Question

A weather report indicates the barometric is 29.75 in of mercury. What is the atmospheric pressure in psi

Answer 1

1 atmosphere = 14.7 psi

Convert psi to inches of mercury

Multiply by psi measurement

$\implies \frac{30}{14.7}=2.041$

In psi $\frac{29.75}{2.041}=14.57 psi$