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

Distance from Webster, SD to Ardmore, OK

Distance

822 mi

Time

15 hours 13 mins

Gas Cost

$77 - $149

There are 771.19 miles from Webster to Ardmore in south direction and 822 miles (1,322.88 kilometers) by car, following the US-81 route.

Webster and Ardmore are 15 hours 13 mins far apart, if you drive non-stop .

This is the fastest route from Webster, SD to Ardmore, OK. The halfway point is Hebron, NE.

Webster, SD and Ardmore, OK are in the same time zone (CDT). Current time in both locations is 5:57 am.

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Lowest Price Rental Cars in Webster, SD

Planning on renting a car to go from Webster, SD to Ardmore, OK? 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 33.01 gallons of gas to cover the route between Webster, SD and Ardmore, OK.

The estimated cost of gas to go from Webster to Ardmore is $107.67.

During the route, an average car will release 646.70 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 Ardmore, OK

If you want to meet halfway between Webster, SD and Ardmore, OK or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.201870 and -97.622963, or 40º 12' 6.732" N, 97º 37' 22.6668" W. This location is 410.96 miles away from Webster, SD and Ardmore, OK and it would take approximately 7 hours 36 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Hebron, NE, situated 430 miles from Webster, SD and 440 miles from Ardmore, OK. It would take 6 hours 33 mins to go from Webster to Hebron and 6 hours 38 mins to go from Ardmore to Hebron.