Pounds per square foot to pounds per square inch
Type a value in psf to get it in psi instantly.
Nothing on our list is smaller: a vacuum cleaner is 42× higher. Spread over a fingertip, that is like resting 0.004882 kg on it.
What it means
How much pressure is that?
Tyre and tank figures are gauge pressure, measured above the surrounding air. Weather and altitude figures are absolute.
The math
How to convert psf to psi
To convert pounds per square foot to pounds per square inch, multiply by 0.00694444.
Example: 10 psf × 0.00694444 = 0.0694444 psi.
In the other direction, 1 psi = 144 psf.
Every unit
Your pressure 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 |
| 10 psf | 0.0694444 psi |
| 15 psf | 0.104167 psi |
| 20 psf | 0.138889 psi |
| 30 psf | 0.208333 psi |
| 50 psf | 0.347222 psi |
| 100 psf | 0.694444 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 |
| 10 psi | 1,440 psf |
| 15 psi | 2,160 psf |
| 20 psi | 2,880 psf |
| 30 psi | 4,320 psf |
| 50 psi | 7,200 psf |
| 100 psi | 14,400 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.
The units
About these units
Pounds per square foot (psf)
A pound per square foot is a 144th of a psi, about 47.9 pascals. US structural loads, such as snow on a roof, are given in psf.
Pounds per square inch (psi)
One psi is one pound of force on one square inch, about 6,895 pascals. US tyre gauges, compressors and plumbing all read in psi.
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