Distance between cities › USA › Illinois › Gridley, IL › Distance from Gridley to Post Falls Book Hotels

Distance from Gridley, IL to Post Falls, ID

Distance

1,757 mi

Time

1 day 6 hours

Gas Cost

$165 - $321

There are 1,461.31 miles from Gridley to Post Falls in northwest direction and 1,757 miles (2,827.62 kilometers) by car, following the I-90 route.

Gridley and Post Falls are 1 day 6 hours far apart, if you drive non-stop .

This is the fastest route from Gridley, IL to Post Falls, ID.

Please note the time difference between Gridley, IL and Post Falls, ID is 2 hours. The current time in Gridley is 2:44 am and the current time in Post Falls is 12:44 am.

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Lowest Price Rental Cars in Gridley, IL

Planning on renting a car to go from Gridley, IL to Post Falls, ID? Here there are some offers to rent a car in Gridley, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Gridley »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 70.58 gallons of gas to cover the route between Gridley, IL and Post Falls, ID.

The estimated cost of gas to go from Gridley to Post Falls is $232.27.

During the route, an average car will release 1,382.78 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 $3.29 per gallon of regular gas. Price last updated on March 13, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Gridley, IL and Post Falls, ID

If you want to meet halfway between Gridley, IL and Post Falls, ID or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.103648 and -102.65096, or 44º 6' 13.1328" N, 102º 39' 3.456" W. This location is 878.70 miles away from Gridley, IL and Post Falls, ID and it would take approximately 15 hours 11 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Owanka, SD, situated 899 miles from Gridley, IL and 870 miles from Post Falls, ID. It would take 15 hours 37 mins to go from Gridley to Owanka and 15 hours 13 mins to go from Post Falls to Owanka.