User blog:Gwynbleiddd/Bleach calc - Toshiro's Sennen Hyoro

Shinigami (don't know which one) = 17 px ~ 1.75 m (assumption)

diameter = 151 px = 15.5 m

height = 235 px = 24.2 m

radius = 7.75 m

Volume of cylinder = π*r^2*h

V = 4 566.3 m^3

density of ice ~ 916 kg/m^3

m = ρ*V

m = 4 182 730.8 kg

Q = m*(L + c*ΔΤ)

ΔΤ ~ 25 Κ

c = 4200 J/kg*K

L = 334000 J/kg

Q = m*(334000 + 4200*25)

Q = 1.83*1012 Joules (438.9 Tons of TNT) Multi-City Block level

A decent feat for Toshiro.