Hectopascals to Torr (hPa → Torr)
Formula
1 hPa = 0.7500637554192107 TorrConversion Table
| hPa | Torr |
|---|---|
| 0 | 0 |
| 1.0000 | 0.75006 |
| 2.0000 | 1.5001 |
| 3.0000 | 2.2502 |
| 4.0000 | 3.0003 |
| 5.0000 | 3.7503 |
| 6.0000 | 4.5004 |
| 7.0000 | 5.2504 |
| 8.0000 | 6.0005 |
| 9.0000 | 6.7506 |
| 10.000 | 7.5006 |
| 11.000 | 8.2507 |
| 12.000 | 9.0008 |
| 13.000 | 9.7508 |
| 14.000 | 10.501 |
| 15.000 | 11.251 |
| 16.000 | 12.001 |
| 17.000 | 12.751 |
| 18.000 | 13.501 |
| 19.000 | 14.251 |
| hPa | Torr |
|---|---|
| 20.000 | 15.001 |
| 21.000 | 15.751 |
| 22.000 | 16.501 |
| 23.000 | 17.251 |
| 24.000 | 18.002 |
| 25.000 | 18.752 |
| 26.000 | 19.502 |
| 27.000 | 20.252 |
| 28.000 | 21.002 |
| 29.000 | 21.752 |
| 30.000 | 22.502 |
| 31.000 | 23.252 |
| 32.000 | 24.002 |
| 33.000 | 24.752 |
| 34.000 | 25.502 |
| 35.000 | 26.252 |
| 36.000 | 27.002 |
| 37.000 | 27.752 |
| 38.000 | 28.502 |
| 39.000 | 29.252 |
| hPa | Torr |
|---|---|
| 40.000 | 30.003 |
| 41.000 | 30.753 |
| 42.000 | 31.503 |
| 43.000 | 32.253 |
| 44.000 | 33.003 |
| 45.000 | 33.753 |
| 46.000 | 34.503 |
| 47.000 | 35.253 |
| 48.000 | 36.003 |
| 49.000 | 36.753 |
| 50.000 | 37.503 |
| 51.000 | 38.253 |
| 52.000 | 39.003 |
| 53.000 | 39.753 |
| 54.000 | 40.503 |
| 55.000 | 41.254 |
| 56.000 | 42.004 |
| 57.000 | 42.754 |
| 58.000 | 43.504 |
| 59.000 | 44.254 |
| hPa | Torr |
|---|---|
| 60.000 | 45.004 |
| 61.000 | 45.754 |
| 62.000 | 46.504 |
| 63.000 | 47.254 |
| 64.000 | 48.004 |
| 65.000 | 48.754 |
| 66.000 | 49.504 |
| 67.000 | 50.254 |
| 68.000 | 51.004 |
| 69.000 | 51.754 |
| 70.000 | 52.504 |
| 71.000 | 53.255 |
| 72.000 | 54.005 |
| 73.000 | 54.755 |
| 74.000 | 55.505 |
| 75.000 | 56.255 |
| 76.000 | 57.005 |
| 77.000 | 57.755 |
| 78.000 | 58.505 |
| 79.000 | 59.255 |
Hectopascals to Torr Conversion
Converting Hectopascals (hPa) to Torr (Torr) is a common pressure conversion. 1 hPa equals 0.750064 Torr. For example, 100 hPa is equal to 75.006376 Torr.
Quick Mental Math: Hectopascals to Torr
Pressure units (atm, bar, psi, pascal) are diverse; use atmospheres as a reference tier.
Why is converting Hectopascals to Torr tricky?
Magnitude or direction confusion between hectopascals and torr is the primary error source.
Quick Reference Values
1 hPa = 0.750064 Torr. 5 hPa = 3.750319 Torr. 10 hPa = 7.500638 Torr. 25 hPa = 18.751594 Torr. 50 hPa = 37.503188 Torr. 100 hPa = 75.006376 Torr.
What is Hectopascals?
Hectopascals (hPa) is a unit of pressure. The hectopascal is a unit of pressure equal to 100 pascals. It is defined as exactly 100 newtons per square meter (100 N/m²), where the pascal (Pa) is the SI derived unit of pressure. The hectopascal is widely used in meteorology for atmospheric pressure measurements and aligns with the SI system as per international standards [bipm-si-brochure]. The pascal unit was named after Blaise Pascal and officially adopted by the General Conference on Weights and Measures (CGPM) in 1971. The hectopascal emerged as a convenient multiple used in meteorology to represent atmospheric pressure values in the 20th century [cgpm-resolutions]. Hectopascals are standard in weather reports worldwide, especially in Europe, Asia, and Australia. The US National Weather Service uses millibars, numerically equivalent to hectopascals, for atmospheric pressure. It is recognized by ISO 80000 as a unit of pressure [iso-80000].
What is Torr?
Torr (Torr) is a unit of pressure. The torr is a unit of pressure equal to exactly 1/760 of an atmosphere or 133.322 pascals (Pa). It approximates the pressure exerted by a 1-millimeter column of mercury at 0°C. The torr is widely used in vacuum physics and engineering for pressure measurements [nist-si-guide]. Named after Evangelista Torricelli, who invented the mercury barometer in 1643, the torr was formalized to provide a practical pressure unit close to the millimeter of mercury but with precise SI equivalence. It was standardized by scientific bodies in the 20th century [nist-si-guide]. The torr is used globally in laboratories and industries requiring vacuum measurements, such as semiconductor manufacturing. It is recognized by ISO and NIST as a pressure measurement unit alongside the pascal [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: hecto pascals, hecto-pascals, hecto pascal, hec topascal, tor, torrs, torr pressure. All of these refer to the Hectopascals to Torr conversion.