How do you convert psi to inches of mercury (inHg)?

To convert psi (pounds per square inch) to inches of mercury, the correct method involves using a specific conversion factor. The value of 1 psi is equivalent to approximately 0.0689 inches of mercury. Therefore, to find the equivalent measurement in inches of mercury, you multiply the number of psi by this conversion factor.

The correct formula, which aligns with the chosen answer, effectively accounts for the relationship between the two units of pressure. This means that if you have a certain pressure measured in psi, multiplying it by 0.0689 will yield the corresponding pressure in inches of mercury. This is particularly useful in HVAC applications where understanding pressure in various units is important for system performance and diagnostics.

By using this conversion factor, you can accurately convert pressures measured in psi to a more commonly used format in different contexts, like in HVAC systems, where inches of mercury might be the standard measurement for vacuum or pressure readings.