Convert Atmospheres (atm) to Megapascals (MPa)
Enter a value below to convert Atmospheres (atm) to Megapascals (MPa).
Conversion:
1 Atmospheres (atm) = 0.101325 Megapascals (MPa)
How to Convert Atmospheres (atm) to Megapascals (MPa)
1 atm = 0.101325 mpa
1 mpa = 9.8692326672 atm
Example: convert 15 Atmospheres (atm) to Megapascals (MPa):
25 atm = 2.533125 mpa
Atmospheres (atm) to Megapascals (MPa) Conversion Table
| Atmospheres (atm) | Megapascals (MPa) |
|---|---|
| 0.01 atm | 0.00101325 mpa |
| 0.1 atm | 0.0101325 mpa |
| 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 |
| 20 atm | 2.0265 mpa |
| 50 atm | 5.06625 mpa |
| 100 atm | 10.1325 mpa |
| 1000 atm | 101.325 mpa |
Atmospheres (atm)
Definition
A standard atmosphere (atm) is a unit of pressure defined as exactly 101,325 pascals. It represents the average atmospheric pressure at sea level.
History
The standard atmosphere was defined in 1954 as a reference standard for pressure. It was historically based on mercury barometer readings and the average weight of the Earth's atmosphere at sea level.
Current use
Atmospheres are used in chemistry (standard conditions for gas calculations), diving (dive depth pressure ratings), and as a reference point for comparing relative pressures across different systems.
Megapascals (MPa)
Definition
A megapascal (MPa) is a unit of pressure equal to 1,000,000 pascals or 1,000 kilopascals. It is used for expressing very high pressures.
History
The megapascal became the standard unit for material science and structural engineering as SI units spread globally. It replaced older units like kgf/cm² in many engineering specifications.
Current use
Megapascals are the standard unit for expressing tensile strength, yield strength, and compressive strength of materials. Concrete, steel, and composite material specifications use MPa worldwide.