QUICK CONVERSION
Millimetres of water column to Millibar
Enter a value to convert millimetres of water column to millibar, or use the right-hand input to convert in reverse.
How to convert millimetres of water column to millibar
Multiply the number of millimetres of water column by 0.0980665 to get millibar.
Formula: Millibar = Millimetres of water column × 0.0980665.
Common conversion values
| Millimetres of water column (mmH₂O (4 °C)) | Millibar (mbar) |
|---|---|
| 0 | 0 |
| 1 | 0.0980665 |
| 2 | 0.196133 |
| 5 | 0.4903325 |
| 10 | 0.980665 |
| 20 | 1.96133 |
| 25 | 2.4516625 |
| 50 | 4.903325 |
| 100 | 9.80665 |
| 500 | 49.03325 |
| 1000 | 98.0665 |
Important measurement notes
Pressure values are absolute unit magnitudes; gauge versus absolute pressure depends on the source measurement, not the unit symbol.
Related conversions
Figures are rounded for display. For regulated or safety-critical work, confirm the relevant measurement standard and precision.