Pressure Converter

Convert between common and industrial pressure units.

Pressure
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Common Benchmarks

Storm center 950 hPa
Natural gas line 0.25 psi
Espresso machine 9 bar
Car tire 32 psi
Blood pressure systolic 120 mmHg
Atmospheric pressure 101.325 kPa

Formula

atm = bar × 0.9869232667

Example

Example: convert 1 bar to atmospheres.

1 bar = 0.98692327 atm

Conversion table

bar (bar) atmospheres (atm)
1 bar 0.98692327 atm
2 bar 1.97384653 atm
5 bar 4.93461633 atm
10 bar 9.86923267 atm
20 bar 19.73846533 atm
50 bar 49.34616334 atm
100 bar 98.69232667 atm

Explanation

These are both units.

How to convert bar to atmospheres

  1. Start with the value in bar (bar).
  2. Multiply it by 0.9869232667.
  3. The result is the measurement in atmospheres (atm).

Example: 1 bar → 0.98692327 atm

Frequently Asked Questions

How many atmospheres is 1 bar?

1 bar is about 0.986923 atmospheres.

How many bar is 1 atmosphere?

1 atmosphere equals 1.01325 bar.

What is the difference between bar and atmospheres?

Both measure pressure, but they are commonly used in different contexts. Bar are commonly used in industry and some technical contexts. Atmospheres are used as a reference for standard atmospheric pressure.

Where are bar and atmospheres used?

In practice: Bar are commonly used in industry and some technical contexts. Atmospheres are used as a reference for standard atmospheric pressure.

Why does 1 bar equal 0.986923 atmospheres?

Because pressure units are defined with a fixed relationship (often relative to the pascal). To convert, multiply by that factor.

How do you convert bar to atmospheres?

Multiply the value in bar by about 0.986923 to get atmospheres.