How many pounds of force is 360 gigapscals?

Answer 1

"Pascal" is a unit of pressure, not just another unit of force.

1 pascal = (1 newton of force) / (1 square meter of area) .

So the total force corresponding to any given pressure depends on
the area over which the force is spread to produce the pressure.

If your (360 x 10^9) Pa of pressure extends over 1 square meter of area,
then the total force on that square meter is (360 x 10^9) newtons, about
81 Gigapounds (40.5 million tons).

If that pressure appears at the point of an osmium stylus in a laboratory press,
with an area of, let's say, 0.001 square millimeter, then the total force on that
point is (360 x 10^9 Pa) x (10^-9 square meter) = 360 newtons, about 81 pounds.

That's why it's possible to do super-high-pressure Physics in a laboratory with just
a hand-lever . . . but only over a tiny area.

Answer 2

There can be no answer. A pound is a measure of mass and, at a stretch, a measure of force - although formally that should be "pound weight". A gigapascal is a measure of pressure. The two measure different things and, according to the very basic rules of dimensional analysis, any attempt at conversion between the two is not valid.