Millipascal is 0.001 pascal units.
Millipascals to Hectopascals Converter — mPa to hPa
Convert Millipascal (mPa) to Hectopascal (hPa) using the exact conversion factor (1 millipascal = 0.00001 hectopascal). See the formula, worked examples, and conversion table.
Millipascals to Hectopascals converter
Converter
Pressure Converter
Convert pascals, bars, PSI, atmospheres, mercury columns, water columns, and engineering pressure units.
Context values
Some unit families need one extra value for a physically accurate result.
Hectopascal is 100 pascal units.
Result = input x 0.001 / 100.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Millipascals to Hectopascals
Millipascal and Hectopascal both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: Millipascal is 0.001 pascal units, and hectopascal is 100 pascal units.
Formula
hectopascals = millipascals × 0.00001
This factor comes from each unit's defined relationship to the category's base unit: 1 millipascal equals 0.001 base units, and 1 hectopascal equals 100 base units, so dividing one by the other gives the direct millipascal-to-hectopascal factor of 0.00001.
Simple example
1 mPa × 0.00001 = 0.00001 hPa
1 millipascal = 0.00001 hectopascals.
Real-world example
35 mPa × 0.00001 = 0.00035 hPa
35 millipascals = 0.00035 hectopascals.
Conversion table
| Millipascal (mPa) | Hectopascal (hPa) |
|---|---|
| 1 mPa | 0.00001 hPa |
| 5 mPa | 0.00005 hPa |
| 10 mPa | 0.0001 hPa |
| 25 mPa | 0.00025 hPa |
| 50 mPa | 0.0005 hPa |
| 100 mPa | 0.001 hPa |
Reverse conversion: Hectopascal to Millipascal
0.00001 hPa × 100000 = 1 mPa
0.00001 hectopascals = 1 millipascal.
millipascals = hectopascals × 100000
For a page dedicated to this direction, see Hectopascal to Millipascal.
Understanding the Millipascal (mPa)
Millipascal is 0.001 pascal units.
Understanding the Hectopascal (hPa)
Hectopascal is 100 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many hectopascals are in 1 millipascal?
1 millipascal equals 0.00001 hectopascals, using the exact defined conversion factor rather than an estimate.
How do I convert millipascal to hectopascal?
Multiply the millipascal value by 0.00001. The converter above does this instantly to whatever precision you set.
How do I convert hectopascal back to millipascal?
Use the reverse factor: 1 hectopascal equals 100,000 millipascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a millipascal?
Millipascal (mPa) is a unit of pressure.
What is a hectopascal?
Hectopascal (hPa) is a unit of pressure.
Is the millipascal to hectopascal conversion exact?
Yes. Both millipascal and hectopascal are defined by fixed standards rather than physical artifacts, so the factor of 0.00001 used above is exact to as many digits as you choose to display.