Pressure
mbartohPa
Convert millibars (mbar) to hectopascals (hPa).
Factor1 mbar = 1 hPa
Converter
mbar
Accepts numbers or expressions, e.g. 150 + 14.7
Result
hPa
Rendered to 6 significant figures.
Formula
Formula
hPa = mbar × 1
Multiply any value in millibars by 1 to obtain the value in hectopascals.
Worked example
Convert 1013.25 mbar to hPa.
- 01Start with 1013.25 mbar.
- 02Multiply by the conversion factor: 1013.25 × 1 = 1013.25 hPa.
Result1013.25 mbar = 1013.25 hPa
Conversion table
| mbar | hPa |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 5 | 5 |
| 10 | 10 |
| 20 | 20 |
| 50 | 50 |
| 100 | 100 |
| 200 | 200 |
| 500 | 500 |
| 1000 | 1000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mbar to hPa?
1 mbar equals 1 hPa. To convert, multiply the value in millibars by 1.
How do I convert 1 mbar to hPa?
1 mbar = 1 hPa. For any value, multiply by 1.
How do I convert hPa back to mbar?
Divide by the same factor — or equivalently, multiply by 1. So 1 hPa = 1 mbar.
When would I need to convert millibar to hectopascal?
Pressure conversions between mbar and hPa are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).