Demon Slayer Upper moon 4 Calc (credit: James Daley)

https://cdn.discordapp.com/attachments/839133973803958292/839310287315533864/image0.png

https://cdn.discordapp.com/attachments/839133973803958292/839310287626436618/image1.png

Length = 2,000cm

Width = 142cm

Tanjiro’s height = 165cm

39.13 Tons in weight

21,022.47 m/s or Mach 61.29 (Atleast)

= 2,066 Tons via Kinetic Energy

Small Town Level

(Why Mach 61.29?)

https://cdn.discordapp.com/attachments/839133973803958292/839310771128631296/image0.png

As a low ball we know Nezuko had to move the equivalent of tanjiro’s torso and head...

Nezuko’s movement = 72.6cm

Lightning’s movement = 517.6cm

(Lightning moves at Mach 437)

Meaning Nezuko as a low ball moved at Mach 61.29

(Why i think the calc stack is valid: these 2 feats happened right next to each other, nezuko is shown to be pushing herself to the same degree as she is trying to protect Tanjirou at any cost so i dont see any reason not to compare the dragons speed to this feat especially since i took the liberty of low balling nezuko's speed in the calc)

(Side note: the measurements for the dragon was very hard to do so I worked to the best of my ability... even if they’re slightly off it’ll still be low - mid Small Town, also realistically you could argue Nezuko could be faster via scaling the distance of her lunge instead of Tanjiro’s torso but that be more a mid ball)

(Also there’s 2 dragons so technically you could double this calc, but that’s got a few problems with it)

(Also technically he made 5 dragon heads)

(Conclusion):

Hantengu = Small Town Level

Nezuko = High Hypersonic+