Convert bars to psi

1 bar=14.5038psi

Use the converter below to change any bars value into psi instantly — with formula, conversion table, and real-world examples.

You have

Equals

14.50377

Conversion formula

Forward

psi = bars × 14.5038

Reverse

bars = psi × 0.06895

Example: 10 bar × 14.5038 = 145.038 psi.

About both units

From

Bar

bar

The bar equals 100,000 pascals — slightly less than one atmosphere (1.01325 bar). It is a convenient unit for everyday pressures: tyre pressures, diving depth, weather fronts. Common in European engineering.

Real-world: Car tyre: 2.0–2.5 bar. SCUBA at 10 m depth: 2 bar absolute. Fire hose: 5–7 bar.

Read full bar reference →

Pound per Square Inch

psi

Pounds per square inch equals approximately 6895 Pa. It is the dominant pressure unit in the US — tyre pressures, plumbing, compressed air. Standard US tyre pressure: 32–35 psi.

Real-world: US tyre: 32–35 psi. Water supply: 40–60 psi. SCUBA tank: 3000 psi. Car AC system: 30–200 psi.

Read full pound per square inch reference →

Bar to Pound per Square Inch conversion table

Common bars to psi values for quick reference.

Bar (bar)	Pound per Square Inch (psi)
1 bar	14.5038 psi
5 bar	72.5189 psi
10 bar	145.038 psi
25 bar	362.594 psi
50 bar	725.189 psi
100 bar	1,450.38 psi
200 bar	2,900.75 psi
500 bar	7,251.89 psi
1,000 bar	14,503.77 psi
5,000 bar	72,518.87 psi

Tips & common mistakes

Quick tips

1 bar = 100 kPa = 0.987 atm = 14.5 psi.
Almost 1 atm — convenient approximation.
Tyre pressures: 2.0–2.5 bar typical car, 6–10 bar truck.

Avoid these

Assuming 1 bar = 1 atm exactly — 1.3% off.
Mixing bar with psi — need factor of 14.5.
Using bar for high-pressure work — switch to MPa.

Frequently asked questions

How many psi in a bar?

One bar equals 14.5038 psi.

How do I convert bars to psi?

Multiply the bar value by 14.5038 to get the equivalent in psi.

What is 100 bars in psi?

100 bars equals 1,450.38 psi.

Is a bar bigger than a pound per square inch?

Yes. 1 bar equals 14.5038 psi, so one bar is larger.

How to convert bars to psi without a calculator?

Multiply by 14.5 for a quick estimate; use a calculator for precise results.

Related pressure conversions

📊 See full comparison matrix →

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Convert bars to psi

🧮 Conversion formula