Charles Law
Helium Volume (L) Temperature (K) Temperature (C) T(C) = T(K) -273 Temperature (F) T(F) = 1.80*TŠ +32
0.7 73 -200 -328
1.7 173 -100 -148
2.7 273 0 32
3.7 373 100 212
5.7 573 300 572