Millibar to Atmosphere (tech) Converter

Pressure Converter

29 units available

Decimals:

From

To

0.00102

1 mbar = 0.00102 at

Formula:

at = mbar × 0.0010197162

With your value: 1 mbar = 0.00101972 at

Other Millibar to Atmosphere (tech) conversions

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

Millibar to Atmosphere (tech) Conversion Table

Millibar (mbar)	Atmosphere (tech) (at)
0.5	0.00051
1	0.00102
2	0.002039
5	0.005099
10	0.010197
15	0.015296
20	0.020394
25	0.025493
50	0.050986
100	0.101972
250	0.254929
500	0.509858
1000	1.019716

Atmosphere (tech) to Millibar Conversion Table

Atmosphere (tech) (at)	Millibar (mbar)
0.5	490.3325
1	980.665
2	1,961.33
5	4,903.325
10	9,806.65
15	14,709.975
20	19,613.3
25	24,516.625
50	49,033.25
100	98,066.5
250	245,166.25
500	490,332.5
1000	980,665

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.

Millibar (mbar)

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

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

How to Convert Millibar to Atmosphere (tech)

To convert from Millibar (mbar) to Atmosphere (tech) (at), multiply the value by 0.0010197162.

Formula: at = mbar × 0.0010197162

Reverse: mbar = at × 980.665

Step-by-Step Example

Start with your value in Millibar. For example: 5 mbar
Multiply by the conversion factor: 5 x 0.0010197162
The result is: 0.005099 at

About Millibar

The millibar (mbar) is a unit of pressure and stress. One millibar equals 100 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 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.

Frequently Asked Questions

How many Atmosphere (tech) are in 1 Millibar?

There are exactly 0.0010197162 Atmosphere (tech) in 1 Millibar. This means the conversion factor from Millibar to Atmosphere (tech) is 0.0010197162.

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

The formula to convert Millibar to Atmosphere (tech) is: at = mbar × 0.0010197162. For example, to convert 10 Millibar to Atmosphere (tech), you would multiply 10 by 0.0010197162.

What is a Millibar?