Standard atmospheres to Megapascals – standard atmosphere to megapascal Converter

1 atm = 0.101325 MPa

standard atmospheres (atm)

megapascals (MPa)0.101325

Formula

MPa = atm × 0.101325

Standard atmospheres to megapascals conversion table

standard atmospheres (atm)	megapascals (MPa)
0.25 atm	0.0253312 MPa
0.5 atm	0.0506625 MPa
1 atm	0.101325 MPa
2 atm	0.20265 MPa
5 atm	0.506625 MPa
10 atm	1.01325 MPa
20 atm	2.0265 MPa
50 atm	5.06625 MPa
100 atm	10.1325 MPa
200 atm	20.265 MPa
500 atm	50.6625 MPa
1000 atm	101.325 MPa
2500 atm	253.313 MPa
5000 atm	506.625 MPa
10000 atm	1013.25 MPa

Standard atmospheres and megapascals are both pressure units. One standard atmosphere equals 0.101325 megapascals; enter any value above for an instant result, or use the table for common conversions.

Sanity-check examples

1 atm = 0.101325 MPa
10 atm = 1.01325 MPa
2.5 atm = 0.253312 MPa

Common pitfalls and look-alike units

One standard atmosphere is exactly 101325 Pa while 1 bar is 100000 Pa — about 1.3% apart, so do not mix them. Tire pressures are often quoted in psi or bar (1 bar ≈ 14.5 psi, 1 psi ≈ 6.895 kPa); millimeter of mercury uses the conventional value 1 mmHg = 133.322387415 Pa.

Frequently asked questions

How many megapascals are in a standard atmosphere?

1 standard atmosphere (atm) equals 0.101325 megapascal (MPa).

How do I convert standard atmospheres to megapascals?

Multiply the standard atmosphere value by 0.101325 to get megapascal — for example, 2 standard atmospheres = 0.20265 megapascal.

How do I convert megapascals back to standard atmospheres?

1 megapascal is approximately 9.86923 standard atmosphere. Use the swap button or the reverse conversion page linked on this page.

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