Distance between cities › USA › Texas › Otto, TX › Distance from Otto to Keystone Book Hotels

Distance from Otto, TX to Keystone, SD

Distance

1,182 mi

Time

21 hours 13 mins

Gas Cost

$110 - $214

There are 932.03 miles from Otto to Keystone in northwest direction and 1,182 miles (1,902.24 kilometers) by car, following the I-135 route.

Otto and Keystone are 21 hours 13 mins far apart, if you drive non-stop .

This is the fastest route from Otto, TX to Keystone, SD.

Please note the time difference between Otto, TX and Keystone, SD is 1 hour. The current time in Otto is 5:28 am and the current time in Keystone is 4:28 am.

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Lowest Price Rental Cars in Otto, TX

Planning on renting a car to go from Otto, TX to Keystone, SD? Here there are some offers to rent a car in Otto, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Otto »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 47.46 gallons of gas to cover the route between Otto, TX and Keystone, SD.

The estimated cost of gas to go from Otto to Keystone is $154.83.

During the route, an average car will release 929.90 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 Otto, TX and Keystone, SD

If you want to meet halfway between Otto, TX and Keystone, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.03262 and -97.614192, or 40º 1' 57.432" N, 97º 36' 51.0912" W. This location is 590.92 miles away from Otto, TX and Keystone, SD and it would take approximately 10 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 Chester, NE, situated 634 miles from Otto, TX and 549 miles from Keystone, SD. It would take 11 hours 9 mins to go from Otto to Chester and 10 hours 8 mins to go from Keystone to Chester.