Distance between cities › USA › Idaho › Downey, ID › Distance from Downey to Post Book Hotels

Distance from Downey, ID to Post, OR

Distance

570 mi

Time

11 hours 41 mins

Gas Cost

$53 - $103

There are 437.21 miles from Downey to Post in northwest direction and 570 miles (917.33 kilometers) by car, following the I-84 and US-30 route.

Downey and Post are 11 hours 41 mins far apart, if you drive non-stop .

This is the fastest route from Downey, ID to Post, OR. The halfway point is Caldwell, ID.

Please note the time difference between Downey, ID and Post, OR is 1 hour. The current time in Downey is 1:21 pm and the current time in Post is 12:21 pm.

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Lowest Price Rental Cars in Downey, ID

Planning on renting a car to go from Downey, ID to Post, OR? Here there are some offers to rent a car in Downey, ID

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Downey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 22.91 gallons of gas to cover the route between Downey, ID and Post, OR.

The estimated cost of gas to go from Downey to Post is $74.72.

During the route, an average car will release 448.81 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Downey, ID and Post, OR

If you want to meet halfway between Downey, ID and Post, OR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.628296 and -116.623024, or 43º 37' 41.8656" N, 116º 37' 22.8864" W. This location is 285.20 miles away from Downey, ID and Post, OR and it would take approximately 5 hours 50 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Caldwell, ID, situated 299 miles from Downey, ID and 301 miles from Post, OR. It would take 4 hours 11 mins to go from Downey to Caldwell and 6 hours 53 mins to go from Post to Caldwell.

Major City Closest to Halfway Point

The major city closest to the halfway point between Downey, ID and Post, OR is Boise, ID, situated 281 miles from Downey, ID and 327 miles from Post, OR. It would take 3 hours 53 mins to go from Downey to and 7 hours 17 mins to go from Post to Boise.