Hectopascals to Torr Converter
Enter the pressure in hectopascals below to convert it to torr.
Convert Hectopascals to Torr
Enter a value in hectopascals (hPa) to convert to torr (Torr).
Hectopascal to Torr Conversion Table
Table showing various hectopascal measurements converted to torr. Click any preset value or arrow to load it into the converter.
| Hectopascals (hPa) | Torr (Torr) |
|---|---|
| 1 hPa | 0.7500617 Torr |
| 2 hPa | 1.5001234 Torr |
| 2.5 hPa | 1.8751542 Torr |
| 5 hPa | 3.7503084 Torr |
| 10 hPa | 7.5006168 Torr |
| 15 hPa | 11.2509252 Torr |
| 20 hPa | 15.0012337 Torr |
| 25 hPa | 18.7515421 Torr |
| 30 hPa | 22.5018505 Torr |
| 50 hPa | 37.5030841 Torr |
How to Convert Hectopascals to Torr
To convert hectopascals to torr, multiply the pressure by the following conversion ratio: 0.7500617 torr/hectopascal.
Since one hectopascal is equal to 0.7500617 torr, you can use this simple formula to convert:
The pressure in torr is equal to the pressure in hectopascals multiplied by 0.7500617.
For example, here's how to convert 5 hectopascals to torr using the formula above.
How Many Torr Are in a Hectopascal?
There are 0.7500617 torr in a hectopascal, which is why we use this value in the formula above.
Our hectopascal to torr calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Hectopascals and torr are both units used to measure pressure. Keep reading to learn more about each unit.
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). [1]
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.
What Is a Torr?
A torr is a unit of pressure equal to 133.3223684 pascals (Pa), the base unit for pressure. 1/760 of a standard atmosphere (133.3224 Pascals). [2]
The torr is classified as a standard unit of pressure. Torr can be abbreviated as Torr; for example, 1 torr can be written as 1 Torr.
When working with torr (Torr) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, torr (Torr) are widely used across standard pressure applications within international standard workflows, engineering documentation, and technical data sheets.
When converting pressure between hectopascals (hPa) and torr (Torr), keep full floating-point precision (1 hPa = 0.7500617 Torr; 1 Torr = 1.3332237 hPa) during intermediate calculations and round only the final torr figure to match your instrument tolerance.
More Hectopascal & Torr Conversions
Need to calculate in the opposite direction? Use our torr to hectopascals calculator to switch your starting unit immediately. You can also explore related tools such as converting torr to hectopascals, converting hectopascals to pascals, or converting hectopascals to inches of mercury.
Convert from Hectopascals
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Hectopascals (hPa) to Torr (Torr)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Hectopascal (hPa) & Torr (mmHg) (Torr)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (hPa to Torr)