Board Thread:Naruto Discussions/@comment-3568954-20160805100852/@comment-26005711-20160809105858

SwordSlayer99 wrote: "And how do you know that Naruto's RS crossed over 18 miles?"

Math. In the bottom right of this scan http://imgur.com/a/NBhFK you can see Konan and Konan is 1.69 meters tall according to the databook that means the radius of that tree is 9.76 m, that means the full diameter is 19.52 meters. Now in the top right of that scan you can see the diameter of the tree compared to height, the tree itself is 141 meters tall.

Now in this scan here http://imgur.com/a/Xy27M you can see the 141 meter tree looking like a dot compared to the Mountain. That Mountian is 3,413 meters or 3.4 Km tall.

Now you can see the 3.4 km mountain compared to the Chibaku Tensei crater here http://imgur.com/a/pbnwK. The crater is approximately 11.359375 times bigger than the Mountain is. 11.359375 * 3.4 km = 38.621875 km.

Naruto's FRS crossed almost 40 KM in less than 1 second..... I checked and you're right.