If the pressure inside a rubber balloon is 1500 mmhg, what is this pressure in pounds-force per square inch (psi)

To convert the unit of pressure from mmHg to psi, we know that there are 51.71484 mmHg per 1 psi. Therefore using this conversion factor:

pressure = 1,500 mmHg * (1 psi / 51.71484 mmHg)

pressure = 29 psi = 29 pounds-force per square inch