42 Bar to KPa

42 bar = 4200 kPa

Calculation: kPa = 42 bar × 100 = 4200 kPa

Bar to KPa Converter

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How much pressure is 42 bar?

609 psi (4,200 kPa) is comparable to the pressure inside a CO₂ cartridge or small gas cylinder.

What does 42 bar look like?

Illustration of a CO2 cartridge
609 psi (4,200 kPa) is comparable to the pressure inside a CO₂ cartridge or small gas cylinder.

How to Convert Bar to KPa

1 bar = 100 kPa exact

KPa = Bar × 100

Example: 42 bar × 100 = 4200 kPa

Reverse Conversion

To convert kPa back to bar:

  • Remember, 1 kPa equals 0.01 bar.
  • To convert 4200 kPa to bar, multiply 4200 x 0.01, resulting in 42 bar.

exact This conversion factor is exact by international definition.

42 bar is also equal to:

  • 4200000 pascal
  • 609.16 psi
About these units

Bar: Metric pressure unit equal to exactly 100,000 pascals.

KPa: SI-derived pressure unit equal to 1,000 pascals (10³ Pa).

Frequently Asked Questions

How much is 42 bar in kPa?

42 bar equals 4200 kPa. This is calculated by multiplying 42 by the conversion factor 100.

What does 42 bar look like in kPa?

42 bar (4200 kPa) is high pressure — scuba regulators or hydraulic lines.

How do you calculate 42 bar to kPa?

Multiply 42 by the conversion factor 100. The calculation is 42 × 100 = 4200 kPa. This factor is defined by international measurement standards.

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42 bar = 4200 kPa
42 bar = 4200 kPa — conversion chart

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For general conversions between bar and kPa, see the bar to kPa converter.

Also convert Bar 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.