Convert atmosphere to megapascal
1 atm = 0.101325 MPa
sig figs
1 atm = 0.101 MPa
1 atm in every pressure unit
| microbar | 1,010,000 μbar |
| barye | 1,010,000 Ba |
| millitorr | 760,000 mTorr |
| pascal | 101,000 Pa |
| millimeter of water column | 10,300 mmH₂O |
| pound per square foot | 2,120 lb/ft² |
| centimeter of water column | 1,030 cmH₂O |
| hectopascal | 1,010 hPa |
| millibar | 1,010 mbar |
| torr | 760 Torr |
| millimeter of mercury | 760 mmHg |
| inch of water column | 407 in w.g. |
| kilopascal | 101 kPa |
| foot of water column | 33.9 ft H₂O |
| inch of mercury | 29.9 inHg |
| pound per square inch | 14.7 psi |
| meter of water column | 10.3 m H₂O |
| decibar | 10.1 dbar |
| kilogram-force per square centimeter | 1.03 kgf/cm² |
| bar | 1.01 bar |
| atmosphere | 1 atm |
| megapascal | 0.101 MPa |
| kip per square inch | 0.0147 ksi |
| gigapascal | 0.000101 GPa |
| million pounds per square inch | 0.0000147 Mpsi |
How the conversion works
Multiply by 0.101325 to go from atmosphere to megapascal, or divide by it to go back. Every conversion on this site routes through the SI value (Pa) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? megapascal to atmosphere: 1 MPa = 9.869232667 atm.
atmosphere to megapascal: common values
| 1 atm | 0.101325 MPa |
| 2 atm | 0.20265 MPa |
| 3 atm | 0.303975 MPa |
| 5 atm | 0.506625 MPa |
| 10 atm | 1.01325 MPa |
| 15 atm | 1.519875 MPa |
| 20 atm | 2.0265 MPa |
| 25 atm | 2.533125 MPa |
| 50 atm | 5.06625 MPa |
| 75 atm | 7.599375 MPa |
| 100 atm | 10.1325 MPa |
| 250 atm | 25.33125 MPa |
| 500 atm | 50.6625 MPa |
| 1000 atm | 101.325 MPa |