Template:圧力の単位
| パスカル（SI単位） | バール | 工学気圧 | 気圧 | トル | psi | |
|---|---|---|---|---|---|---|
| 1 Pa | ≡ 1 N/m² | = 10-5 bar | ≈ 10.2×10-6 at | ≈ 9.87×10-6 atm | ≈ 7.5×10-3 Torr | ≈ 145×10-6 psi |
| 1 bar | = 100 000 Pa | ≡ 106 dyn/cm² | ≈ 1.02 at | ≈ 0.987 atm | ≈ 750 Torr | ≈ 14.504 psi |
| 1 at | = 98 066.5 Pa | = 0.980665 bar | ≡ 1 kgf/cm² | ≈ 0.968 atm | ≈ 736 Torr | ≈ 14.223 psi |
| 1 atm | = 101325 Pa | = 1.01325 bar | ≈ 1.033 at | ≡ p0 | = 760 Torr | ≈ 14.696 psi |
| 1 Torr | ≈ 133.322 Pa | ≈ 1.333×10-3 bar | ≈ 1.360×10-3 at | ≈ 1.316×10-3 atm | ≡ 1 mmHg | ≈ 19.337×10-3 psi |
| 1 psi | ≈ 6894.757 Pa | ≈ 68.948×10-3 bar | ≈ 70.307×10-3 at | ≈ 68.046×10-3 atm | ≈ 51.7149 Torr | ≡ 1 lbf/in² |