Inches of mercury.
inHgs to Hectopascals Converter — inHg to hPa
Convert inHg (inHg) to Hectopascal (hPa) using the exact conversion factor (1 inhg = 33.86389 hectopascal). See the formula, worked examples, and conversion table.
inHgs to Hectopascals 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.
Hectopascal is 100 pascal units.
Result = input x 3386.389 / 100.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting inHgs to Hectopascals
inHg and Hectopascal 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: Inches of mercury, and hectopascal is 100 pascal units.
Formula
hectopascals = inhgs × 33.86389
This factor comes from each unit's defined relationship to the category's base unit: 1 inhg equals 3386.389 base units, and 1 hectopascal equals 100 base units, so dividing one by the other gives the direct inhg-to-hectopascal factor of 33.86389.
Simple example
1 inHg × 33.86389 = 33.86389 hPa
1 inhg = 33.86389 hectopascals.
Real-world example
35 inHg × 33.86389 = 1,185.23615 hPa
35 inhgs = 1,185.23615 hectopascals.
Conversion table
| inHg (inHg) | Hectopascal (hPa) |
|---|---|
| 1 inHg | 33.86389 hPa |
| 5 inHg | 169.31945 hPa |
| 10 inHg | 338.6389 hPa |
| 25 inHg | 846.59725 hPa |
| 50 inHg | 1,693.1945 hPa |
| 100 inHg | 3,386.389 hPa |
Reverse conversion: Hectopascal to inHg
33.86389 hPa × 0.02952998016 = 1 inHg
33.86389 hectopascals = 1 inhgs.
inhgs = hectopascals × 0.0295299801647
For a page dedicated to this direction, see Hectopascal to inHg.
Understanding the inHg (inHg)
Inches of mercury.
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 inhg?
1 inhg equals 33.86389 hectopascals, using the exact defined conversion factor rather than an estimate.
How do I convert inhg to hectopascal?
Multiply the inhg value by 33.86389. The converter above does this instantly to whatever precision you set.
How do I convert hectopascal back to inhg?
Use the reverse factor: 1 hectopascal equals 0.0295299802 inhgs. You can also use the swap control in the converter above to flip the direction instantly.
What is a inhg?
inHg (inHg) is a unit of pressure.
What is a hectopascal?
Hectopascal (hPa) is a unit of pressure.
Is the inhg to hectopascal conversion exact?
Yes. Both inhg and hectopascal are defined by fixed standards rather than physical artifacts, so the factor of 33.86389 used above is exact to as many digits as you choose to display.