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Convert Kilopascals to Megapascals

Instantly convert Kilopascals (kPa) to Megapascals (MPa) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: kPa to MPamultiply by 0.001

Reference Table

Kilopascals (kPa)Megapascals (MPa)
10.001
50.005
100.01
250.025
500.05
1000.1

How to Convert Kilopascals to Megapascals

Formula

To convert Kilopascals (kPa) to Megapascals (MPa): multiply by 0.001

Step-by-Step

  1. Start with your value in Kilopascals (kPa).
  2. Multiply by 0.001 to perform the conversion.
  3. The result is your value expressed in Megapascals (MPa).

Conversion Factor

1 kPa = 0.001 MPa

Reverse Factor

1 MPa = 1000 kPa

Worked Example

Convert 25 Kilopascals to Megapascals: 25 kPa = 0.025 MPa

About Kilopascal (kPa)

A metric unit of pressure equal to exactly 1,000 pascals (1 kPa = 1,000 N/m²). Kilopascals are the everyday SI pressure unit outside the US: passenger car tire pressure in Europe and Australia is specified in kPa (typically 220-250 kPa cold), building HVAC duct static pressure is in kPa, and the ISO 5198 / IEC 60534 valve standards quote rated pressures in kPa. Weather forecasters quote surface atmospheric pressure in hectopascals (1 kPa = 10 hPa); a typical sea-level barometric reading is 1013 hPa = 101.3 kPa. The kPa is the standard report unit in clinical respiratory physiology (PaCO₂, PaO₂ in some ICUs) and in scientific gauge pressure measurement. Common conversions: kPa to psi is divide by 6.895; kPa to bar is divide by 100; kPa to mmHg is multiply by 7.5006.

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 Kilopascal equals 0.001 Megapascals
  • 1 Megapascal equals 1000 Kilopascals
  • Kilopascal 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 Kilopascal belongs to the metric system

Common Kilopascal to Megapascal Conversions

Kilopascals (kPa)Megapascals (MPa)
0.10.0001
0.50.0005
10.001
20.002
50.005
100.01
14.6960.014696
150.015
200.02
250.025
500.05
1000.1
1500.15
2000.2
5000.5
10001

Understanding Kilopascals

The Kilopascal (symbol: kPa) is a unit of pressure. A metric unit of pressure equal to exactly 1,000 pascals (1 kPa = 1,000 N/m²). Kilopascals are the everyday SI pressure unit outside the US: passenger car tire pressure in Europe and Australia is specified in kPa (typically 220-250 kPa cold), building HVAC duct static pressure is in kPa, and the ISO 5198 / IEC 60534 valve standards quote rated pressures in kPa. Weather forecasters quote surface atmospheric pressure in hectopascals (1 kPa = 10 hPa); a typical sea-level barometric reading is 1013 hPa = 101.3 kPa. The kPa is the standard report unit in clinical respiratory physiology (PaCO₂, PaO₂ in some ICUs) and in scientific gauge pressure measurement. Common conversions: kPa to psi is divide by 6.895; kPa to bar is divide by 100; kPa to mmHg is multiply by 7.5006.

It belongs to the metric measurement system.

Kilopascals 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 Kilopascals to Megapascals?

Engineers, mechanics, and scientists frequently need to convert pressure between Kilopascals 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 Kilopascals to Megapascals?

A metric unit of pressure equal to exactly 1,000 pascals (1 kPa = 1,000 N/m²). To convert Kilopascals to Megapascals, multiply by 0.001. For example, 25 kPa equals 0.025 MPa.

How many Megapascals are in 1 Kilopascal?

There are 0.001 Megapascals in 1 Kilopascal.

How many Kilopascals are in 1 Megapascal?

There are 1000 Kilopascals in 1 Megapascal.

What is the formula for Kilopascal to Megapascal conversion?

The formula is: multiply by 0.001. This means 1 kPa = 0.001 MPa.

Is a Kilopascal bigger than a Megapascal?

Yes. One Kilopascal is larger than one Megapascal because 1 kPa equals 0.001 MPa, which is less than 1.

When do you need to convert between Kilopascals and Megapascals?

A metric unit of pressure equal to exactly 1,000,000 pascals (1,000 kPa), or 10 bar. Kilopascal 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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