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Convert Pascals to Megapascals

Instantly convert Pascals (Pa) to Megapascals (MPa) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: Pa to MPamultiply by 1.0000e-6

Reference Table

Pascals (Pa)Megapascals (MPa)
10.000001
50.000005
100.00001
250.000025
500.00005
1000.0001

How to Convert Pascals to Megapascals

Formula

To convert Pascals (Pa) to Megapascals (MPa): multiply by 1.0000e-6

Step-by-Step

  1. Start with your value in Pascals (Pa).
  2. Multiply by 1.0000e-6 to perform the conversion.
  3. The result is your value expressed in Megapascals (MPa).

Conversion Factor

1 Pa = 0.000001 MPa

Reverse Factor

1 MPa = 1000000 Pa

Worked Example

Convert 25 Pascals to Megapascals: 25 Pa = 0.000025 MPa

About Pascal (Pa)

The SI derived unit of pressure (and stress), formally defined as one newton per square meter (N/m²) by ISO 80000-4. Named for 17th-century French mathematician Blaise Pascal, whose 1647-48 Puy-de-Dôme experiment established that atmospheric pressure decreases with altitude. The pascal is a small unit — standard sea-level atmospheric pressure is exactly 101,325 Pa per the BIPM SI Brochure — so working engineering and meteorology use multiples: kilopascals (kPa) for everyday gauge pressures, megapascals (MPa) for material strength, hectopascals (hPa) for barometric readings (1 kPa = 10 hPa). The pascal is the universal SI reference for pressure across scientific publication (Physical Review, J. Fluid Mechanics), thermodynamic state tables (NIST REFPROP), and international engineering codes (ASME, EN, JIS). Converting Pa to psi is a divide-by-6894.76; Pa to bar is divide-by-100,000.

About Megapascal (MPa)

A metric unit of pressure equal to exactly 1,000,000 pascals (1,000 kPa), or 10 bar. Megapascals are the universal SI unit for material strength reporting in structural and mechanical engineering: concrete compressive strength (typically 20-60 MPa per ACI 318 / Eurocode 2, with ultra-high-performance concrete reaching 150-200 MPa), structural-steel yield stress (250 MPa for S275 / A36, 355 MPa for S355, up to 690 MPa for HSLA grades), aluminum tensile (6061-T6 ~310 MPa), and the fracture toughness of ceramics and polymers reported as MPa·m^½ in materials databases. Mechanical-engineering finite-element solvers (Abaqus, ANSYS, Nastran), pressure-vessel codes (ASME BPVC Section VIII, PD 5500, EN 13445), hydraulic system specifications above ~70 bar, and the civil-engineering concrete mix specs all use MPa as the working pressure/stress unit. Common conversions: 1 MPa = 10 bar = 145.04 psi = 9.869 atm.

Quick Facts

  • 1 Pascal equals 0.000001 Megapascals
  • 1 Megapascal equals 1000000 Pascals
  • Pascal is a unit of pressure
  • Megapascal is a unit of pressure
  • This conversion is commonly used in tire inflation, weather reporting, scuba diving, and engineering
  • The Pascal belongs to the metric system

Common Pascal to Megapascal Conversions

Pascals (Pa)Megapascals (MPa)
0.11.000000e-7
0.55.000000e-7
10.000001
20.000002
50.000005
100.00001
14.6960.000014696
150.000015
200.00002
250.000025
500.00005
1000.0001
1500.00015
2000.0002
5000.0005
10000.001

Understanding Pascals

The Pascal (symbol: Pa) is a unit of pressure. The SI derived unit of pressure (and stress), formally defined as one newton per square meter (N/m²) by ISO 80000-4. Named for 17th-century French mathematician Blaise Pascal, whose 1647-48 Puy-de-Dôme experiment established that atmospheric pressure decreases with altitude. The pascal is a small unit — standard sea-level atmospheric pressure is exactly 101,325 Pa per the BIPM SI Brochure — so working engineering and meteorology use multiples: kilopascals (kPa) for everyday gauge pressures, megapascals (MPa) for material strength, hectopascals (hPa) for barometric readings (1 kPa = 10 hPa). The pascal is the universal SI reference for pressure across scientific publication (Physical Review, J. Fluid Mechanics), thermodynamic state tables (NIST REFPROP), and international engineering codes (ASME, EN, JIS). Converting Pa to psi is a divide-by-6894.76; Pa to bar is divide-by-100,000.

It belongs to the metric measurement system.

Pascals are commonly used in tire inflation, weather reporting, scuba diving, and engineering.

Understanding Megapascals

The Megapascal (symbol: MPa) is a unit of pressure. A metric unit of pressure equal to exactly 1,000,000 pascals (1,000 kPa), or 10 bar. Megapascals are the universal SI unit for material strength reporting in structural and mechanical engineering: concrete compressive strength (typically 20-60 MPa per ACI 318 / Eurocode 2, with ultra-high-performance concrete reaching 150-200 MPa), structural-steel yield stress (250 MPa for S275 / A36, 355 MPa for S355, up to 690 MPa for HSLA grades), aluminum tensile (6061-T6 ~310 MPa), and the fracture toughness of ceramics and polymers reported as MPa·m^½ in materials databases. Mechanical-engineering finite-element solvers (Abaqus, ANSYS, Nastran), pressure-vessel codes (ASME BPVC Section VIII, PD 5500, EN 13445), hydraulic system specifications above ~70 bar, and the civil-engineering concrete mix specs all use MPa as the working pressure/stress unit. Common conversions: 1 MPa = 10 bar = 145.04 psi = 9.869 atm.

It belongs to the metric measurement system.

Megapascals are commonly used in tire inflation, weather reporting, scuba diving, and engineering.

Why Convert Pascals to Megapascals?

Engineers, mechanics, and scientists frequently need to convert pressure between Pascals and Megapascals when working with different measurement standards. Tire pressure, blood pressure readings, weather barometric measurements, and industrial process specifications may all use different pressure units depending on the region or discipline. Reliable conversion prevents equipment misuse and ensures safety.

Frequently Asked Questions

How do I convert Pascals to Megapascals?

The SI derived unit of pressure (and stress), formally defined as one newton per square meter (N/m²) by ISO 80000-4. To convert Pascals to Megapascals, multiply by 1.0000e-6. For example, 25 Pa equals 0.000025 MPa.

How many Megapascals are in 1 Pascal?

There are 0.000001 Megapascals in 1 Pascal.

How many Pascals are in 1 Megapascal?

There are 1000000 Pascals in 1 Megapascal.

What is the formula for Pascal to Megapascal conversion?

The formula is: multiply by 1.0000e-6. This means 1 Pa = 0.000001 MPa.

Is a Pascal bigger than a Megapascal?

Yes. One Pascal is larger than one Megapascal because 1 Pa equals 0.000001 MPa, which is less than 1.

When do you need to convert between Pascals and Megapascals?

A metric unit of pressure equal to exactly 1,000,000 pascals (1,000 kPa), or 10 bar. Pascal and Megapascal are both pressure units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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