Millipascals to Hectopascals Converter
Enter the pressure in millipascals below to convert it to hectopascals.
Convert Millipascals to Hectopascals
Enter a value in millipascals (mPa) to convert to hectopascals (hPa).
Millipascal to Hectopascal Conversion Table
Table showing various millipascal measurements converted to hectopascals. Click any preset value or arrow to load it into the converter.
| Millipascals (mPa) | Hectopascals (hPa) |
|---|---|
| 1 mPa | 0.00001 hPa |
| 10 mPa | 0.0001 hPa |
| 100 mPa | 0.001 hPa |
| 1,000 mPa | 0.01 hPa |
| 10,000 mPa | 0.1 hPa |
| 100,000 mPa | 1 hPa |
| 1,000,000 mPa | 10 hPa |
| 5,000,000 mPa | 50 hPa |
| 10,000,000 mPa | 100 hPa |
| 25,400,000 mPa | 254 hPa |
How to Convert Millipascals to Hectopascals
To convert millipascals to hectopascals, multiply the pressure by the following conversion ratio: 0.00001 hectopascals/millipascal.
Since one millipascal is equal to 0.00001 hectopascals, you can use this simple formula to convert:
The pressure in hectopascals is equal to the pressure in millipascals multiplied by 0.00001.
For example, here's how to convert 5 millipascals to hectopascals using the formula above.
How Many Hectopascals Are in a Millipascal?
There are 0.00001 hectopascals in a millipascal, which is why we use this value in the formula above.
Our millipascal to hectopascal calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Millipascals and hectopascals are both units used to measure pressure. Keep reading to learn more about each unit.
What Is a Millipascal?
A millipascal is a unit of pressure equal to 1/1,000 of a pascal (0.001 Pa). One-thousandth of a Pascal. [1]
The millipascal is classified as a metric and SI-compatible unit of pressure. Millipascals can be abbreviated as mPa; for example, 1 millipascal can be written as 1 mPa.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millipascal (mPa) a convenient decimal multiple of the pascal (Pa).
In practice, millipascals (mPa) are widely used across fine-tolerance laboratory, analytical, and micro-scale pressure measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Hectopascal?
A hectopascal is a unit of pressure equal to 100 pascals (Pa), the base unit for pressure. Equal to 100 Pascals (identical to 1 millibar). [2]
The hectopascal is classified as a metric and SI-compatible unit of pressure. Hectopascals can be abbreviated as hPa; for example, 1 hectopascal can be written as 1 hPa.
In the metric system, "hecto" is the standard SI prefix for hundreds, or 10². This makes the hectopascal (hPa) a convenient decimal multiple of the pascal (Pa).
In practice, hectopascals (hPa) are widely used across standard pressure applications within SI metric workflows, engineering documentation, and technical data sheets.
When converting pressure between millipascals (mPa) and hectopascals (hPa), keep full floating-point precision (1 mPa = 0.00001 hPa; 1 hPa = 100,000 mPa) during intermediate calculations and round only the final hectopascal figure to match your instrument tolerance.
More Millipascal & Hectopascal Conversions
Need to calculate in the opposite direction? Use our hectopascals to millipascals calculator to switch your starting unit immediately. You can also explore related tools such as converting hectopascals to millipascals, converting pascals to hectopascals, or converting inches of mercury to hectopascals.
Convert from Millipascals
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Millipascals (mPa) to Hectopascals (hPa)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Millipascal (mPa) & Hectopascal (hPa)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (mPa to hPa)