This feat was done in the very first chapter, Ryouga performed this feat to pass a test. The feat.
Calculation[]
House: 155 px = 6 meters (2 stories)
Boulder: 167 px, 98 px = 6.46 m, 3.79 m (Radius: 1.9 m)
Volume (Cylinder): 73.26 m^3
Density: 2750 kg/m^3
Mass: 201,465 kg or 222 Tons (Class K)
KGiffoni's Advice[]
They suggested that I used a semi-ellipsoid for the volume and provided this calculator.
Other calcs that used ellipsoids I've seen had B and C equal. I already have the values calculated above.
A: 3.23 m
B: 1.9 m
C: 1.9 m
Volume: 24.421 m^3
Mass: 67,157.75 kg or 74.029 Tons (Class 100)
Conclusion[]
This was done pretty casually as he was able to run around with it on his back.
This is a big improvement to Ryouga's base strength, which on his bio is only Class 10. He could potentially be Class M in his Burst form, considering in the profile he was 1 tier above his base. Hopefully, this will get accepted, if there are some problems in my calc point them out because I'm just starting out.