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Hectopascals to Millibar Converter

hPa → mbar: type a value and the result appears instantly.

1 hPa = 1 mbar
1 mbar = 1 hPa
—

How to convert hectopascals to millibar

Use this formula:

mbar = hPa × 1

Examples

hPa to mbar conversion chart

hectopascals (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
70 hPa70 mbar
75 hPa75 mbar
80 hPa80 mbar
90 hPa90 mbar
100 hPa100 mbar
150 hPa150 mbar
200 hPa200 mbar
250 hPa250 mbar
500 hPa500 mbar
1,000 hPa1,000 mbar

About the units

Hectopascal (hPa) is a metric (SI) unit. 1 hPa = 100 Pa.

Millibar (mbar) is a commonly used unit. 1 mbar = 1 hPa.

Frequently asked questions

How do I convert hectopascals to millibar?
Multiply the value in hPa by 1.
How many millibar are in 1 hectopascal?
1 hPa = 1 mbar.
What is 12 hPa in mbar?
12 hPa = 12 mbar.
How do I convert millibar to hectopascals?
Use the reverse converter: mbar → hPa.

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Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters