Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Boyds Book Hotels

Distance from Dewey, SD to Boyds, WA

Distance

963 mi

Time

17 hours 24 mins

Gas Cost

$90 - $175

There are 762.35 miles from Dewey to Boyds in northwest direction and 963 miles (1,549.80 kilometers) by car, following the I-90 route.

Dewey and Boyds are 17 hours 24 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Boyds, WA.

Please note the time difference between Dewey, SD and Boyds, WA is 1 hour. The current time in Dewey is 7:41 am and the current time in Boyds is 6:41 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Boyds, WA? Here there are some offers to rent a car in Dewey, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dewey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 38.69 gallons of gas to cover the route between Dewey, SD and Boyds, WA.

The estimated cost of gas to go from Dewey to Boyds is $126.19.

During the route, an average car will release 757.94 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 Dewey, SD and Boyds, WA

If you want to meet halfway between Dewey, SD and Boyds, WA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.756982 and -111.15264, or 45º 45' 25.1352" N, 111º 9' 9.504" W. This location is 481.64 miles away from Dewey, SD and Boyds, WA and it would take approximately 8 hours 42 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Belgrade, MT, situated 489 miles from Dewey, SD and 476 miles from Boyds, WA. It would take 8 hours 52 mins to go from Dewey to Belgrade and 8 hours 36 mins to go from Boyds to Belgrade.