Formula
atm to MPa conversion formula
Use this relationship for a direct conversion:
MPa = atm x 0.101325
Worked example
2 atm = 0.20265 MPa.
Conventional mercury-column units are not measurements adjusted for local temperature or gravity.
Pressure conversion
Convert Standard atmosphere to Megapascal
1 standard atmosphere (atm) equals 0.101325 megapascal (MPa). Enter any value below to convert from atm to MPa.
Enter a value and choose units. Results update instantly.
1 atm = 0.101325 MPa
All Pressure units
From 1 atm| Unit | Value |
|---|---|
| Pascal Pa | 101,325 |
| Kilopascal kPa | 101.325 |
| Megapascal MPa | 0.101325 |
| Bar bar | 1.01325 |
| Millibar mbar | 1,013.25 |
| Standard atmosphere atm | 1 |
| Pound per square inch psi | 14.6959487755 |
| Torr Torr | 760 |
| Millimeter of mercury mmHg | 759.9998917256 |
| Inch of mercury inHg | 29.9212524019 |
Recent conversions
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Quick reference
Standard atmosphere to Megapascal table
| Standard atmosphere (atm) | Megapascal (MPa) |
|---|---|
| 0.01 | 0.00101325 |
| 0.1 | 0.0101325 |
| 1 | 0.101325 |
| 2 | 0.20265 |
| 5 | 0.506625 |
| 10 | 1.01325 |
| 25 | 2.533125 |
| 50 | 5.06625 |
| 100 | 10.1325 |
| 1,000 | 101.325 |
From unit
About the standard atmosphere
Exactly 101,325 pascals.
Symbol: atm
To unit
About the megapascal
One million pascals.
Symbol: MPa
Keep converting
Related conversions
Megapascal to Standard atmosphereReverse this conversion Standard atmosphere to Pascalatm to PaStandard atmosphere to Kilopascalatm to kPaStandard atmosphere to Baratm to barStandard atmosphere to Millibaratm to mbarStandard atmosphere to Pound per square inchatm to psiStandard atmosphere to Torratm to Torr
Source
Conversion standard
Definitions are checked against NIST SP 811: Pressure units. Calculations use full internal precision before display rounding.
View the complete pressure converterQuestions
atm to MPa FAQ
How do you convert standard atmosphere to megapascal?
Use the formula MPa = atm x 0.101325. 1 standard atmosphere (atm) equals 0.101325 megapascal (MPa).
Is the atm to MPa conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.