11
Continue on North Yale Street
1990 ft · 40 sec · North Yale Street
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12
Continue on 7th Street South
2895 ft · 1 min · 7th Street South
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13
Turn right onto 12th Avenue South
13.1 mi · 20 min · 12th Avenue South
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14
Turn left onto Melba Road
2 mi · 4 min · Melba Road
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15
Turn right onto Southside Boulevard
1.2 km · 2 min · Southside Boulevard
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16
Continue on 4th Street
842 ft · 33 sec · 4th Street
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17
Turn right
22 m · 5 sec
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18
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Caldwell and Melba.
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.
12th Avenue South
Turn right onto 12th Avenue South
13.1 mi · 00h 20m
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 Caldwell and Rain Showers Likely near Melba.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Caldwell to Melba?
The road trip is about 26.1 miles (42 km) and usually takes 00h 41m 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?
Nampa is a useful midpoint, sitting about 13 miles from Caldwell and 13 miles from Melba.
How much longer is the road route than the straight-line distance?
The direct path is about 21.4 miles (34.4 km), while the road route adds roughly 4.7 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 7:06 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.22 one way or $8.44 round trip. Estimated CO2 is about 8.2 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Caldwell and Rain Showers Likely near Melba.
Stop Ideas Near Nampa
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 Nampa.
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Flight Path Map
This map shows the direct air route between Caldwell and Melba. Straight-line distance: 21.39 mi (34.42 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 Melba
City in Canyon County, Idaho, United States
| Population | 558 |
| Coordinates | 43.3754400, -116.5290100 |
| Altitude | 813 |
| Country | United States |
End: Melba (-116.52901, 43.37544)
Estimated Travel Time
Distance: 42 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 52m |
| 40 mph (64.37 km/h) | 00h 39m |
| 50 mph (80.47 km/h) | 00h 31m |
| 60 mph (96.56 km/h) | 00h 26m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.59 | $4.22 | $8.44 |
| Mid-grade | $4.90 | $4.51 | $9.02 |
| Premium | $5.16 | $4.74 | $9.49 |
| Diesel | $6.57 | $6.04 | $12.08 |
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 · Oct 31, 2026