A torr is 1/760 standard atmosphere.
Torrs to Hectopascals Converter — Torr to hPa
Convert Torr (Torr) to Hectopascal (hPa) using the exact conversion factor (1 torr = 1.333223684 hectopascal). See the formula, worked examples, and conversion table.
Torrs to Hectopascals converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Hectopascal is 100 pascal units.
Result = input x 133.3223684 / 100.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Torrs to Hectopascals
Torr and Hectopascal both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: A torr is 1/760 standard atmosphere, and hectopascal is 100 pascal units.
Formula
hectopascals = torrs × 1.33322368421
This factor comes from each unit's defined relationship to the category's base unit: 1 torr equals 133.322368421 base units, and 1 hectopascal equals 100 base units, so dividing one by the other gives the direct torr-to-hectopascal factor of 1.33322368421.
Simple example
1 Torr × 1.333223684 = 1.333223684 hPa
1 torr = 1.333223684 hectopascals.
Real-world example
100 Torr × 1.333223684 = 133.3223684 hPa
100 torrs = 133.3223684 hectopascals.
Conversion table
| Torr (Torr) | Hectopascal (hPa) |
|---|---|
| 1 Torr | 1.333223684 hPa |
| 10 Torr | 13.33223684 hPa |
| 50 Torr | 66.66118421 hPa |
| 100 Torr | 133.3223684 hPa |
| 500 Torr | 666.6118421 hPa |
| 1,000 Torr | 1,333.223684 hPa |
Reverse conversion: Hectopascal to Torr
1.333223684 hPa × 0.7500616827 = 0.9999999998 Torr
1.333223684 hectopascals = 0.9999999998 torrs.
torrs = hectopascals × 0.750061682704
For a page dedicated to this direction, see Hectopascal to Torr.
Understanding the Torr (Torr)
A torr is 1/760 standard atmosphere.
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 torr?
1 torr equals 1.333223684 hectopascals, using the exact defined conversion factor rather than an estimate.
How do I convert torr to hectopascal?
Multiply the torr value by 1.333223684. The converter above does this instantly to whatever precision you set.
How do I convert hectopascal back to torr?
Use the reverse factor: 1 hectopascal equals 0.7500616827 torrs. You can also use the swap control in the converter above to flip the direction instantly.
What is a torr?
Torr (Torr) is a unit of engineering.
What is a hectopascal?
Hectopascal (hPa) is a unit of engineering.
Is the torr to hectopascal conversion exact?
Yes. Both torr and hectopascal are defined by fixed standards rather than physical artifacts, so the factor of 1.333223684 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.