Hidroteknik Calculators
Pressure Unit Conversion (bar · psi · MPa)
In hydraulics, pressure appears as bar, psi, MPa and kgf/cm². The factors below let you convert between all of them.
⚙ Open the Hydraulic Calculator →Conversion Factors (1 bar)
1 bar = 100,000 Pa = 100 kPa = 0.1 MPa
1 bar = 14.5038 psi
1 bar = 1.01972 kgf/cm² ≈ 0.987 atm
Units
| Quantity | Symbol | Unit |
|---|---|---|
| bar | → psi | × 14.5038 |
| psi | → bar | ÷ 14.5038 |
| bar | → MPa | × 0.1 |
| bar | → kgf/cm² | × 1.0197 |
Worked Example
Given: Two common conversions.
1) 250 bar in psi → 250 × 14.5038 = 3,626 psi
2) 3000 psi in bar → 3000 ÷ 14.5038 = 206.8 bar
3) 250 bar = 25 MPa = 254.9 kgf/cm²
Frequently Asked Questions
What is the ratio between bar and psi?
1 bar = 14.5038 psi. Multiply to go from bar to psi, divide to go from psi to bar.
How does bar relate to MPa?
1 bar = 0.1 MPa, so 10 bar = 1 MPa. MPa is the SI unit and is common in engineering calculations.
Is kgf/cm² almost the same as bar?
Yes, very close: 1 bar = 1.0197 kgf/cm². In practice they are often treated as equal, but a precise calculation should use the factor.