Q:

# How do you calculate PSI?

A:

The psi, or pounds per square inch, is a unit of pressure (P) using the foot-pound-second (FPS) system. To calculate psi, divide the force applied (F) with the area (A).

Know More

## Keep Learning

1. Measure the force applied

Use an instrument such as a force gauge, spring scale or strain gauge. Make sure that the unit is in pounds. Convert the value if necessary.

2. Measure the total area on which force is applied

Measure the length and the width, and make sure that both values use the same unit, in this case inches, you can proceed to multiply them.

3. Calculate the pressure in psi

Divide the measured force (in pounds) with the measure area (in square inches).

Sources:

## Related Questions

• A:

A linear foot, otherwise known as a lineal foot, is equivalent to any one-foot length of a long object, and there is no difference in length between one linear foot and one foot. Particular industries, such as construction and archiving, use the term linear foot to avoid confusion with the square foot or cubic foot.

Filed Under:
• A:

Calculating the occupant load of a room or building requires first calculating the area of the space in question in square feet, and then dividing the area by the occupant load factor specified by the International Building Code. The resulting number from this calculation determines how many occupants can legally use the space at one time.

Filed Under:
• A:

In general terms, the length of a stringer for a stairs is 14 inches for every step. For a more precise calculation, you need the know the height of the riser and the width of the tread for the steps.