Method
The converter uses the hydrostatic relationship between pressure difference and liquid-column height. Because both quantities represent a difference from the reference pressure, bar(g) is appropriate here.
H = P / (ρg) • P = ρgH • 1 bar = 100,000 Pa
Engineering note: The result assumes a static, uniform-density column and standard gravity. It does not include friction loss, acceleration head or local elevation effects in a flowing system.