Hectopascal is 100 pascal units.
Hectopascals to Technical atmospheres Converter — hPa to at
Convert Hectopascal (hPa) to Technical atmosphere (at) using the exact conversion factor (1 hectopascal = 0.0010197162 technical atmosphere). See the formula, worked examples, and conversion table.
Hectopascals to Technical atmospheres 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.
Technical atmosphere is kilogram-force per square centimeter.
Result = input x 100 / 98066.5.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Hectopascals to Technical atmospheres
Hectopascal and Technical atmosphere 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: Hectopascal is 100 pascal units, and technical atmosphere is kilogram-force per square centimeter.
Formula
technical atmospheres = hectopascals × 0.00101971621298
This factor comes from each unit's defined relationship to the category's base unit: 1 hectopascal equals 100 base units, and 1 technical atmosphere equals 98066.5 base units, so dividing one by the other gives the direct hectopascal-to-technical atmosphere factor of 0.00101971621298.
Simple example
1 hPa × 0.001019716213 = 0.0010197162 at
1 hectopascal = 0.0010197162 technical atmospheres.
Real-world example
100 hPa × 0.001019716213 = 0.1019716213 at
100 hectopascals = 0.1019716213 technical atmospheres.
Conversion table
| Hectopascal (hPa) | Technical atmosphere (at) |
|---|---|
| 1 hPa | 0.0010197162 at |
| 10 hPa | 0.0101971621 at |
| 50 hPa | 0.0509858107 at |
| 100 hPa | 0.1019716213 at |
| 500 hPa | 0.5098581065 at |
| 1,000 hPa | 1.019716213 at |
Reverse conversion: Technical atmosphere to Hectopascal
0.0010197162 at × 980.665 = 0.9999999873 hPa
0.0010197162 technical atmospheres = 0.9999999873 hectopascals.
hectopascals = technical atmospheres × 980.665
For a page dedicated to this direction, see Technical atmosphere to Hectopascal.
Understanding the Hectopascal (hPa)
Hectopascal is 100 pascal units.
Understanding the Technical atmosphere (at)
Technical atmosphere is kilogram-force per square centimeter.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many technical atmospheres are in 1 hectopascal?
1 hectopascal equals 0.0010197162 technical atmospheres, using the exact defined conversion factor rather than an estimate.
How do I convert hectopascal to technical atmosphere?
Multiply the hectopascal value by 0.001019716213. The converter above does this instantly to whatever precision you set.
How do I convert technical atmosphere back to hectopascal?
Use the reverse factor: 1 technical atmosphere equals 980.665 hectopascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectopascal?
Hectopascal (hPa) is a unit of engineering.
What is a technical atmosphere?
Technical atmosphere (at) is a unit of engineering.
Is the hectopascal to technical atmosphere conversion exact?
Yes. Both hectopascal and technical atmosphere are defined by fixed standards rather than physical artifacts, so the factor of 0.001019716213 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.