Hectopascal is 100 pascal units.
Hectopascals to Decapascals Converter — hPa to daPa
Convert Hectopascal (hPa) to Decapascal (daPa) using the exact conversion factor (1 hectopascal = 10 decapascal). See the formula, worked examples, and conversion table.
Hectopascals to Decapascals 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.
Decapascal is 10 pascal units.
Result = input x 100 / 10.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Hectopascals to Decapascals
Hectopascal and Decapascal 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 decapascal is 10 pascal units.
Formula
decapascals = hectopascals × 10
This factor comes from each unit's defined relationship to the category's base unit: 1 hectopascal equals 100 base units, and 1 decapascal equals 10 base units, so dividing one by the other gives the direct hectopascal-to-decapascal factor of 10.
Simple example
1 hPa × 10 = 10 daPa
1 hectopascal = 10 decapascals.
Real-world example
100 hPa × 10 = 1,000 daPa
100 hectopascals = 1,000 decapascals.
Conversion table
| Hectopascal (hPa) | Decapascal (daPa) |
|---|---|
| 1 hPa | 10 daPa |
| 10 hPa | 100 daPa |
| 50 hPa | 500 daPa |
| 100 hPa | 1,000 daPa |
| 500 hPa | 5,000 daPa |
| 1,000 hPa | 10,000 daPa |
Reverse conversion: Decapascal to Hectopascal
10 daPa × 0.1 = 1 hPa
10 decapascals = 1 hectopascal.
hectopascals = decapascals × 0.1
For a page dedicated to this direction, see Decapascal to Hectopascal.
Understanding the Hectopascal (hPa)
Hectopascal is 100 pascal units.
Understanding the Decapascal (daPa)
Decapascal is 10 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decapascals are in 1 hectopascal?
1 hectopascal equals 10 decapascals, using the exact defined conversion factor rather than an estimate.
How do I convert hectopascal to decapascal?
Multiply the hectopascal value by 10. The converter above does this instantly to whatever precision you set.
How do I convert decapascal back to hectopascal?
Use the reverse factor: 1 decapascal equals 0.1 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 decapascal?
Decapascal (daPa) is a unit of engineering.
Is the hectopascal to decapascal conversion exact?
Yes. Both hectopascal and decapascal are defined by fixed standards rather than physical artifacts, so the factor of 10 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.