Talk:Circuit of The Americas/@comment-33029580-20181128093036/@comment-33029580-20181128145402

SlatBH, that official site has the track lenghts I was searching for:

Grand Prix: 3.4 miles = 5.472 km

National: 2.3 miles = 3.701 km

Club: 1.1 miles = 1.770 km