How many Millimeter of mercury are in one Inch of water?

One Inch of water equals 1.868320129 mmHg. 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 Inch of water to Millimeter of mercury 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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Inch of water to Millimeter of mercury

Convert Inch of water to Millimeter of mercury and get the exact value instantly.

Inch of water (inH₂O)Millimeter of mercury (mmHg)1.868320129

1 inH₂O = 1.868320129 mmHg

Related conversions

Inch of water → Pascal Inch of water → Kilopascal Inch of water → Hectopascal Inch of water → Megapascal Inch of water → Bar Inch of water → Pound per square inch Inch of water → Kip per square inch Inch of water → Atmosphere

About this conversion

To convert Inch of water to Millimeter of mercury, multiply the number of Inch of water by 1.868320129.

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

Inch of water (inH₂O)	Millimeter of mercury (mmHg)
1 inH₂O	1.868320129 mmHg
2 inH₂O	3.736640257 mmHg
5 inH₂O	9.341600643 mmHg
10 inH₂O	18.68320129 mmHg
100 inH₂O	186.8320129 mmHg

How to use this converter

Enter your Inch of water value
Type any number into the Inch of water field. It starts at 1 so you can read the rate straight away.
Read the Millimeter of mercury result
The amount in Millimeter of mercury 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 Millimeter of mercury are in one Inch of water?: One Inch of water equals 1.868320129 mmHg. 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 Inch of water to Millimeter of mercury 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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