Some countries use commas as a decimal point, but even then, 9.7?
1 mile is 1.6 km with some change, so 20 miles would be around 32 km. If you'd plug the numbers in reverse, that would still give you 12.42.
I can't even imagine how they got that number.
EDIT: Ooooh, they probably asked chatgpt to calculate that, or even to write the whole article.
Arrr