Pounds per Square Foot to Pounds per Square Inch Converter
Convert pounds per square foot (psf) to pounds per square inch (psi), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a pressure, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 psf = 0.00694444444444 psi
- 1 × 0.00694444444444 = 0.00694444444444 psi
How to convert pounds per square foot to pounds per square inch
1 psi = 144 psf, so divide by 144 to go from pounds per square foot to pounds per square inch (1 psf = 0.00694444444444 psi).
psi = psf ÷ 144 psf = psi × 144
Worked example:
1 psf = 0.00694444444444 psi 5 × 0.00694444444444 = 0.0347222222222 psi
Pounds per Square Foot to pounds per square inch table
| Pounds per Square Foot | Pounds per Square Inch |
|---|---|
| 1 psf | 0.00694444444444 psi |
| 2 psf | 0.0138888888889 psi |
| 3 psf | 0.0208333333333 psi |
| 4 psf | 0.0277777777778 psi |
| 5 psf | 0.0347222222222 psi |
| 6 psf | 0.0416666666667 psi |
| 7 psf | 0.0486111111111 psi |
| 8 psf | 0.0555555555556 psi |
| 9 psf | 0.0625 psi |
| 10 psf | 0.0694444444444 psi |
| 15 psf | 0.104166666667 psi |
| 20 psf | 0.138888888889 psi |
| 25 psf | 0.173611111111 psi |
| 30 psf | 0.208333333333 psi |
| 40 psf | 0.277777777778 psi |
| 50 psf | 0.347222222222 psi |
| 75 psf | 0.520833333333 psi |
| 100 psf | 0.694444444444 psi |
| 250 psf | 1.73611111111 psi |
| 500 psf | 3.47222222222 psi |
| 1000 psf | 6.94444444444 psi |
About the units
- Pounds per Square Foot (psf)
- Pounds per square foot, a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
- Pounds per Square Inch (psi)
- Pounds per square inch, a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
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