If you are referring to the distance between the city of Dublin and the county town of Ennis in County Clare, the approximate distance by road is around 230 kilometers (approximately 143 miles). This can take about 2.5 to 3 hours to drive, depending on traffic and road conditions.
It's important to note that Ireland is a relatively small country, so distances between different locations are generally not very significant. However, the exact distance between Dublin and Clare may vary depending on the specific routes and points of interest you are considering.