1 ksf = 6.944 psi, so psi = ksf × 1,000 / 144. (1 ksf = 1 kip/ft².)
| ksf | psi |
|---|---|
| 1 | 6.944 |
| 2 | 13.89 |
| 5 | 34.72 |
| 10 | 69.44 |
| 50 | 347.2 |
| 100 | 694.4 |
Multiply ksf by 1,000/144 = 6.944. Example: 2 ksf = 13.89 psi.
1 ksf = 1 kip/ft² = 1,000 lbf / 144 in² = 6.944 psi.
1 ksf = 47.88 kPa.