Hectopascal is 100 pascal units.
Hectopascals to Kilopascals Converter — hPa to kPa
Convert Hectopascal (hPa) to Kilopascal (kPa) using the exact conversion factor (1 hectopascal = 0.1 kilopascal). See the formula, worked examples, and conversion table.
Hectopascals to Kilopascals converter
Converter
Pressure Converter
Convert pascals, bars, PSI, atmospheres, mercury columns, water columns, and engineering pressure units.
Context values
Some unit families need one extra value for a physically accurate result.
Kilopascal is 1000 pascal units.
Result = input x 100 / 1000.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectopascals to Kilopascals
Hectopascal and Kilopascal both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: Hectopascal is 100 pascal units, and kilopascal is 1000 pascal units.
Formula
kilopascals = hectopascals × 0.1
This factor comes from each unit's defined relationship to the category's base unit: 1 hectopascal equals 100 base units, and 1 kilopascal equals 1000 base units, so dividing one by the other gives the direct hectopascal-to-kilopascal factor of 0.1.
Simple example
1 hPa × 0.1 = 0.1 kPa
1 hectopascal = 0.1 kilopascals.
Real-world example
35 hPa × 0.1 = 3.5 kPa
35 hectopascals = 3.5 kilopascals.
Conversion table
| Hectopascal (hPa) | Kilopascal (kPa) |
|---|---|
| 1 hPa | 0.1 kPa |
| 5 hPa | 0.5 kPa |
| 10 hPa | 1 kPa |
| 25 hPa | 2.5 kPa |
| 50 hPa | 5 kPa |
| 100 hPa | 10 kPa |
Reverse conversion: Kilopascal to Hectopascal
0.1 kPa × 10 = 1 hPa
0.1 kilopascals = 1 hectopascal.
hectopascals = kilopascals × 10
For a page dedicated to this direction, see Kilopascal to Hectopascal.
Understanding the Hectopascal (hPa)
Hectopascal is 100 pascal units.
Understanding the Kilopascal (kPa)
Kilopascal is 1000 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilopascals are in 1 hectopascal?
1 hectopascal equals 0.1 kilopascals, using the exact defined conversion factor rather than an estimate.
How do I convert hectopascal to kilopascal?
Multiply the hectopascal value by 0.1. The converter above does this instantly to whatever precision you set.
How do I convert kilopascal back to hectopascal?
Use the reverse factor: 1 kilopascal equals 10 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 pressure.
What is a kilopascal?
Kilopascal (kPa) is a unit of pressure.
Is the hectopascal to kilopascal conversion exact?
Yes. Both hectopascal and kilopascal are defined by fixed standards rather than physical artifacts, so the factor of 0.1 used above is exact to as many digits as you choose to display.