To convert miles to kilometers, you can use the conversion factor that 1 kilometer equals 0.62 miles. Therefore, to find how many kilometers equal 16 miles, you can set up the equation:
\[ \text{k} = \frac{\text{miles}}{0.62} \]
Substituting in the value for miles:
\[ \text{k} = \frac{16}{0.62} \approx 25.8 \]
So, 16 miles is approximately 25.8 kilometers when rounded to the nearest tenth.
The answer is 25.8 kilometers.