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Inches of Mercury to Hectopascals Converter (inHg to hPa)

1 inHg = 33.86389 hPa. Type any value to convert inches of mercury to hectopascals.

1 inHg = 33.86389 hPa

Formula: hPa = inHg × 33.86389

Common values
Decimals
In every unit 13 units
Pascal (Pa) 3,386.389 Pa
Hectopascal (hPa) 33.86389 hPa
Kilopascal (kPa) 3.386389 kPa
Megapascal (MPa) 0.003386389 MPa
Millibar (mbar) 33.86389 mbar
Bar (bar) 0.03386389 bar
Standard atmosphere (atm) 0.03342106094 atm
Technical atmosphere (at) 0.03453155767 at
Pound per square inch (psi) 0.4911541996 psi
Millimeter of mercury (mmHg) 25.4000027 mmHg
Torr (Torr) 25.40000632 Torr
Inch of mercury (inHg) 1 inHg
Inch of water (inH₂O) 13.59510144 inH₂O

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Inches of mercury to hectopascals table

Formula: hPa = inHg × 33.86389

Inch of mercury (inHg)Hectopascal (hPa)
0.1 inHg3.386389 hPa
0.25 inHg8.4659725 hPa
0.5 inHg16.931945 hPa
1 inHg33.86389 hPa
2 inHg67.72778 hPa
3 inHg101.59167 hPa
4 inHg135.45556 hPa
5 inHg169.31945 hPa
6 inHg203.18334 hPa
7 inHg237.04723 hPa
8 inHg270.91112 hPa
9 inHg304.77501 hPa
10 inHg338.6389 hPa
12 inHg406.36668 hPa
15 inHg507.95835 hPa
20 inHg677.2778 hPa
25 inHg846.59725 hPa
30 inHg1,015.9167 hPa
40 inHg1,354.5556 hPa
50 inHg1,693.1945 hPa
60 inHg2,031.8334 hPa
75 inHg2,539.79175 hPa
100 inHg3,386.389 hPa
150 inHg5,079.5835 hPa
200 inHg6,772.778 hPa
250 inHg8,465.9725 hPa
500 inHg16,931.945 hPa
1,000 inHg33,863.89 hPa

How to use: Inches of Mercury to Hectopascals

  1. 1 Type the value in inches of mercury.
  2. 2 The result in hectopascals appears at once – or type in the hectopascals field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of pressure.

About this tool

Inch of mercury (inHg) is a unit of pressure (imperial and US customary); 1 inHg = 3,386.389 Pa. Hectopascal (hPa) is a unit of pressure (SI); 1 hPa = 100 Pa.

To convert inches of mercury to hectopascals, multiply the value by 33.86389 (hPa = inHg × 33.86389). Example: 2.5 inHg = 84.659725 hPa.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert inches of mercury to hectopascals?

To convert inches of mercury to hectopascals, multiply the value by 33.86389: hPa = inHg × 33.86389. For example 2.5 inHg = 84.659725 hPa.

What is 1 inHg in hectopascals?

1 inHg = 33.86389 hPa. The other way round, 1 hPa = 0.02952998016 inHg.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of pressure here?

Yes – choose any of the 13 units of pressure in the From and To lists, or switch to another measurement at the top.

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