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Hectopascals to Millibars Converter (hPa to mbar)

1 hPa = 1 mbar. Type any value to convert hectopascals to millibars.

1 hPa = 1 mbar

Formula: mbar = hPa × 1

Common values
Decimals
In every unit 13 units
Pascal (Pa) 100 Pa
Hectopascal (hPa) 1 hPa
Kilopascal (kPa) 0.1 kPa
Megapascal (MPa) 0.0001 MPa
Millibar (mbar) 1 mbar
Bar (bar) 0.001 bar
Standard atmosphere (atm) 0.0009869232667 atm
Technical atmosphere (at) 0.001019716213 at
Pound per square inch (psi) 0.01450377377 psi
Millimeter of mercury (mmHg) 0.7500615758 mmHg
Torr (Torr) 0.7500616827 Torr
Inch of mercury (inHg) 0.02952998016 inHg
Inch of water (inH₂O) 0.401463076 inH₂O

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If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

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

Hectopascals to millibars table

Formula: mbar = hPa × 1

Hectopascal (hPa)Millibar (mbar)
0.1 hPa0.1 mbar
0.25 hPa0.25 mbar
0.5 hPa0.5 mbar
1 hPa1 mbar
2 hPa2 mbar
3 hPa3 mbar
4 hPa4 mbar
5 hPa5 mbar
6 hPa6 mbar
7 hPa7 mbar
8 hPa8 mbar
9 hPa9 mbar
10 hPa10 mbar
12 hPa12 mbar
15 hPa15 mbar
20 hPa20 mbar
25 hPa25 mbar
30 hPa30 mbar
40 hPa40 mbar
50 hPa50 mbar
60 hPa60 mbar
75 hPa75 mbar
100 hPa100 mbar
150 hPa150 mbar
200 hPa200 mbar
250 hPa250 mbar
500 hPa500 mbar
1,000 hPa1,000 mbar

How to use: Hectopascals to Millibars

  1. 1 Type the value in hectopascals.
  2. 2 The result in millibars appears at once – or type in the millibars 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

Hectopascal (hPa) is a unit of pressure (SI); 1 hPa = 100 Pa. Millibar (mbar) is a unit of pressure (metric, accepted for use with the SI); 1 mbar = 100 Pa.

To convert hectopascals to millibars, multiply the value by 1 (mbar = hPa × 1). Example: 2.5 hPa = 2.5 mbar.

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

Frequently asked questions

How do I convert hectopascals to millibars?

To convert hectopascals to millibars, multiply the value by 1: mbar = hPa × 1. For example 2.5 hPa = 2.5 mbar.

What is 1 hPa in millibars?

1 hPa = 1 mbar. The other way round, 1 mbar = 1 hPa.

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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