Pressure
PatocmH₂O
Convert pascals (Pa) to centimetres of water column (cmH₂O).
Factor1 Pa = 0.01019716 cmH₂O
Converter
Pa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
cmH₂O
Rendered to 6 significant figures.
Formula
Formula
cmH₂O = Pa × 0.01019716
Multiply any value in pascals by 0.01019716 to obtain the value in centimetres of water column.
Worked example
Convert 1000 Pa to cmH₂O.
- 01Start with 1000 Pa.
- 02Multiply by the conversion factor: 1000 × 0.01019716 = 10.1972 cmH₂O.
Result1000 Pa = 10.1972 cmH₂O
Conversion table
| Pa | cmH₂O |
|---|---|
| 1 | 0.010197 |
| 2 | 0.020394 |
| 5 | 0.050986 |
| 10 | 0.10197 |
| 20 | 0.20394 |
| 50 | 0.50986 |
| 100 | 1.0197 |
| 200 | 2.0394 |
| 500 | 5.0986 |
| 1000 | 10.197 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from Pa to cmH₂O?
1 Pa equals 0.01019716 cmH₂O. To convert, multiply the value in pascals by 0.01019716.
How do I convert 1 Pa to cmH₂O?
1 Pa = 0.0101972 cmH₂O. For any value, multiply by 0.01019716.
How do I convert cmH₂O back to Pa?
Divide by the same factor — or equivalently, multiply by 98.0665. So 1 cmH₂O = 98.0665 Pa.
When would I need to convert pascal to centimetre of water column?
Pressure conversions between Pa and cmH₂O 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).