Distance between cities › USA › South Dakota › Harrisburg, SD › Distance from Harrisburg to Post Book Hotels

Distance from Harrisburg, SD to Post, TX

Distance

941 mi

Time

17 hours 35 mins

Gas Cost

$88 - $171

There are 751.34 miles from Harrisburg to Post in southwest direction and 941 miles (1,514.39 kilometers) by car, following the US-81 route.

Harrisburg and Post are 17 hours 35 mins far apart, if you drive non-stop .

This is the fastest route from Harrisburg, SD to Post, TX.

Harrisburg, SD and Post, TX are in the same time zone (CDT). Current time in both locations is 4:53 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Harrisburg, SD to Post, TX:

Lowest Price Rental Cars in Harrisburg, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Harrisburg »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 37.81 gallons of gas to cover the route between Harrisburg, SD and Post, TX.

The estimated cost of gas to go from Harrisburg to Post is $123.34.

During the route, an average car will release 740.79 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 Harrisburg, SD and Post, TX

If you want to meet halfway between Harrisburg, SD and Post, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.18816 and -99.095505, or 38º 11' 17.376" N, 99º 5' 43.818" W. This location is 470.74 miles away from Harrisburg, SD and Post, TX and it would take approximately 8 hours 47 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Larned, KS, situated 472 miles from Harrisburg, SD and 469 miles from Post, TX. It would take 8 hours 57 mins to go from Harrisburg to Larned and 8 hours 37 mins to go from Post to Larned.