Pounds per square foot to pounds per square inch
Type a value in psf to get it in psi instantly.
0.01736psi
Nothing on our list is smaller: a domestic roof is 6.3× heavier. That allows about 0.1526 people of 80 kg on every square meter.
What it means
How much can it carry?
These are characteristic loads, before partial safety factors. Codes multiply them by 1.5 or so before a member is actually sized.
The math
How to convert psf to psi
To convert pounds per square foot to pounds per square inch, multiply by 0.00694444.
Example: 2.5 psf × 0.00694444 = 0.0173611 psi.
In the other direction, 1 psi = 144 psf.
Every unit
Your load in every unit
Tables
psf to psi conversion table
| psf | psi |
|---|---|
| 0.5 psf | 0.00347222 psi |
| 1 psf | 0.00694444 psi |
| 1.5 psf | 0.0104167 psi |
| 2 psf | 0.0138889 psi |
| 2.5 psf | 0.0173611 psi |
| 3 psf | 0.0208333 psi |
| 4 psf | 0.0277778 psi |
| 5 psf | 0.0347222 psi |
| 7.5 psf | 0.0520833 psi |
| 10 psf | 0.0694444 psi |
| 20 psf | 0.138889 psi |
psi to psf conversion table
| psi | psf |
|---|---|
| 0.5 psi | 72 psf |
| 1 psi | 144 psf |
| 1.5 psi | 216 psf |
| 2 psi | 288 psf |
| 2.5 psi | 360 psf |
| 3 psi | 432 psf |
| 4 psi | 576 psf |
| 5 psi | 720 psf |
| 7.5 psi | 1,080 psf |
| 10 psi | 1,440 psf |
| 20 psi | 2,880 psf |
Quick answers
Quick answers
- How many psi is 1 psf?
- 1 psf is 0.00694444 psi.
- How many psi is 10 psf?
- 10 psf is 0.0694444 psi.
- How many psi is 2.5 psf?
- 2.5 psf is 0.0173611 psi.
The units
About these units
Pounds per square foot (psf)
The US structural unit. 1 kN/m² is 20.9 psf.
Pounds per square inch (psi)
For concentrated loads and bearing pressures.
Keep going