Minato speed calc

Feat from chapter 501

Kushina 165cm or 192.3px of 985px, which is 19.52284264% , 19.52284264% of 70 degrees is 13.6659 degrees, 165cm is 13.6659 degrees at 688.4932cm or 6.8849m or 22.5883 feet, which is the distance the palm of the nine tails traveled

Minato is 179.2cm or 27px of 984px = 2.74390244%, 2.74390244% of 70 degrees is 1.920731708 degrees, Minato 179.2cm is 1.920731708 degrees at 5345.0682cm or 53.45m or 175.36313 feet, which is the distance he traveled

5345.0682cm / 688.4932cm is 7.7634x differences in speed

Gamabunta is 1700cm / 528.3 = 3.2178cm/px

9 Tails ear 519.5 x 3.2178 cm/px = 1671.6827cm

9 tails ear 1671.6827cm / 135.6 = 12.3280cm/px

9 tails palm 64.8px X 12.3280cm/px = 798.8572cm

9 tails ear 1671.6827cm / 104.6px = 15.9816cm/px

radius of blast 51px X 15.9816cm/px = 815.0652cm

The minimum distance Minato needed to travel is the full length of the 9 tails palm, as he would have to cover half the distance to the center of the palm and the other half in exiting the palm, which is 798.8572cm and 798.8572cm /  688.4932cm is 1.1602x difference in speed

to clear the destruction of the blast would be 815.0652cm + 399.4286cm half the distances of the palm or 1214.4938cm, 1214.4938cm / 688.4932cm, the distance the 9 tails palm traveled, = 1.7639x difference in speed

Obito says, " You really are a flash..." which is an indicator of an extreme speed difference in the actions of Minato and the 9 tails, which16-76% difference is not, so I find it far more likely that the distance to the cliff the thing Obito was looking at well saying this is what is being referred to which would be the 7.7634x difference in speed