Lbs to PSF Calculator - Convert Pounds to Pounds per Square Foot

Last updated: 30 Sep 2025 | Author: Brij | Review By: Irshad

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Quickly convert pounds to pounds per square foot (psf) with our free online Lbs to PSF Calculator. Enter weight in pounds and area in square feet to get instant psf results for your project.

Weight:

Pounds (lb) or Kilograms (kg)

Area:

Square Feet (ft²) or Square Meters (m²)

Pressure / Load Calculation Results

Pressure / Load:

Pounds per Square Foot (psf)

When working in construction, engineering, or flooring load calculations, it’s common to need to convert weight in pounds (lbs) over an area into pounds per square foot (psf). Our Lbs to PSF Calculator simplifies this process. Just input the total weight in pounds and the area in square feet, and you’ll instantly get the load in PSF.

Formula for Lbs to PSF

The formula to convert lbs and area (ft²) into psf is:

$\text{PSF} = \frac{\text{Weight (lbs)}}{\text{Area (ft}^2\text{)}}$

Step-by-Step

Enter the total weight in pounds (lbs).
Enter the area in square feet (ft²).
Divide weight by area to get pounds per square foot (psf).

Example Calculation

Problem:

You have a total weight of 500 lbs spread evenly over an area of 25 ft². What is the load in psf?

Solution Formula:

$\text{PSF} = \frac{500 \text{ lbs}}{25 \text{ ft}^2}$

Calculation:

$\text{PSF} = 20 \, \text{psf}$

So, the load is 20 psf.

Why Use a Lbs to PSF Calculator?

Quick and accurate load conversions
Useful for construction, HVAC, flooring, and engineering projects
Eliminates manual math errors

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