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Millimeter of mercury to Centimeter of water
Convert Millimeter of mercury to Centimeter of water and get the exact value instantly.
1 mmHg = 1.35951 cmH₂O
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About this conversion
To convert Millimeter of mercury to Centimeter of water, multiply the number of Millimeter of mercury by 1.35951.
Pressure is reported in pascals, bars, PSI, atmospheres or millimeters of mercury depending on whether you are looking at tires, the weather, diving or medicine.
Conversion table
| Millimeter of mercury (mmHg) | Centimeter of water (cmH₂O) |
|---|---|
| 1 mmHg | 1.35951 cmH₂O |
| 2 mmHg | 2.71902 cmH₂O |
| 5 mmHg | 6.79755 cmH₂O |
| 10 mmHg | 13.5951 cmH₂O |
| 100 mmHg | 135.951 cmH₂O |
How to use this converter
- Enter your Millimeter of mercury value
Type any number into the Millimeter of mercury field. It starts at 1 so you can read the rate straight away.
- Read the Centimeter of water result
The amount in Centimeter of water updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Centimeter of water are in one Millimeter of mercury?
- One Millimeter of mercury equals 1.35951 cmH₂O. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Millimeter of mercury to Centimeter of water conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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