Convert standard atmospheres (atm) to millibars (mbar).
Edit either value. Decimals and scientific notation supported.
No units found. Try a name or symbol.
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1 atm ≈ 1013.25 mbar
Precision changes displayed rounding, not calculation accuracy.
mbar = atm × 1013.25mbar = atm × 1013.25
Multiply the atm reading by 1013.25.
1 atm ≈ 1013.25 mbar
1 × 1013.25 ≈ 1013.25
2 atm ≈ 2026.5 mbar
2 × 1013.25 ≈ 2026.5
No. Unit conversion preserves the original pressure reference. Converting a gauge reading to absolute pressure additionally requires the applicable atmospheric pressure.
Fixed reference · Standard atmosphere to Millibar
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
| Standard atmosphere (atm) | Millibar (mbar) |
|---|---|
| 0 | 0 |
| 0.1 | 101.325 |
| 0.5 | 506.625 |
| 1 | 1013.25 |
| 2 | 2026.5 |
| 5 | 5066.25 |
| 10 | 10132.5 |
| 25 | 25331.25 |
| 50 | 50662.5 |
| 100 | 101325 |
| 1000 | 1013250 |
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