=Credits to OnyxGZ for the calc[]
Summary[]
GMK Godzilla unleashes a powerful atomic breath capable of creating a mushroom cloud.
Base atomic breath[]
Godzilla's signature weapon is his powerful Atomic Breath (放射熱線 Hōsha Nessen, lit. Radioactive Heat Ray). The GMK Godzilla's atomic breath returns to the traditional bluish-hued laser of the Heisei series rather than the incendiary fiery-orange beam fired by the first two Millennium Godzillas.
Calculation[]
In this
Godzilla's height = 210px = 60 meters
Atomic breath (diameter) = 56px = 16 meters
Atomic breath (radius) = 8 meters
In this pic
Distance = 1,354.97 meters
Using Cylinder area formula
(2 × pi × 8 × 1,354,97) + (2 × pi × 8^2) = 68,510.344625012 m²
100,000°C[]
Using Showa Godzilla's atomic breath temperature
P = (5.67 x 10^-8) x 68,510.344625012 x 100,000^4 = 3.88453654E+17 Watts = 92.8426515296 Megatons (City level+)
500,000°C[]
Using Heisei Godzilla's atomic breath temperature
P = (5.67 x 10^-8) x 24,222.7525 x 500,000^4 = 2.42783534E+20 Watts = 58.0266572658 Gigatons (Island level+)
100,000,000 °C[]
Using 100,000,000 °C according this guide
P = (5.67 x 10^-8) x 24,222.7525 x 100,000,000^4 = 1.3734301e+29 Watts = 32.82577 Exatons (Moon level)
Gravitational atomic breath[]
Godzilla demonstrates a variation of his normal atomic breath at the end of the film, when he absorbs energy from King Ghidorah's gravity beams into his dorsal plates and combines it with his atomic breath, producing an even stronger blue beam wrapped in a yellow electrical spiral, called the Gravitational Atomic Breath (引力放射熱線 Inryoku Hōsha Nessen). This beam was powerful enough to destroy King Ghidorah in a single hit.
Calculation[]
In this
King Ghidorah = 500px = 49 meters
Atomic breath (diameter) = 600px = 58.8 meters
Atomic breath (diameter) = 29.4 meters
Using the Cylinder area formula
(2 × pi × 29.4 × 1,354,97) + (2 × pi × 29.4^2) = 255,728.64536479 m²
100,000°C[]
Using 100,000°C
P = (5.67 x 10^-8) x 160,736.515 x 500,000^4 = 1.44998142E+18 Watts = 346.553876673 Megatons (Mountain level)
500,000°C[]
Using 500,000°C
P = (5.67 x 10^-8) x 160,736.515 x 500,000^4 = 9.06238387E+20 Watts = 216.5961728011 Gigatons (Large Island level)
900,000°C[]
Using 900,000°C
P = (5.67 x 10^-8) x 255,728.64536479 x 900,000^4 = 9.51332809E+21 Watts = 2.2737399833 Teratons (Small Country level)
100,000,000 °C[]
Using 100,000,000 °C according this guide
P = (5.67 x 10^-8) x 255,728.64536479 x 100,000,000^4 = 1.4499814e+30 Watts = 346.55387 Exatons (Moon level+)