http://i.imgur.com/J6zrZUJ.jpg
Size (I have the size from Kepekley23 and Darkanine)
So.
Index finger diameter = 24px = 27mm, or 0.027 meters for an adult
height of their frontal jaw = 16 px = 0.018 meters
Boa constrictor jaw width = 30px = 0.03375m
Naruto = 56px = 1.4478m (but since his head is down, we subtract 1/7.5th of the result, which leaves us with 1.25476m)
Snake jaw width = 198px = 4.43647285714m
The difference in size between Orochimaru's snakes and a real life boa constrictor is about 131.451047619x. The cube of that is 2271392.32981. Considering that an average boa constrictor weighs about 12.5kg:
M = 12.5*2271392.32981 = 28392404.1226 kg
Speed's Boa constrictors strike[]
This
https://www.youtube.com/watch?v=g7wShrffwsw
I got 10 milliseconds for travel time 13.03 seconds to 13.04 seconds (maybe it can travel more faster But I can't get a shorter amount of time)
height of their frontal jaw = 13.22 px = 0.018 meters
Distance = 59.29 px = 0.0807276853 meters
0.0807276853 meters / 10 milliseconds
Speed's Boa constrictors strike = 8.07276853 m/s
8.07276853 / 2.438 = 3.31122581214
320.530234514 * 3.31122581214 = 1061.34798609 m/s
28392404.1226 * 0.5 * 1061.34798609^2 = 1.5991447e+13
= 3.822048 kilotons