Distance between cities › USA › Washington › Carson, WA › Distance from Carson to Augusta Book Hotels

Distance from Carson, WA to Augusta, MT

Distance

624 mi

Time

11 hours 51 mins

Gas Cost

$58 - $113

There are 463.48 miles from Carson to Augusta in northeast direction and 624 miles (1,004.23 kilometers) by car, following the I-90 and US-2 and US-395 route.

Carson and Augusta are 11 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Carson, WA to Augusta, MT.

Please note the time difference between Carson, WA and Augusta, MT is 1 hour. The current time in Carson is 5:01 am and the current time in Augusta is 6:01 am.

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Lowest Price Rental Cars in Carson, WA

Planning on renting a car to go from Carson, WA to Augusta, MT? Here there are some offers to rent a car in Carson, WA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Carson »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 25.07 gallons of gas to cover the route between Carson, WA and Augusta, MT.

The estimated cost of gas to go from Carson to Augusta is $81.77.

During the route, an average car will release 491.13 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 Carson, WA and Augusta, MT

If you want to meet halfway between Carson, WA and Augusta, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.709823 and -116.995052, or 47º 42' 35.3628" N, 116º 59' 42.1872" W. This location is 312.09 miles away from Carson, WA and Augusta, MT and it would take approximately 5 hours 55 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Post Falls, ID, situated 319 miles from Carson, WA and 306 miles from Augusta, MT. It would take 6 hours 16 mins to go from Carson to Post Falls and 5 hours 40 mins to go from Augusta to Post Falls.

Major City Closest to Halfway Point

The major city closest to the halfway point between Carson, WA and Augusta, MT is Spokane, WA, situated 295 miles from Carson, WA and 330 miles from Augusta, MT. It would take 5 hours 48 mins to go from Carson to Spokane and 6 hours 8 mins to go from Augusta to Spokane.