How to Convert PSF to PSI
To convert psf to psi, divide the value by 144.
The Formula
PSI = PSF ÷ 144
Key Fact
1 pound per square inch = 144 psf
Tip: To convert psi back to psf, multiply by 144.
PSF to PSI
Convert psf (psf) to psi (psi) with formulas, examples, and conversion tables.
psf
psi
1 psf = 0.006944 psi
Full precision:0.0069444 psi
Step-by-Step Solution
To convert 1 psf to psi, we divide by 144 because one pound per square inch equals exactly 144 psf.
1 pound per square inch = 144 psf
Since there are 144 psf in every pound per square inch, we divide our value by this factor:
1 ÷ 144 = 0.006944 psi
So 1 psf = 0.006944 psi.
Quick check: 0.006944 × 144 = 1 psf
Example Conversions
Example 1: 1 psf = 0.006944 psi
1 ÷ 144 = 0.006944
1 ÷ 144 = 0.006944
Example 2: 5 psf = 0.034722 psi
5 ÷ 144 = 0.034722
5 ÷ 144 = 0.034722
Example 3: 10 psf = 0.069444 psi
10 ÷ 144 = 0.069444
10 ÷ 144 = 0.069444
PSF to PSI Table
| PSF | PSI |
|---|---|
| 1 psf | 0.006944 psi |
| 2 psf | 0.013889 psi |
| 5 psf | 0.034722 psi |
| 10 psf | 0.069444 psi |
| 20 psf | 0.13889 psi |
| 25 psf | 0.17361 psi |
| 50 psf | 0.34722 psi |
| 100 psf | 0.69444 psi |
| 250 psf | 1.7361 psi |
| 500 psf | 3.4722 psi |
| 1000 psf | 6.9444 psi |
1 Pound per Square Foot in Other Units
| Unit | 1 psf = |
|---|---|
| PSF to Pascals | 47.8803 Pa |
| PSF to Kilopascals | 0.04788 kPa |
| PSF to Megapascals | 0.00004788 MPa |
| PSF to Hectopascals | 0.4788 hPa |
| PSF to Bars | 0.0004788 bar |
| PSF to Millibars | 0.4788 mbar |
| PSF to PSI | 0.0069444 psi |
| PSF to Atmospheres | 0.00047254 atm |
| PSF to Torr | 0.35913 Torr |
| PSF to mmHg | 0.35913 mmHg |
| PSF to inHg | 0.014139 inHg |