2.1 Bar to Psi

2.1 bar ≈ 30.458 psi

Calculation: psi = 2.1 bar × 14.5038 ≈ 30.458 psi

Bar to Psi Converter

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How much pressure is 2.1 bar?

30.5 psi (210 kPa) is comparable to a mountain-bike or gravel-bike tire inflation pressure.

What does 2.1 bar look like?

Illustration of a mountain bike tire
30.5 psi (210 kPa) is comparable to a mountain-bike or gravel-bike tire inflation pressure.

Did you know? Car tire (typical) is 230 kPa.

Most passenger cars use 200-250 kPa (29-36 psi). The correct pressure is on a sticker inside the driver's door.

How to Convert Bar to Psi

1 bar = 14.5038 psi

Psi = Bar × 14.5038

Example: 2.1 bar × 14.5038 = 30.458 psi

Reverse Conversion

To convert psi back to bar:

  • Remember, 1 psi equals 0.0689476 bar.
  • To convert 30.458 psi to bar, multiply 30.458 x 0.0689476, resulting in 2.1 bar.

2.1 bar is also equal to:

  • 210000 pascal
  • 210 kPa
About these units

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

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

Frequently Asked Questions

How much is 2.1 bar in psi?

2.1 bar equals 30.458 psi. This is calculated by multiplying 2.1 by the conversion factor 14.5038.

What does 2.1 bar look like in psi?

2.1 bar (30.458 psi) is low-pressure applications — car tires are typically 2.0-2.5 bar.

How do you calculate 2.1 bar to psi?

Multiply 2.1 by the conversion factor 14.5038. The calculation is 2.1 × 14.5038 = 30.458 psi. This factor is defined by international measurement standards.

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2.1 bar = 30.4579 psi
2.1 bar = 30.4579 psi — conversion chart

Nearby Conversions

0.1 bar1.45 psi 1.1 bar15.95 psi 3.1 bar44.96 psi 4.1 bar59.47 psi 5.1 bar73.97 psi 6.1 bar88.47 psi 7.1 bar103 psi 8.1 bar117.5 psi 9.1 bar132 psi 10.1 bar146.5 psi 11.1 bar161 psi 12.1 bar175.5 psi

For general conversions between bar and psi, see the bar to psi 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.