Distance between cities › USA › Montana › Grass Range, MT › Distance from Grass Range to Knowles Book Hotels

Distance from Grass Range, MT to Knowles, OK

Distance

1,084 mi

Time

19 hours

Gas Cost

$101 - $196

There are 828.25 miles from Grass Range to Knowles in southeast direction and 1,084 miles (1,744.53 kilometers) by car, following the US-87 route.

Grass Range and Knowles are 19 hours far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Knowles, OK.

Please note the time difference between Grass Range, MT and Knowles, OK is 1 hour. The current time in Grass Range is 1:54 am and the current time in Knowles is 2:54 am.

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Lowest Price Rental Cars in Grass Range, MT

Planning on renting a car to go from Grass Range, MT to Knowles, OK? Here there are some offers to rent a car in Grass Range, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Grass Range »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 43.55 gallons of gas to cover the route between Grass Range, MT and Knowles, OK.

The estimated cost of gas to go from Grass Range to Knowles is $142.05.

During the route, an average car will release 853.16 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 Grass Range, MT and Knowles, OK

If you want to meet halfway between Grass Range, MT and Knowles, OK or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.131003 and -104.842446, or 41º 7' 51.6108" N, 104º 50' 32.8056" W. This location is 542.15 miles away from Grass Range, MT and Knowles, OK and it would take approximately 9 hours 30 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Cheyenne, WY, situated 544 miles from Grass Range, MT and 543 miles from Knowles, OK. It would take 9 hours 17 mins to go from Grass Range to Cheyenne and 9 hours 47 mins to go from Knowles to Cheyenne.