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

Distance from Otto, TX to O Brien, TX

Distance

312 mi

Time

5 hours 47 mins

Gas Cost

$29 - $56

There are 221.64 miles from Otto to O Brien in northwest direction and 312 miles (502.12 kilometers) by car, following the US-81 and US-287 route.

Otto and O Brien are 5 hours 47 mins far apart, if you drive non-stop .

This is the fastest route from Otto, TX to O Brien, TX. The halfway point is Millsap, TX.

Otto, TX and O Brien, TX are in the same time zone (CDT). Current time in both locations is 6:03 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Otto, TX to O Brien, TX:

Lowest Price Rental Cars in Otto, TX

Planning on renting a car to go from Otto, TX to O Brien, TX? 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 12.54 gallons of gas to cover the route between Otto, TX and O Brien, TX.

The estimated cost of gas to go from Otto to O Brien is $40.72.

During the route, an average car will release 245.62 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 $3.25 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Otto, TX and O Brien, TX

If you want to meet halfway between Otto, TX and O Brien, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 32.800613 and -98.007935, or 32º 48' 2.2068" N, 98º 0' 28.566" W. This location is 156.08 miles away from Otto, TX and O Brien, TX and it would take approximately 2 hours 53 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Millsap, TX, situated 149 miles from Otto, TX and 142 miles from O Brien, TX. It would take 2 hours 33 mins to go from Otto to Millsap and 3 hours 4 mins to go from O Brien to Millsap.