Convert KPa to MPa

1 kPa equals 0.001 MPa.

Formula: MPa = kPa × 0.001

KPa to MPa Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How to Convert KPa to MPa

1 kPa = 0.001 MPa

MPa = KPa × 0.001

Example: 1 kPa × 0.001 = 0.001 MPa

Reverse Conversion

To convert MPa back to kPa:

  • Remember, 1 MPa equals 1000 kPa.
  • To convert 0.001 MPa to kPa, multiply 0.001 x 1000, resulting in 1 kPa.

Common KPa to MPa Conversions

KPa to MPa (Part 1)
KPa MPa Actions
1 kPa 0.001 MPa
5 kPa 0.005 MPa
10 kPa 0.01 MPa
25 kPa 0.025 MPa
KPa to MPa (Part 2)
KPa MPa Actions
50 kPa 0.05 MPa
100 kPa 0.1 MPa
500 kPa 12 MPa
1000 kPa 1 MPa

KPa to MPa Conversion Table

Reference table with common kpa to mpa conversions. All values calculated with high precision.

KPa to MPa Table
0.1 to 500

KPa MPa Actions
0.1 kPa 0.0001 MPa
14 kPa 0.00025 MPa
12 kPa 0.0005 MPa
1 kPa 0.001 MPa
2 12 kPa 0.0025 MPa
5 kPa 0.005 MPa
10 kPa 0.01 MPa
25 kPa 0.025 MPa
50 kPa 0.05 MPa
100 kPa 0.1 MPa
250 kPa 14 MPa
500 kPa 12 MPa

KPa to MPa Table
1000 to 1 × 108

KPa MPa Actions
1000 kPa 1 MPa
2500 kPa 2 12 MPa
5000 kPa 5 MPa
10000 kPa 10 MPa
25000 kPa 25 MPa
50000 kPa 50 MPa
100000 kPa 100 MPa
250000 kPa 250 MPa
500000 kPa 500 MPa
1000000 kPa 1000 MPa
2500000 kPa 2500 MPa
5000000 kPa 5000 MPa
10000000 kPa 10000 MPa
2.5 × 107 kPa 25000 MPa
5 × 107 kPa 50000 MPa
1 × 108 kPa 100000 MPa

MPa to KPa Table
0.0001 to 12

MPa KPa Actions
0.0001 MPa 0.1 kPa
0.00025 MPa 14 kPa
0.0005 MPa 12 kPa
0.001 MPa 1 kPa
0.0025 MPa 2 12 kPa
0.005 MPa 5 kPa
0.01 MPa 10 kPa
0.025 MPa 25 kPa
0.05 MPa 50 kPa
0.1 MPa 100 kPa
14 MPa 250 kPa
12 MPa 500 kPa

MPa to KPa Table
1 to 100000

MPa KPa Actions
1 MPa 1000 kPa
2 12 MPa 2500 kPa
5 MPa 5000 kPa
10 MPa 10000 kPa
25 MPa 25000 kPa
50 MPa 50000 kPa
100 MPa 100000 kPa
250 MPa 250000 kPa
500 MPa 500000 kPa
1000 MPa 1000000 kPa
2500 MPa 2500000 kPa
5000 MPa 5000000 kPa
10000 MPa 10000000 kPa
25000 MPa 2.5 × 107 kPa
50000 MPa 5 × 107 kPa
100000 MPa 1 × 108 kPa

Definition of KPa

Kilopascal: A Practical SI Pressure Unit

The kilopascal (kPa) is an SI-derived unit of pressure equal to 1,000 pascals. It provides a more practical scale than the pascal for many everyday and industrial applications. The kilopascal is commonly used for tire pressure specifications (especially outside North America), blood pressure measurements in some countries, and weather reports in metric countries.

Conversions to Other Units of Measurement:

  1. Pascal (Pa): 1 kilopascal equals exactly 1,000 pascals. This is the fundamental relationship. For example, atmospheric pressure (101.325 kPa) equals 101,325 Pa.
  2. Bar: 1 kilopascal equals exactly 0.01 bar. This simple conversion makes kPa convenient for calculations. For example, 250 kPa equals 2.5 bar.
  3. PSI: 1 kilopascal equals approximately 0.145038 psi. This conversion is important for automotive applications. For example, a tire specification of 220 kPa equals approximately 32 psi.
  4. Atmosphere (atm): 1 kilopascal equals approximately 0.00986923 atm. Standard atmospheric pressure equals 101.325 kPa.
  5. Millibar (mbar): 1 kilopascal equals exactly 10 millibar. This conversion is used in meteorology.

The kilopascal offers a good balance between the small pascal and larger units, making it ideal for many practical pressure measurements.

Definition
SI-derived pressure unit equal to 1,000 pascals (10³ Pa).
Exact factor
1 kPa = 1,000 Pa (exact);  1 kPa = 0.01 bar (exact)
Common equivalents
  • 1 kPa = 10 mbar (exact)
  • 1 kPa ≈ 0.145038 psi
  • 101.325 kPa = 1 atm (exact)
Sources

Definition of MPa

Megapascal: High-Pressure Applications

The megapascal (MPa) is an SI-derived unit of pressure equal to 1,000,000 pascals (1,000 kPa or 10 bar). It is commonly used in engineering and materials science for measuring high pressures, such as the tensile strength of materials, hydraulic system pressures, and geological pressures. The megapascal provides convenient numbers when dealing with pressures that would be unwieldy in pascals or kilopascals.

Conversions to Other Units of Measurement:

  1. Bar: 1 megapascal equals exactly 10 bar. This simple relationship makes MPa convenient for high-pressure industrial work. For example, 20 MPa equals 200 bar.
  2. PSI: 1 megapascal equals approximately 145.038 psi. This conversion is essential for engineering specifications. For example, a steel with 250 MPa yield strength equals approximately 36,260 psi.
  3. Kilopascal (kPa): 1 megapascal equals exactly 1,000 kPa. For example, 5 MPa equals 5,000 kPa.
  4. Pascal (Pa): 1 megapascal equals exactly 1,000,000 pascals. This is the fundamental SI relationship.
  5. Atmosphere (atm): 1 megapascal equals approximately 9.86923 atm. This shows that MPa represents significantly higher pressures than atmospheric.

The megapascal is essential in structural engineering, material science, and any application involving high pressures.

Definition
SI-derived pressure unit equal to 1,000,000 pascals (10⁶ Pa).
Exact factor
1 MPa = 1,000,000 Pa (exact);  1 MPa = 10 bar (exact)
Common equivalents
  • 1 MPa = 1,000 kPa (exact)
  • 1 MPa ≈ 145.038 psi
  • 1 MPa ≈ 9.86923 atm
Sources

About the KPa

Facts & Uses

  • 1 kPa = 1000 Pa exactly. The most practical metric unit for everyday pressures: tire pressure, blood pressure, weather, and engineering.
  • Standard for tire pressure in metric markets — typical car tire is 200-250 kPa (≈ 30-36 psi).
  • Blood pressure can be expressed in kPa: 16/10.7 kPa ≈ 120/80 mmHg (the international SI standard, though clinicians still prefer mmHg).
  • Weather: standard atmospheric pressure is 101.325 kPa; storm warnings often start below 100 kPa at sea level.

Curiosities

  • Kilopascals are preferred over hectopascals in engineering and tire-pressure contexts because the round numbers are more intuitive (250 kPa vs 2500 hPa).
  • The kilopascal replaced the kilogram-force per square centimeter (kgf/cm²) in most international standards after metrication in the 1970s-80s.
  • A 10 kPa pressure differential is roughly the suction force of a typical household vacuum cleaner.
  • Approximate equivalents: 100 kPa ≈ 14.5 psi ≈ 0.987 atm ≈ 750 mmHg.

Sources

About the MPa

Facts & Uses

  • 1 MPa = 1,000,000 Pa = 1 N/mm² exactly — the convenient unit for high pressures and material stresses.
  • Standard in materials science for tensile strength: structural steel ≈ 250 MPa yield, high-strength steel 400-700 MPa, carbon fiber 3500+ MPa.
  • Used in hydraulic systems (typical hydraulic pressures 10-35 MPa), injection molding, and industrial pressure vessels.
  • High-pressure applications: diamond anvil cells reach 100-300 GPa; deep ocean trenches around 100 MPa at the Mariana Trench.

Curiosities

  • Concrete compressive strength is typically expressed in MPa: 25 MPa for residential, 40+ MPa for high-rise buildings, 100+ MPa for ultra-high-performance concrete.
  • The Earth's pressure at the core-mantle boundary reaches about 136 GPa = 136,000 MPa — beyond what can be sustained at the surface in any container.
  • 1 MPa is approximately the pressure under a 1 cm column of mercury per square millimeter, or about 145 psi.
  • Approximate equivalents: 1 MPa = 145 psi = 9.87 atm = 10 bar.

Sources

Frequently Asked Questions

How many MPa are in one kPa?

One kPa equals 0.001 MPa. To convert, multiply the kPa value by 0.001. For the reverse, divide the MPa value by 0.001 (or multiply by 1000).

What is 10 kPa in MPa?

10 kPa = 0.01 MPa. This is one of the most commonly searched conversions for this pair.

Is the kPa-to-MPa conversion exact?

Yes. The factor 0.001 is exact by international definition, not an approximation. Any imprecision comes only from the original measurement, not the conversion.

Looking for the reverse? Convert MPa to KPa

Related Pressure Converters

Explore other pressure conversion tools:

Related in other categories:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 atm = 101 325 Pa by definition (BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.