Atmosphere (tech) to Bar Converter

Pressure Converter

29 units available

Decimals:

From

To

0.980665

1 at = 0.980665 bar

Formula:

bar = at × 0.980665

With your value: 1 at = 0.980665 bar

Other Atmosphere (tech) to Bar conversions

2 at to bar 3 at to bar 4 at to bar 5 at to bar 6 at to bar 7 at to bar 8 at to bar

Atmosphere (tech) to Bar Conversion Table

Atmosphere (tech) (at)	Bar (bar)
0.5	0.490333
1	0.980665
2	1.96133
5	4.903325
10	9.80665
15	14.709975
20	19.6133
25	24.516625
50	49.03325
100	98.0665
250	245.16625
500	490.3325
1000	980.665

Bar to Atmosphere (tech) Conversion Table

Bar (bar)	Atmosphere (tech) (at)
0.5	0.509858
1	1.019716
2	2.039432
5	5.098581
10	10.197162
15	15.295743
20	20.394324
25	25.492905
50	50.985811
100	101.971621
250	254.929053
500	509.858106
1000	1,019.716213

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Atmosphere (tech) (at)

Pressure

Exact conversion

Derived from the pascal (1 Pa = 1 N/m²). The standard atmosphere is exactly 101 325 Pa.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Bar (bar)

Pressure

Exact conversion

1 bar = 100 000 Pa exactly.

Source: Units accepted for use with the SI, SI Brochure Table 8

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Atmosphere (tech) to Bar

To convert from Atmosphere (tech) (at) to Bar (bar), multiply the value by 0.980665.

Formula: bar = at × 0.980665

Reverse: at = bar × 1.019716213

Step-by-Step Example

Start with your value in Atmosphere (tech). For example: 5 at
Multiply by the conversion factor: 5 x 0.980665
The result is: 4.903325 bar

About Atmosphere (tech)

The atmosphere (tech) (at) is a unit of pressure and stress. One atmosphere (tech) equals 98066.5 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: pressure calculations, engineering and science, education.

About Bar

The bar is a metric unit of pressure equal to 100,000 Pascals, roughly equal to atmospheric pressure at sea level.

Common uses: tire pressure, industrial, meteorology.

Frequently Asked Questions

How many Bar are in 1 Atmosphere (tech)?

There are exactly 0.980665 Bar in 1 Atmosphere (tech). This means the conversion factor from Atmosphere (tech) to Bar is 0.980665.

What is the formula to convert Atmosphere (tech) to Bar?

The formula to convert Atmosphere (tech) to Bar is: bar = at × 0.980665. For example, to convert 10 Atmosphere (tech) to Bar, you would multiply 10 by 0.980665.

What is a Atmosphere (tech)?