Distance between cities › USA › South Dakota › Webster, SD › Distance from Webster to Roy Book Hotels

Distance from Webster, SD to Roy, UT

Distance

1,065 mi

Time

18 hours 36 mins

Gas Cost

$99 - $193

There are 783.46 miles from Webster to Roy in southwest direction and 1,065 miles (1,713.95 kilometers) by car, following the I-90 route.

Webster and Roy are 18 hours 36 mins far apart, if you drive non-stop .

This is the fastest route from Webster, SD to Roy, UT.

Please note the time difference between Webster, SD and Roy, UT is 1 hour. The current time in Webster is 5:48 am and the current time in Roy is 4:48 am.

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Lowest Price Rental Cars in Webster, SD

Planning on renting a car to go from Webster, SD to Roy, UT? Here there are some offers to rent a car in Webster, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Webster »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 42.77 gallons of gas to cover the route between Webster, SD and Roy, UT.

The estimated cost of gas to go from Webster to Roy is $139.52.

During the route, an average car will release 838 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 Webster, SD and Roy, UT

If you want to meet halfway between Webster, SD and Roy, UT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.090558 and -104.365522, or 43º 5' 26.0088" N, 104º 21' 55.8792" W. This location is 532.52 miles away from Webster, SD and Roy, UT and it would take approximately 9 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Lance Creek, WY, situated 555 miles from Webster, SD and 513 miles from Roy, UT. It would take 9 hours 51 mins to go from Webster to Lance Creek and 9 hours 10 mins to go from Roy to Lance Creek.