Distance between cities › USA › Texas › Trinity, TX › Distance from Trinity to Rapid City Book Hotels

Distance from Trinity, TX to Rapid City, SD

Distance

1,250 mi

Time

22 hours 15 mins

Gas Cost

$117 - $227

There are 1,003.32 miles from Trinity to Rapid City in northwest direction and 1,250 miles (2,011.68 kilometers) by car, following the I-45 and US-190 route.

Trinity and Rapid City are 22 hours 15 mins far apart, if you drive non-stop .

This is the fastest route from Trinity, TX to Rapid City, SD. The halfway point is Wells, KS.

Please note the time difference between Trinity, TX and Rapid City, SD is 1 hour. The current time in Trinity is 5:03 am and the current time in Rapid City is 4:03 am.

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Lowest Price Rental Cars in Trinity, TX

Planning on renting a car to go from Trinity, TX to Rapid City, SD? Here there are some offers to rent a car in Trinity, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Trinity »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 50.21 gallons of gas to cover the route between Trinity, TX and Rapid City, SD.

The estimated cost of gas to go from Trinity to Rapid City is $163.78.

During the route, an average car will release 983.68 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 Trinity, TX and Rapid City, SD

If you want to meet halfway between Trinity, TX and Rapid City, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.167480 and -97.614471, or 39º 10' 2.928" N, 97º 36' 52.0956" W. This location is 625.10 miles away from Trinity, TX and Rapid City, SD and it would take approximately 11 hours 7 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Wells, KS, situated 668 miles from Trinity, TX and 597 miles from Rapid City, SD. It would take 10 hours 37 mins to go from Trinity to Wells and 9 hours 45 mins to go from Rapid City to Wells.