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Millibar to Standard atmosphere (mbar → atm)

Convert millibar to standard atmosphere instantly. The conversion factor below is exact by international definition.

Realtime·pressure·metric
Exact
mbar
× 0.001
atm
0.00098692
Precision [auto]
6

📐mbar to atm formulaExact

atm = mbar × 0.000986923267
Inverse: mbar = atm × 1013.25

Worked example: 1 mbar = 0.000986923267 atm

ℹ️About these units

Millibar (mbar)
Standard atmosphere (atm)
Source: 1 atm = 101 325 Pa exact (BIPM).

📊Reference table: mbar → atm

Millibar (mbar)Standard atmosphere (atm)
10.00098692
20.001974
50.004935
100.009869
150.014804
200.019738
250.024673
500.049346
1000.098692
2500.246731
5000.493462
7500.740192
1,0000.986923

Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.

🔁Reverse & related

Reverse: atm → mbarmbar → Pambar → kPambar → MPambar → hPambar → barmbar → psimbar → ksimbar → Torr

🔌API & widget

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