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Bar to PSI Converter

Convert bar to PSI and PSI to bar instantly. Bidirectional pressure converter with formula and common values.

bar

PSI

36.2595

psi

2.5 bar = 36.2595 psi

psi = bar × 14.5038

Bar to PSI: 1 bar equals 14.5038 psi. To convert bar to psi, multiply by 14.5038 (psi = bar × 14.5038). For example, 10 bar = 145.038 psi.

How to Convert Bar to PSI

To convert from bar to psi, multiply the value by 14.5038. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Bar to PSI: psi = bar × 14.5038
  • PSI to Bar: bar = psi ÷ 14.5038

Bar to PSI Conversion Chart

Bar (bar)PSI (psi)
0.11.45038
0.253.62595
0.57.2519
114.5038
229.0076
343.5114
572.519
10145.038
20290.076
25362.595
50725.19
1001450.38
2503625.95
100014503.8

Understanding the Units

What is a Bar?

One bar equals exactly 100,000 pascals, very close to standard atmospheric pressure at sea level (about 1.01325 bar).

Common contexts: meteorology, industrial pressure.

What is a PSI?

One pound-force per square inch (psi) equals approximately 6,894.757 pascals.

Common contexts: tire pressure, plumbing, pneumatic systems (US).

Real-World Reference Points

Item Bar (bar) PSI (psi)
Car tire (typical)2.206332
US household water3.447450
Bicycle road tire6.8947100

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FAQ

How many PSI is 1 bar?

One bar equals approximately 14.5038 PSI. This conversion is frequently needed when switching between metric and imperial pressure gauges.

Why do European and American tire gauges show different numbers?

European gauges typically display pressure in bar, while American gauges use PSI. A tire rated at 2.3 bar in Europe reads about 33.4 PSI on an American gauge. The actual pressure is identical.

What bar pressure equals 100 PSI?

Approximately 6.895 bar equals 100 PSI. To convert PSI to bar, divide by 14.5038.

Is bar or PSI more precise for industrial applications?

Both units can express any precision needed. Bar is standard in most international engineering and manufacturing. PSI dominates in US-based industries like oil and gas, HVAC, and automotive in North America.

How many psi are in 1 bar?

1 bar equals 14.5038 psi.

How do you convert bar to psi?

Multiply the bar value by 14.5038. Formula: psi = bar × 14.5038.

How many psi are in 5 bar?

5 bar = 72.519 psi.

How do you convert psi back to bar?

Use the inverse formula: bar = psi ÷ 14.5038. For example, 1 psi = 0.068947 bar.

What is the difference between Bar and PSI?

One bar equals exactly 100,000 pascals, very close to standard atmospheric pressure at sea level (about 1.01325 bar). One pound-force per square inch (psi) equals approximately 6,894.757 pascals.