Distance between cities › USA › Texas › Tomball, TX › Distance from Tomball to Round Top Book Hotels

Distance from Tomball, TX to Round Top, TX

Distance

72 mi

Time

1 hour 33 mins

Gas Cost

$7 - $13

There are 64.61 miles from Tomball to Round Top in west direction and 72 miles (115.87 kilometers) by car, following the US-290 and TX 6 route.

Tomball and Round Top are 1 hour 33 mins far apart, if you drive non-stop .

This is the fastest route from Tomball, TX to Round Top, TX. The halfway point is Chappell Hill, TX.

Tomball, TX and Round Top, TX are in the same time zone (CDT). Current time in both locations is 1:01 pm.

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Lowest Price Rental Cars in Tomball, TX

Planning on renting a car to go from Tomball, TX to Round Top, TX? Here there are some offers to rent a car in Tomball, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Tomball »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 2.91 gallons of gas to cover the route between Tomball, TX and Round Top, TX.

The estimated cost of gas to go from Tomball to Round Top is $9.45.

During the route, an average car will release 56.99 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 Tomball, TX and Round Top, TX

If you want to meet halfway between Tomball, TX and Round Top, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 30.130589 and -96.183189, or 30º 7' 50.1204" N, 96º 10' 59.4804" W. This location is 36.22 miles away from Tomball, TX and Round Top, TX and it would take approximately 46 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Chappell Hill, TX, situated 41 miles from Tomball, TX and 33 miles from Round Top, TX. It would take 51 minutes to go from Tomball to Chappell Hill and 42 minutes to go from Round Top to Chappell Hill.