  Superfluid $T_c$ of liquid helium-3 and its pressure dependence are
calculated by using a relation obtained from our macro-orbital microscopic
theory. The results agree closely with experiments. This underlines the
accuracy of our relation and its potential to provide superfluid $T_c$ of
electron fluid in widely different superconductors and renders experimental
foundation to our conclusion related to the basic factors responsible for the
formation of (q, -q) bound pairs of fermions and the onset of superfluidity in
a fermionic system.
