Convert megapascals (MPa) to standard atmospheres (atm).
Pressure converter
Instant conversion
Edit either value. Decimals and scientific notation supported.
1
MPa
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PascalPa
KilopascalkPa
MegapascalMPa
Barbar
Millibarmbar
HectopascalhPa
Standard atmosphereatm
Pounds per square inchpsi
TorrTorr
Conventional millimetre of mercurymmHg
No units found. Try a name or symbol.
9.869232667
atm
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PascalPa
KilopascalkPa
MegapascalMPa
Barbar
Millibarmbar
HectopascalhPa
Standard atmosphereatm
Pounds per square inchpsi
TorrTorr
Conventional millimetre of mercurymmHg
No units found. Try a name or symbol.
CONVERSION
1 MPa ≈ 9.869232667 atm
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAatm = MPa × 9.86923266716013
FORMULA & EXAMPLES
How to convert Megapascals to standard atmospheres
atm = MPa × 9.86923266716013
Multiply the MPa reading by 9.86923266716013.
Worked examples
1 MPa ≈ 9.869232667 atm
1 × 9.86923266716013 ≈ 9.869232667
10 MPa ≈ 98.69232667 atm
10 × 9.86923266716013 ≈ 98.69232667
Frequently asked questions
Does MPa to atm change gauge pressure into absolute pressure?
No. Unit conversion preserves the original pressure reference. Converting a gauge reading to absolute pressure additionally requires the applicable atmospheric pressure.
Megapascals to standard atmospheres table
Fixed reference · Megapascal to Standard atmosphere
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Megapascal (MPa)
Standard atmosphere (atm)
0
0
0.1
0.9869232667
0.5
4.934616334
1
9.869232667
2
19.73846533
5
49.34616334
10
98.69232667
25
246.7308167
50
493.4616334
100
986.9232667
1000
9869.232667
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.