How far is Fremont County, ID from Nampa, ID?

The driving distance from Fremont County, ID to Nampa, ID is about 340.3 miles (547.6 km), with a travel time of about 05h 51m by car.

  • The straight-line flight distance is about 257.4 miles (414.3 km).
  • For a round trip, plan for roughly 11h 42m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
340.25 mi
05h 51m
Flight
257.43 mi
414.29 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Fremont County.

Flight Distance

Direct air line
257.43 mi
Kilometers
414.29 km
Flight Time
00h 31m

Driving Distance

Road route
340.25 mi
Kilometers
547.58 km
Drive Time
05h 51m

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 05h 51m.

Arrival Snapshot
Arrive in Nampa
Sat, Apr 18, 8:04 AM MDT
Return by in Fremont County
Sat, Apr 18, 1:55 PM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Fremont County
2026-04-18T02:13
Arrive Nampa
Sat, Apr 18, 8:04 AM MDT
Route Timing
05h 51m
One way by road
Best Departure Window
6:00 AM to 8:00 AM MDT
Leave early for more breathing room
Arrive between
11:51 AM to 1:51 PM MDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
5:18 AM MDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Fremont County
9:00 PM MDT
Early departure recommended

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.

Mid-route stop
Rupert
ID

City in Minidoka County, Idaho, United States

From Fremont County
182.3 mi
02h 55m
To Nampa
158 mi
02h 55m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
49°F
Saturday

Sunny

Starts
Sat, Apr 18 6:00 AM MDT
Wind
3 to 10 mph S
Destination
60°F
Saturday

Mostly Sunny

Starts
Sat, Apr 18 6:00 AM MDT
Wind
7 to 15 mph SE

Driving Route Map

The map below follows the saved road route between Fremont County and Nampa.

Turn-by-Turn Driving Directions

Step-by-step road directions between Fremont County and Nampa.

  1. 1

    Start on South Antelope Flat Road

    4.3 mi · 17 min · South Antelope Flat Road

  2. 2

    At the end of the road, turn right onto Idaho Medal of Honor Highway

    25.5 mi · 29 min · Idaho Medal of Honor Highway

  3. 3

    Continue on Yellowstone Highway

    17.2 mi · 18 min · Yellowstone Highway

  4. 4

    Continue on Idaho Medal of Honor Highway

    15.4 mi · 16 min · Idaho Medal of Honor Highway

  5. 5

    Continue on Rigby Highway

    3.1 mi · 4 min · Rigby Highway

  6. 6

    Merge slight right onto Grandview Drive

    575 ft · 14 sec · Grandview Drive

  7. 7

    Take the exit slight right toward I 15 South: Arco, Pocatello

    1466 ft · 37 sec

  8. 8

    Merge slight left onto Veterans Memorial Highway

    46.5 mi · 44 min · Veterans Memorial Highway

  9. 9

    Take the exit slight right toward I 86 West: Chubbuck, Twin Falls

    1 km · 44 sec

  10. 10

    Continue straight

    62.7 mi · 59 min

  11. 11

    Continue on Vietnam Veterans Memorial Highway

    183 mi · 2 hr 55 min · Vietnam Veterans Memorial Highway

  12. 12

    Take the exit slight right toward I 84 Business: Garrity Boulevard, Idaho Center Boulevard

    1901 ft · 53 sec

  13. 13

    Turn left onto Garrity Boulevard

    1.4 mi · 3 min · Garrity Boulevard

  14. 14

    Turn left onto North Kings Road

    1.2 km · 1 min · North Kings Road

  15. 15

    Enter the roundabout and take exit 2 toward South Kings Road

    38 m · 3 sec · South Kings Road

  16. 16

    Exit the roundabout onto South Kings Road

    1 mi · 2 min · South Kings Road

  17. 17

    Turn right onto East Amity Avenue

    1.2 mi · 2 min · East Amity Avenue

  18. 18

    Continue on Diamond Street

    792 ft · 16 sec · Diamond Street

  19. 19

    Continue on East Colorado Avenue

    1143 ft · 35 sec · East Colorado Avenue

  20. 20

    Turn left onto Holly Street

    1556 ft · 45 sec · Holly Street

  21. 21

    Continue on Sunny Ridge Road

    1.6 km · 2 min · Sunny Ridge Road

  22. 22

    Turn right onto Stony Meadow Drive

    57 m · 8 sec · Stony Meadow Drive

  23. 23

    Arrive at your destination

    0 m · 1 sec · Stony Meadow Drive

Car Route Details

A richer read on the saved driving route between Fremont County and Nampa.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
23 steps
8 turns on the saved route
Ramps & Exits
7
2 merges, 5 ramps or exits
Navigation Density
6.8 / 100 mi
Decision points by distance
Main Roads
Vietnam Veterans Memorial Highway
183 mi · 54%
I 86 West
63.3 mi · 19%
Veterans Memorial Highway
46.5 mi · 14%
Idaho Medal of Honor Highway
40.8 mi · 12%
Yellowstone Highway
17.2 mi · 5%
South Antelope Flat Road
4.29 mi · 1%
Longest Stretch

Vietnam Veterans Memorial Highway

Continue on Vietnam Veterans Memorial Highway

183 mi · 02h 55m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
05h 51m
Long day trip
Same-Day Return
11h 42m
Round-trip wheel time
Road vs Air
+82.9 mi
257.4 mi direct line
Halfway Stop
Rupert
02h 55m from Fremont County
Leave By
5:18 AM MDT
Early departure recommended
Weather Watch

Sunny leaving Fremont County and Mostly Sunny near Nampa.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Fremont County to Nampa?

The road trip is about 340.3 miles (547.6 km) and usually takes 05h 51m 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?

Rupert is a useful midpoint, sitting about 182.3 miles from Fremont County and 158 miles from Nampa.

How much longer is the road route than the straight-line distance?

The direct path is about 257.4 miles (414.3 km), while the road route adds roughly 82.9 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 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 5:18 AM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $46.75 one way or $93.51 round trip. Estimated CO2 is about 106.7 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Fremont County and Mostly Sunny near Nampa.

Stop Ideas Near Rupert

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Rupert, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Rupert.

BUS

Twin Falls, Idaho

64 mi away
1135 Blue Lakes Circle

Flight Path Map

This map shows the direct air route between Fremont County and Nampa. Straight-line distance: 257.43 mi (414.29 km).

Fremont County

#1 Fremont County

County in Idaho, United States

Population13,099
Coordinates44.2287900, -111.4820200
Altitude1892
CountryUnited States
Nampa

#2 Nampa

The most populous city in Canyon County, Idaho.

Population99,277
Coordinates43.5407200, -116.5634600
Altitude767
CountryUnited States
Start: South Antelope Flat Road (-111.492462, 44.22646)
End: Stony Meadow Drive (-116.563329, 43.541003)

Estimated Travel Time

Distance: 548 km by road

SpeedTime
30 mph (48.3 km/h)11h 20m
40 mph (64.37 km/h)08h 30m
50 mph (80.47 km/h)06h 48m
60 mph (96.56 km/h)05h 40m
70 mph (112.65 km/h)04h 51m
80 mph (129 km/h)04h 14m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
12.01 gal
45.45 L · about $46.75
Round trip
$93.51
24.02 gal · 90.9 L
Estimated CO2
106.7 kg one way
Round trip: 213.5 kg / 471 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.89 $46.75 $93.51
Mid-grade $4.23 $50.81 $101.63
Premium $4.55 $54.63 $109.27
Diesel $5.41 $65.00 $130.00

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 18, 2026

There is no time difference between Fremont County and Nampa. The current time is 02:13:21.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.