Convert pressure units — pascal, PSI, bar, atmosphere, torr, mmHg and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 MPa | 0.00986923 atm | |
| 0.01 MPa | 0.0986923 atm | |
| 0.1 MPa | 0.986923 atm | |
| 1 MPa | 9.86923 atm | |
| 5 MPa | 49.3462 atm | |
| 10 MPa | 98.6923 atm | |
| 50 MPa | 493.462 atm | |
| 100 MPa | 986.923 atm | |
| 1000 MPa | 9869.23 atm |
Formula: Atmosphere = Megapascal × 9.869
Multiply any megapascal value by 9.869 to get atmosphere.
Reverse: Megapascal = Atmosphere × 0.1013
Common megapascal values — factor: 1 MPa = 9.869 atm
| Megapascal (MPa) | Atmosphere (atm) | Context |
|---|---|---|
| 0.0001 MPa | 0.0009869 atm | 1 kPa |
| 0.001 MPa | 0.009869 atm | 10 kPa |
| 0.01 MPa | 0.09869 atm | 0.1 bar |
| 0.1 MPa | 0.9869 atm | 1 bar |
| 0.1013 MPa | 1 atm | 1 atm |
| 1 MPa | 9.869 atm | 10 bar / hydraulics |
| 10 MPa | 98.69 atm | 100 bar |
| 100 MPa | 986.9 atm | 1,000 bar |
| 200 MPa | 1,974 atm | Scuba extreme |
| 400 MPa | 3,948 atm | Waterjet cutting |
| 600 MPa | 5,922 atm | Ultra-high pressure |
| 1,000 MPa | 9,869 atm | Diamond anvil low |
| 0.006895 MPa | 0.06805 atm | 1 psi |
| 0.000133 MPa | 0.001313 atm | 1 mmHg |
| 0.09807 MPa | 0.9679 atm | 1 kgf/cm² |
1 MPa = 9.869 atm. Memorize for instant estimates.
Use 9.869 as a quick mental multiplier.
Multiply result by 0.1013 to recover the original MPa value.
Specifies concrete compressive strength (20–50 MPa) and steel yield strength (250–550 MPa).
Measures tensile strength, hardness, and fracture toughness in MPa.
Designs high-pressure hydraulic systems (20–35 MPa) for heavy machinery.
Calculates rock strength and in-situ stress states in MPa.
Specifies wellbore pressure, reservoir pressure, and fracture gradients in MPa.
Sets cutting pressure (200–600 MPa) for precision cutting applications.
The megapascal (MPa) equals 1,000,000 pascals (1,000 kPa) and is the standard unit for high-pressure engineering applications including hydraulics, structural materials, and industrial processes.
Steel has a tensile strength of about 400–550 MPa; concrete compressive strength is typically 20–40 MPa. Hydraulic systems in heavy machinery operate at 20–35 MPa. Water jet cutting uses pressures up to 600 MPa.
Interesting fact: The deepest point in the ocean (Mariana Trench, ~11,000 m) has a pressure of about 110 MPa — over 1,000 times atmospheric pressure.
The atmosphere (atm) is defined as exactly 101,325 pascals — the approximate air pressure at sea level. It was originally defined as the average atmospheric pressure at sea level at 45° latitude, and has been a standard reference since the 17th century.
Atmospheres are used in chemistry (gas laws), scuba diving depth calculations (every 10 m of water ≈ 1 additional atm), and as a convenient reference for extreme pressure comparisons.
Interesting fact: Jupiter's atmosphere has pressures exceeding 1,000 atm at depth. Diamond formation in Earth's mantle requires pressures of 45,000–60,000 atm at depths of 150–200 km.
Converting megapascal to atmosphere is a common task in engineering, medicine, meteorology, and science. Different industries and countries use different pressure units — PSI in the US, bar in Europe, mmHg in medicine, and pascals in physics — making accurate conversion essential for cross-disciplinary work.
Quick reference: 5 MPa = 49.35 atm and 10 MPa = 98.69 atm. For the reverse: 1 atm = 0.1013 MPa. The exact factor is 1 MPa = 9.869 atm.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.