Here's how to convert miles per hour (mph) to kilometers per hour (km/h):

1. Conversion Factor:

* 1 mile is approximately equal to 1.60934 kilometers.

2. Calculation:

* Multiply the speed in mph by the conversion factor:

26 mph * 1.60934 km/mile ≈ 41.84 km/h

Therefore, an automobile traveling at 26 miles per hour is traveling at approximately 41.84 kilometers per hour.