429 Psi to MPa

429 psi ≈ 2.9579 MPa

Calculation: MPa = 429 psi × 0.00689476 ≈ 2.9579 MPa

Psi to MPa Converter

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How much pressure is 429 psi?

429 psi (2,958 kPa) is comparable to the pressure inside a CO₂ cartridge or small gas cylinder.

What does 429 psi look like?

Illustration of a CO2 cartridge
429 psi (2,958 kPa) is comparable to the pressure inside a CO₂ cartridge or small gas cylinder.

Did you know? CO2 cartridge is 3,000 kPa.

Small CO2 cartridges (for soda makers, paintball) operate at about 3,000 kPa (435 psi) at room temperature.

How to Convert Psi to MPa

1 psi = 0.00689476 MPa

MPa = Psi × 0.00689476

Example: 429 psi × 0.00689476 = 2.9579 MPa

Reverse Conversion

To convert MPa back to psi:

  • Remember, 1 MPa equals 145.038 psi.
  • To convert 2.9579 MPa to psi, multiply 2.9579 x 145.038, resulting in 429 psi.

429 psi is also equal to:

  • 2957900 pascal
  • 2957.9 kPa
  • 29.579 bar
About these units

Psi: Imperial/US customary pressure unit equal to one pound-force per square inch.

MPa: SI-derived pressure unit equal to 1,000,000 pascals (10⁶ Pa).

Frequently Asked Questions

How much is 429 psi in MPa?

429 psi equals 2.9579 MPa. This is calculated by multiplying 429 by the conversion factor 0.00689476.

What does 429 psi look like in MPa?

429 psi (2.9579 MPa) is very high pressure — scuba tanks (3,000 psi) or industrial cylinders.

How do you calculate 429 psi to MPa?

Multiply 429 by the conversion factor 0.00689476. The calculation is 429 × 0.00689476 = 2.9579 MPa. This factor is defined by international measurement standards.

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429 psi = 2.95785 MPa
429 psi = 2.95785 MPa — conversion chart

Nearby Conversions

379 psi2.613 MPa 384 psi2.648 MPa 389 psi2.682 MPa 394 psi2.717 MPa 399 psi2.751 MPa 404 psi2.785 MPa 409 psi2.82 MPa 414 psi2.854 MPa 419 psi2.889 MPa 424 psi2.923 MPa 434 psi2.992 MPa 439 psi3.027 MPa 444 psi3.061 MPa 449 psi3.096 MPa 454 psi3.13 MPa 459 psi3.165 MPa 464 psi3.199 MPa 469 psi3.234 MPa 474 psi3.268 MPa 479 psi3.303 MPa

For general conversions between psi and MPa, see the psi to MPa converter.

Also convert Psi to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 atm = 101 325 Pa by definition (BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.