Pressure Converter

Convert between common and industrial pressure units.

Pressure
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Common Benchmarks

Blood pressure systolic 120 mmHg
Storm center 950 hPa
Natural gas line 0.25 psi
Atmospheric pressure 101.325 kPa
Hydraulic system 2000 psi
Scuba tank 3000 psi

Formula

bar = atm × 1.01325

Example

Example: convert 120 atmospheres to bar.

120 atm = 121.59 bar

Conversion table

atmospheres (atm) bar (bar)
1 atm 1.01325 bar
2 atm 2.0265 bar
5 atm 5.06625 bar
10 atm 10.1325 bar
20 atm 20.265 bar
50 atm 50.6625 bar
100 atm 101.325 bar

Explanation

These are both units.

How to convert atmospheres to bar

  1. Start with the value in atmospheres (atm).
  2. Multiply it by 1.01325.
  3. The result is the measurement in bar (bar).

Example: 120 atm → 121.59 bar

Frequently Asked Questions

How much is 120 atmospheres in bar?

120 atmospheres equals 121.59 bar.

How many bar is 1 atmosphere?

1 atmosphere equals 1.01325 bar.

How many atmospheres is 1 bar?

1 bar is about 0.986923 atmospheres.

What is the difference between atmospheres and bar?

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

Where are atmospheres and bar used?

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

Why does 1 atmosphere equal 1.01325 bar?

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