Pressure Converter

Convert between common and industrial pressure units.

Pressure
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Common Benchmarks

Espresso machine 9 bar
Car tire 32 psi
Bicycle tire 80 psi
Mountain air 70 kPa
Natural gas line 0.25 psi
Soccer ball 12 psi

Formula

atm = bar × 0.9869232667

Example

Example: convert 100 bar to atmospheres.

100 bar = 98.69232667 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: 100 bar → 98.69232667 atm

Frequently Asked Questions

How much is 100 bar in atmospheres?

100 bar is about 98.6923 atmospheres.

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.