Megapascal (MPa)

The megapascal (MPa) equals one million pascals, which is the same as one newton per square millimetre (N/mm²).

Symbol: MPa

Quantity: pressure, stress and differential pressure (force per unit area)

SI relation: 1 MPa = 1000000 Pa (exact)

Derivation: 1 MPa = 10⁶ Pa = 1 N/mm²

Exact: yes, by definition

Typical uses

Concrete compressive strength (typically 20–50 MPa)
Steel yield strength (S235 = 235 MPa, S355 = 355 MPa)
Hydraulic system pressure (10–35 MPa)
Hydrogen and CNG storage (20–70 MPa)

Convert megapascals to other units

1 MPa in other pressure units
Conversion	1 MPa equals	Reverse
megapascal to pascal	1000000 Pa	pascal to megapascal
megapascal to kilopascal	1000 kPa	kilopascal to megapascal
megapascal to psi	145.0377377 psi	psi to megapascal
megapascal to bar	10 bar	bar to megapascal
megapascal to millimeter of mercury	7500.615758 mmHg	millimeter of mercury to megapascal
megapascal to inch of water	4014.63076 inH₂O	inch of water to megapascal
megapascal to atmosphere	9.869232667 atm	atmosphere to megapascal
megapascal to millibar	10000 mbar	millibar to megapascal
megapascal to torr	7500.616827 Torr	torr to megapascal
megapascal to millimeter of water	101971.6213 mmH₂O	millimeter of water to megapascal
megapascal to centimeter of water	10197.16213 cmH₂O	centimeter of water to megapascal
megapascal to inch of mercury	295.299833 inHg	inch of mercury to megapascal
megapascal to decibar	100 dbar	decibar to megapascal
megapascal to inch of water (60 °F)	4018.64652 inH₂O (60 °F)	inch of water (60 °F) to megapascal
megapascal to barye	10000000 Ba	barye to megapascal

Open the Pressure Converter to convert any value between all units.

Sources

The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.

Last reviewed: 2026-10-15. Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.

Cite this page

APA

Scientific Converters. (2026, October 15). Megapascal (MPa). Retrieved October 17, 2026, from https://scientificconverters.com/units/megapascal/

IEEE

Scientific Converters, "Megapascal (MPa)," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/units/megapascal/