Distance from ZIP 78618 to 78631
Doss, TX → Harper, TX
Straight Line Distance
13 miles
21 km
Great circle distance between ZIP code centers
Driving (est.)
≈ 14min
At 90 km/h average. Actual road distance is typically 15-30% longer.
Flying (est.)
≈ 46min
At 850 km/h cruise plus takeoff and landing.
Route Map
Frequently Asked Questions
The straight-line distance between ZIP code 78618 (Doss, TX) and 78631 (Harper, TX) is 13 miles (21 km).
Driving takes approximately 14min at an average speed of 90 km/h. Actual road distance is typically 15-30% longer than the straight line.